./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer --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 10bdb405bd6bca2bddb8b686c44dad291e109402 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:32,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:32,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:32,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:32,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:32,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:32,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:32,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:32,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:32,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:32,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:32,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:32,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:32,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:32,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:32,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:32,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:32,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:32,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:32,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:32,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:32,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:32,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:32,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:32,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:32,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:32,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:32,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:32,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:32,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:32,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:32,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:32,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:32,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:32,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:32,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:32,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:32,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:32,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:32,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:32,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:32,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:02:32,987 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:32,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:32,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:32,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:32,989 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:32,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:32,989 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:32,990 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:02:32,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:32,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:32,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:32,990 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:02:32,990 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:02:32,991 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:02:32,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:32,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:32,991 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:32,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:32,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:32,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:32,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:32,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:32,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:32,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:32,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:32,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:32,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer 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 -> 10bdb405bd6bca2bddb8b686c44dad291e109402 [2019-10-22 09:02:33,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:33,038 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:33,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:33,044 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:33,044 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:33,045 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-10-22 09:02:33,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/data/13d318986/7ed48466697147bb98275e01ab5c4105/FLAG46ff13538 [2019-10-22 09:02:33,515 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:33,516 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-10-22 09:02:33,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/data/13d318986/7ed48466697147bb98275e01ab5c4105/FLAG46ff13538 [2019-10-22 09:02:33,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/data/13d318986/7ed48466697147bb98275e01ab5c4105 [2019-10-22 09:02:33,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:33,543 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:02:33,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:33,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:33,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:33,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:33,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b8b389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33, skipping insertion in model container [2019-10-22 09:02:33,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:33,557 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:33,584 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:33,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:33,913 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:33,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:33,991 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:33,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33 WrapperNode [2019-10-22 09:02:33,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:33,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:33,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:33,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:34,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... [2019-10-22 09:02:34,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:34,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:34,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:34,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:34,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/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 [2019-10-22 09:02:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:02:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:02:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:02:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 09:02:34,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 09:02:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 09:02:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2019-10-22 09:02:34,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:02:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:02:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:02:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:02:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:02:34,080 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:02:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:02:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:02:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:02:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:02:34,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 09:02:34,082 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:02:34,083 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:02:34,084 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:02:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:02:34,086 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:02:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:02:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:02:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:02:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:02:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:02:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:02:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:02:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:02:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:02:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:02:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:02:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:02:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2019-10-22 09:02:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:34,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:02:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:02:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:34,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:02:34,514 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:34,514 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-22 09:02:34,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:34 BoogieIcfgContainer [2019-10-22 09:02:34,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:34,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:34,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:34,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:34,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:33" (1/3) ... [2019-10-22 09:02:34,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f86fe30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:34, skipping insertion in model container [2019-10-22 09:02:34,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:33" (2/3) ... [2019-10-22 09:02:34,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f86fe30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:34, skipping insertion in model container [2019-10-22 09:02:34,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:34" (3/3) ... [2019-10-22 09:02:34,522 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2019-10-22 09:02:34,531 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:34,537 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 09:02:34,547 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 09:02:34,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:34,564 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:02:34,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:34,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:34,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:34,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:34,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:34,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 09:02:34,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:34,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:34,587 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:34,589 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:34,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:34,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2019-10-22 09:02:34,602 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:34,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381472364] [2019-10-22 09:02:34,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:34,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:34,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381472364] [2019-10-22 09:02:34,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:34,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:02:34,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480026042] [2019-10-22 09:02:34,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:02:34,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:34,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:02:34,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:34,874 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 9 states. [2019-10-22 09:02:35,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:35,118 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-10-22 09:02:35,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 09:02:35,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-10-22 09:02:35,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:35,127 INFO L225 Difference]: With dead ends: 32 [2019-10-22 09:02:35,128 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 09:02:35,129 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:02:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 09:02:35,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-10-22 09:02:35,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:02:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-10-22 09:02:35,168 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2019-10-22 09:02:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:35,169 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-10-22 09:02:35,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:02:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-10-22 09:02:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:02:35,170 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:35,170 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:35,171 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:35,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:35,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2019-10-22 09:02:35,171 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:35,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47090313] [2019-10-22 09:02:35,172 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:35,172 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:35,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:35,276 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47090313] [2019-10-22 09:02:35,276 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:35,277 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:35,277 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6051069] [2019-10-22 09:02:35,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:02:35,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:35,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:02:35,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:35,279 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 8 states. [2019-10-22 09:02:35,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:35,465 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-22 09:02:35,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:02:35,466 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-22 09:02:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:35,468 INFO L225 Difference]: With dead ends: 29 [2019-10-22 09:02:35,469 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 09:02:35,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-22 09:02:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 09:02:35,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-10-22 09:02:35,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-10-22 09:02:35,476 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2019-10-22 09:02:35,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:35,476 