./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2e94e6aa 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/count_down-alloca_true-valid-memsafety_true-termination.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 f25230c4e3ada1aa4514132cfb87afb0e539c23b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 17:12:41,807 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 17:12:41,809 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 17:12:41,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 17:12:41,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 17:12:41,823 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 17:12:41,824 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 17:12:41,828 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 17:12:41,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 17:12:41,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 17:12:41,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 17:12:41,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 17:12:41,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 17:12:41,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 17:12:41,852 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 17:12:41,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 17:12:41,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 17:12:41,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 17:12:41,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 17:12:41,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 17:12:41,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 17:12:41,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 17:12:41,873 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 17:12:41,873 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 17:12:41,873 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 17:12:41,874 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 17:12:41,875 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 17:12:41,875 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 17:12:41,877 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 17:12:41,880 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 17:12:41,880 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 17:12:41,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 17:12:41,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 17:12:41,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 17:12:41,883 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 17:12:41,884 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 17:12:41,884 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-01 17:12:41,914 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 17:12:41,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 17:12:41,918 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 17:12:41,919 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 17:12:41,919 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 17:12:41,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 17:12:41,920 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 17:12:41,920 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 17:12:41,920 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 17:12:41,920 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 17:12:41,920 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 17:12:41,921 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-01 17:12:41,921 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-01 17:12:41,921 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-01 17:12:41,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 17:12:41,921 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 17:12:41,921 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 17:12:41,924 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 17:12:41,925 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 17:12:41,925 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 17:12:41,925 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 17:12:41,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 17:12:41,925 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 17:12:41,925 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 17:12:41,926 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 17:12:41,926 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 17:12:41,926 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 -> f25230c4e3ada1aa4514132cfb87afb0e539c23b [2019-01-01 17:12:41,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 17:12:42,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 17:12:42,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 17:12:42,016 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 17:12:42,016 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 17:12:42,018 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2019-01-01 17:12:42,077 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15596b916/71c9fdb348c940dfa38a271090817326/FLAGeaa7640fa [2019-01-01 17:12:42,636 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 17:12:42,636 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-memsafety/count_down-alloca_true-valid-memsafety_true-termination.i [2019-01-01 17:12:42,653 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15596b916/71c9fdb348c940dfa38a271090817326/FLAGeaa7640fa [2019-01-01 17:12:42,961 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15596b916/71c9fdb348c940dfa38a271090817326 [2019-01-01 17:12:42,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 17:12:42,967 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-01 17:12:42,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 17:12:42,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 17:12:42,973 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 17:12:42,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 05:12:42" (1/1) ... [2019-01-01 17:12:42,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420f99b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:42, skipping insertion in model container [2019-01-01 17:12:42,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 05:12:42" (1/1) ... [2019-01-01 17:12:42,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 17:12:43,045 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 17:12:43,479 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 17:12:43,496 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 17:12:43,677 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 17:12:43,742 INFO L195 MainTranslator]: Completed translation [2019-01-01 17:12:43,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43 WrapperNode [2019-01-01 17:12:43,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 17:12:43,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 17:12:43,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 17:12:43,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 17:12:43,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (1/1) ... [2019-01-01 17:12:43,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 17:12:43,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 17:12:43,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 17:12:43,807 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 17:12:43,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (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 [2019-01-01 17:12:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-01 17:12:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 17:12:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-01-01 17:12:43,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-01-01 17:12:43,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-01 17:12:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-01-01 17:12:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-01-01 17:12:43,878 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-01-01 17:12:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-01-01 17:12:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-01-01 17:12:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-01-01 17:12:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-01-01 17:12:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-01-01 17:12:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-01-01 17:12:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-01-01 17:12:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-01-01 17:12:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-01-01 17:12:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-01-01 17:12:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-01-01 17:12:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-01-01 17:12:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-01-01 17:12:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-01-01 17:12:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-01-01 17:12:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-01-01 17:12:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-01-01 17:12:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-01-01 17:12:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-01-01 17:12:43,884 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-01-01 17:12:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-01-01 17:12:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-01-01 17:12:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-01-01 17:12:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-01-01 17:12:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-01-01 17:12:43,885 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-01-01 17:12:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-01-01 17:12:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-01-01 17:12:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-01-01 17:12:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-01-01 17:12:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-01-01 17:12:43,886 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-01-01 17:12:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-01-01 17:12:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-01-01 17:12:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-01-01 17:12:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-01-01 17:12:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-01-01 17:12:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-01-01 17:12:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-01-01 17:12:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-01-01 17:12:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-01-01 17:12:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-01-01 17:12:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-01-01 17:12:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-01-01 17:12:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-01-01 17:12:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-01-01 17:12:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-01-01 17:12:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-01-01 17:12:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-01-01 17:12:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-01-01 17:12:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-01-01 17:12:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-01-01 17:12:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-01-01 17:12:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-01-01 17:12:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-01-01 17:12:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-01-01 17:12:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-01-01 17:12:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-01-01 17:12:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-01-01 17:12:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-01-01 17:12:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-01-01 17:12:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-01-01 17:12:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-01-01 17:12:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-01-01 17:12:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-01-01 17:12:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-01-01 17:12:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-01-01 17:12:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 17:12:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 17:12:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 17:12:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 17:12:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-01 17:12:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 17:12:44,480 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 17:12:44,480 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2019-01-01 17:12:44,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 05:12:44 BoogieIcfgContainer [2019-01-01 17:12:44,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 17:12:44,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 17:12:44,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 17:12:44,486 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 17:12:44,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 05:12:42" (1/3) ... [2019-01-01 17:12:44,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c0e5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 05:12:44, skipping insertion in model container [2019-01-01 17:12:44,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 05:12:43" (2/3) ... [2019-01-01 17:12:44,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c0e5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 05:12:44, skipping insertion in model container [2019-01-01 17:12:44,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 05:12:44" (3/3) ... [2019-01-01 17:12:44,489 INFO L112 eAbstractionObserver]: Analyzing ICFG count_down-alloca_true-valid-memsafety_true-termination.i [2019-01-01 17:12:44,498 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 17:12:44,507 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-01-01 17:12:44,525 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-01-01 17:12:44,555 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 17:12:44,556 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 17:12:44,556 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-01 17:12:44,557 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 17:12:44,557 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 17:12:44,557 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 17:12:44,558 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 17:12:44,558 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 17:12:44,561 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 17:12:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-01-01 17:12:44,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-01 17:12:44,591 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:44,592 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:44,594 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:44,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:44,601 INFO L82 PathProgramCache]: Analyzing trace with hash -355510925, now seen corresponding path program 1 times [2019-01-01 17:12:44,604 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:44,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:44,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:44,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:44,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:44,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:12:44,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 17:12:44,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 17:12:44,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 17:12:44,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 17:12:44,839 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2019-01-01 17:12:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:44,949 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-01-01 17:12:44,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 17:12:44,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-01-01 17:12:44,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:44,960 INFO L225 Difference]: With dead ends: 36 [2019-01-01 17:12:44,960 INFO L226 Difference]: Without dead ends: 33 [2019-01-01 17:12:44,962 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 17:12:44,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-01-01 17:12:44,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-01-01 17:12:44,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-01 17:12:44,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2019-01-01 17:12:44,998 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2019-01-01 17:12:44,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:44,999 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-01-01 17:12:44,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 17:12:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2019-01-01 17:12:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-01 17:12:45,001 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:45,001 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:45,001 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:45,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:45,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1951364451, now seen corresponding path program 1 times [2019-01-01 17:12:45,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:45,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:45,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:45,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:45,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:45,307 WARN L181 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2019-01-01 17:12:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:45,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:12:45,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 17:12:45,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 17:12:45,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 17:12:45,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-01-01 17:12:45,553 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 6 states. [2019-01-01 17:12:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:45,939 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2019-01-01 17:12:45,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 17:12:45,940 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-01-01 17:12:45,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:45,941 INFO L225 Difference]: With dead ends: 38 [2019-01-01 17:12:45,941 INFO L226 Difference]: Without dead ends: 38 [2019-01-01 17:12:45,942 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-01-01 17:12:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-01-01 17:12:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2019-01-01 17:12:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-01-01 17:12:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2019-01-01 17:12:45,949 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 12 [2019-01-01 17:12:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:45,949 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2019-01-01 17:12:45,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 17:12:45,950 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2019-01-01 17:12:45,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-01 17:12:45,950 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:45,950 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:45,951 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:45,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:45,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1951364450, now seen corresponding path program 1 times [2019-01-01 17:12:45,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:45,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:45,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:45,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:45,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:45,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:12:45,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 17:12:45,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-01 17:12:45,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 17:12:45,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 17:12:45,996 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 3 states. [2019-01-01 17:12:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:46,052 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2019-01-01 17:12:46,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 17:12:46,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-01-01 17:12:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:46,054 INFO L225 Difference]: With dead ends: 32 [2019-01-01 17:12:46,055 INFO L226 Difference]: Without dead ends: 32 [2019-01-01 17:12:46,055 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 [2019-01-01 17:12:46,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-01-01 17:12:46,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-01-01 17:12:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-01-01 17:12:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2019-01-01 17:12:46,061 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 12 [2019-01-01 17:12:46,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:46,062 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-01-01 17:12:46,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-01 17:12:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2019-01-01 17:12:46,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-01 17:12:46,063 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:46,063 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:46,063 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:46,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:46,063 INFO L82 PathProgramCache]: Analyzing trace with hash 720612124, now seen corresponding path program 1 times [2019-01-01 17:12:46,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:46,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:46,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:46,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:46,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:46,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:12:46,173 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 17:12:46,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:46,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:12:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:46,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-01 17:12:46,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2019-01-01 17:12:46,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 17:12:46,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 17:12:46,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-01 17:12:46,332 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 7 states. [2019-01-01 17:12:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:46,416 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2019-01-01 17:12:46,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 17:12:46,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-01-01 17:12:46,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:46,418 INFO L225 Difference]: With dead ends: 54 [2019-01-01 17:12:46,418 INFO L226 Difference]: Without dead ends: 54 [2019-01-01 17:12:46,419 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-01 17:12:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-01-01 17:12:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2019-01-01 17:12:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-01 17:12:46,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2019-01-01 17:12:46,425 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 16 [2019-01-01 17:12:46,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:46,425 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2019-01-01 17:12:46,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 17:12:46,425 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2019-01-01 17:12:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-01 17:12:46,426 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:46,426 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:46,427 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:46,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:46,427 INFO L82 PathProgramCache]: Analyzing trace with hash 327585114, now seen corresponding path program 1 times [2019-01-01 17:12:46,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:46,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:46,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:46,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:46,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:46,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:12:46,976 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 17:12:46,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:47,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:12:47,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-01-01 17:12:47,046 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-01 17:12:47,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-01 17:12:47,057 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2019-01-01 17:12:47,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:47,238 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 17:12:47,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-01-01 17:12:47,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 17:12:47,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 17:12:47,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-01-01 17:12:47,240 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 7 states. [2019-01-01 17:12:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:47,467 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2019-01-01 17:12:47,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 17:12:47,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-01-01 17:12:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:47,469 INFO L225 Difference]: With dead ends: 39 [2019-01-01 17:12:47,469 INFO L226 Difference]: Without dead ends: 39 [2019-01-01 17:12:47,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-01 17:12:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-01-01 17:12:47,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2019-01-01 17:12:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-01-01 17:12:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-01-01 17:12:47,475 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 16 [2019-01-01 17:12:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:47,476 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-01-01 17:12:47,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 17:12:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-01-01 17:12:47,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-01 17:12:47,477 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:47,477 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:47,477 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:47,478 INFO L82 PathProgramCache]: Analyzing trace with hash 864091801, now seen corresponding path program 1 times [2019-01-01 17:12:47,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:47,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:47,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:47,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:47,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:47,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:12:47,649 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 17:12:47,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:47,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:12:47,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:47,789 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 17:12:47,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2019-01-01 17:12:47,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-01 17:12:47,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 17:12:47,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-01-01 17:12:47,791 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 10 states. [2019-01-01 17:12:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:48,658 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2019-01-01 17:12:48,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-01 17:12:48,659 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-01-01 17:12:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:48,660 INFO L225 Difference]: With dead ends: 100 [2019-01-01 17:12:48,661 INFO L226 Difference]: Without dead ends: 100 [2019-01-01 17:12:48,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2019-01-01 17:12:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-01-01 17:12:48,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 45. [2019-01-01 17:12:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-01-01 17:12:48,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2019-01-01 17:12:48,669 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 17 [2019-01-01 17:12:48,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:48,669 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2019-01-01 17:12:48,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-01 17:12:48,669 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2019-01-01 17:12:48,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-01 17:12:48,670 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:48,670 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:48,670 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:48,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1275206298, now seen corresponding path program 1 times [2019-01-01 17:12:48,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:48,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:48,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:48,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:48,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-01 17:12:48,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:12:48,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 17:12:48,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 17:12:48,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 17:12:48,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-01 17:12:48,747 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 4 states. [2019-01-01 17:12:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:48,822 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2019-01-01 17:12:48,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 17:12:48,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-01-01 17:12:48,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:48,824 INFO L225 Difference]: With dead ends: 46 [2019-01-01 17:12:48,825 INFO L226 Difference]: Without dead ends: 46 [2019-01-01 17:12:48,825 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-01 17:12:48,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-01-01 17:12:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2019-01-01 17:12:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-01-01 17:12:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2019-01-01 17:12:48,832 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 18 [2019-01-01 17:12:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:48,832 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2019-01-01 17:12:48,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 17:12:48,833 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2019-01-01 17:12:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-01 17:12:48,833 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:48,834 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:48,834 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:48,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2000444524, now seen corresponding path program 1 times [2019-01-01 17:12:48,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:48,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:48,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:49,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:12:49,110 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 17:12:49,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:49,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:12:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-01 17:12:49,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-01 17:12:49,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2019-01-01 17:12:49,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-01 17:12:49,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-01 17:12:49,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-01-01 17:12:49,305 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 11 states. [2019-01-01 17:12:49,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:49,718 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2019-01-01 17:12:49,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-01 17:12:49,719 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2019-01-01 17:12:49,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:49,720 INFO L225 Difference]: With dead ends: 56 [2019-01-01 17:12:49,720 INFO L226 Difference]: Without dead ends: 56 [2019-01-01 17:12:49,721 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-01-01 17:12:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-01-01 17:12:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2019-01-01 17:12:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-01-01 17:12:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2019-01-01 17:12:49,726 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 21 [2019-01-01 17:12:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:49,726 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2019-01-01 17:12:49,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-01 17:12:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2019-01-01 17:12:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-01 17:12:49,727 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:49,727 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:49,728 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:49,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash 720580846, now seen corresponding path program 1 times [2019-01-01 17:12:49,728 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:49,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:49,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:49,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:49,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:50,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 17:12:50,049 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 17:12:50,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:50,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 17:12:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 17:12:50,175 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 17:12:50,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2019-01-01 17:12:50,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-01-01 17:12:50,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-01 17:12:50,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-01-01 17:12:50,177 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 13 states. [2019-01-01 17:12:50,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:50,763 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2019-01-01 17:12:50,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-01-01 17:12:50,764 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2019-01-01 17:12:50,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:50,766 INFO L225 Difference]: With dead ends: 74 [2019-01-01 17:12:50,766 INFO L226 Difference]: Without dead ends: 74 [2019-01-01 17:12:50,767 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=178, Invalid=634, Unknown=0, NotChecked=0, Total=812 [2019-01-01 17:12:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-01-01 17:12:50,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 48. [2019-01-01 17:12:50,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-01-01 17:12:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2019-01-01 17:12:50,773 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 21 [2019-01-01 17:12:50,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:50,773 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2019-01-01 17:12:50,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-01-01 17:12:50,774 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2019-01-01 17:12:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-01 17:12:50,774 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 17:12:50,775 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 17:12:50,775 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr8ENSURES_VIOLATIONMEMORY_LEAK, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION]=== [2019-01-01 17:12:50,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 17:12:50,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1884236905, now seen corresponding path program 1 times [2019-01-01 17:12:50,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 17:12:50,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 17:12:50,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:50,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 17:12:50,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 17:12:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 17:12:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-01 17:12:50,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 17:12:50,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 17:12:50,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 17:12:50,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 17:12:50,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 17:12:50,868 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 4 states. [2019-01-01 17:12:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 17:12:50,964 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2019-01-01 17:12:50,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 17:12:50,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-01-01 17:12:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 17:12:50,966 INFO L225 Difference]: With dead ends: 47 [2019-01-01 17:12:50,966 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 17:12:50,967 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 17:12:50,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 17:12:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 17:12:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 17:12:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 17:12:50,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-01-01 17:12:50,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 17:12:50,968 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 17:12:50,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 17:12:50,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 17:12:50,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 17:12:50,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 05:12:50 BoogieIcfgContainer [2019-01-01 17:12:50,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 17:12:50,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 17:12:50,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 17:12:50,974 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 17:12:50,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 05:12:44" (3/4) ... [2019-01-01 17:12:50,978 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 17:12:50,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-01 17:12:50,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-01-01 17:12:50,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-01-01 17:12:50,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-01 17:12:50,989 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-01-01 17:12:50,989 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-01-01 17:12:50,989 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-01 17:12:50,989 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-01 17:12:51,037 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 17:12:51,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 17:12:51,038 INFO L168 Benchmark]: Toolchain (without parser) took 8072.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2019-01-01 17:12:51,039 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. [2019-01-01 17:12:51,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. [2019-01-01 17:12:51,041 INFO L168 Benchmark]: Boogie Preprocessor took 61.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 17:12:51,041 INFO L168 Benchmark]: RCFGBuilder took 675.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2019-01-01 17:12:51,042 INFO L168 Benchmark]: TraceAbstraction took 6491.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.2 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2019-01-01 17:12:51,042 INFO L168 Benchmark]: Witness Printer took 63.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-01-01 17:12:51,046 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 774.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 675.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6491.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.2 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * Witness Printer took 63.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 540]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 556]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 9 error locations. SAFE Result, 6.4s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 221 SDtfs, 827 SDslu, 477 SDs, 0 SdLazy, 596 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 90 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=8, 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, 10 MinimizatonAttempts, 107 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 241 ConstructedInterpolants, 2 QuantifiedInterpolants, 22019 SizeOfPredicates, 12 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 18/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...