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-10-22 09:02:35,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:02:35,476 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-10-22 09:02:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:02:35,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:35,477 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:35,477 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:35,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:35,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2019-10-22 09:02:35,478 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:35,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358845134] [2019-10-22 09:02:35,478 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:35,478 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:35,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:35,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358845134] [2019-10-22 09:02:35,618 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:35,618 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:35,618 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599107606] [2019-10-22 09:02:35,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:35,618 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:35,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:35,619 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 7 states. [2019-10-22 09:02:35,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:35,810 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-10-22 09:02:35,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 09:02:35,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-22 09:02:35,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:35,812 INFO L225 Difference]: With dead ends: 39 [2019-10-22 09:02:35,813 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:02:35,813 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:02:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:02:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2019-10-22 09:02:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 09:02:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-10-22 09:02:35,824 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2019-10-22 09:02:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:35,825 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-10-22 09:02:35,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-10-22 09:02:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:02:35,826 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:35,826 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:35,827 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:35,827 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2019-10-22 09:02:35,827 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:35,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088396923] [2019-10-22 09:02:35,827 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:35,828 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:35,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:35,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088396923] [2019-10-22 09:02:35,979 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:35,979 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 09:02:35,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730419460] [2019-10-22 09:02:35,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:02:35,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:35,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:02:35,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:35,981 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2019-10-22 09:02:36,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:36,159 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-10-22 09:02:36,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 09:02:36,159 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-10-22 09:02:36,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:36,160 INFO L225 Difference]: With dead ends: 33 [2019-10-22 09:02:36,160 INFO L226 Difference]: Without dead ends: 30 [2019-10-22 09:02:36,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2019-10-22 09:02:36,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-10-22 09:02:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-10-22 09:02:36,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-22 09:02:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-10-22 09:02:36,164 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2019-10-22 09:02:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:36,165 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-10-22 09:02:36,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:02:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-10-22 09:02:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:36,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:36,166 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:36,166 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:36,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2019-10-22 09:02:36,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:36,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601409012] [2019-10-22 09:02:36,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:36,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:36,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:36,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601409012] [2019-10-22 09:02:36,279 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:36,279 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:36,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577182592] [2019-10-22 09:02:36,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:36,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:36,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:36,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:36,281 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2019-10-22 09:02:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:36,418 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-10-22 09:02:36,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:02:36,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-10-22 09:02:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:36,419 INFO L225 Difference]: With dead ends: 41 [2019-10-22 09:02:36,420 INFO L226 Difference]: Without dead ends: 41 [2019-10-22 09:02:36,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:36,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-22 09:02:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-10-22 09:02:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-22 09:02:36,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-10-22 09:02:36,424 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2019-10-22 09:02:36,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:36,425 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-10-22 09:02:36,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:36,425 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-10-22 09:02:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:02:36,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:36,426 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:36,426 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:36,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:36,426 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2019-10-22 09:02:36,426 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:36,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115757057] [2019-10-22 09:02:36,427 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:36,427 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:36,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:36,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115757057] [2019-10-22 09:02:36,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722725034] [2019-10-22 09:02:36,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:36,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-22 09:02:36,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:36,851 INFO L375 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 6 treesize of output 5 [2019-10-22 09:02:36,851 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:02:36,876 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:02:36,876 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:02:36,877 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 09:02:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:37,103 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:02:37,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2019-10-22 09:02:37,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870506317] [2019-10-22 09:02:37,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-22 09:02:37,104 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-22 09:02:37,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-10-22 09:02:37,105 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 22 states. [2019-10-22 09:02:37,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:37,704 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-10-22 09:02:37,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-22 09:02:37,709 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 19 [2019-10-22 09:02:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:37,710 INFO L225 Difference]: With dead ends: 44 [2019-10-22 09:02:37,710 INFO L226 Difference]: Without dead ends: 44 [2019-10-22 09:02:37,711 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-10-22 09:02:37,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-22 09:02:37,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-10-22 09:02:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-22 09:02:37,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-10-22 09:02:37,715 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2019-10-22 09:02:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:37,716 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-10-22 09:02:37,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-22 09:02:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-10-22 09:02:37,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 09:02:37,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:37,718 INFO L380 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] [2019-10-22 09:02:37,918 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:37,919 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:37,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:37,919 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2019-10-22 09:02:37,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:37,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089682197] [2019-10-22 09:02:37,919 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:37,919 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:37,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:38,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089682197] [2019-10-22 09:02:38,013 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:38,013 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:38,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504458494] [2019-10-22 09:02:38,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:38,014 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:38,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:38,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:38,015 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2019-10-22 09:02:38,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:38,093 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-10-22 09:02:38,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:38,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-10-22 09:02:38,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:38,095 INFO L225 Difference]: With dead ends: 42 [2019-10-22 09:02:38,095 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:02:38,095 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:02:38,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:02:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:02:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:02:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-10-22 09:02:38,097 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2019-10-22 09:02:38,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:38,097 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-10-22 09:02:38,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-10-22 09:02:38,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 09:02:38,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:38,098 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:38,098 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:38,099 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2019-10-22 09:02:38,099 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:38,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845670721] [2019-10-22 09:02:38,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,099 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:38,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845670721] [2019-10-22 09:02:38,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558710378] [2019-10-22 09:02:38,447 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:38,511 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 09:02:38,512 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:02:38,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 51 conjunts are in the unsatisfiable core [2019-10-22 09:02:38,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:38,520 INFO L375 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 6 treesize of output 5 [2019-10-22 09:02:38,520 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:02:38,522 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:02:38,523 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:02:38,523 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 09:02:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:38,795 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:02:38,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 23 [2019-10-22 09:02:38,795 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600436417] [2019-10-22 09:02:38,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-22 09:02:38,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:38,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-22 09:02:38,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2019-10-22 09:02:38,796 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 24 states. [2019-10-22 09:02:39,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:39,800 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-10-22 09:02:39,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-22 09:02:39,800 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2019-10-22 09:02:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:39,801 INFO L225 Difference]: With dead ends: 36 [2019-10-22 09:02:39,801 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 09:02:39,802 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=194, Invalid=1446, Unknown=0, NotChecked=0, Total=1640 [2019-10-22 09:02:39,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 09:02:39,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-10-22 09:02:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-22 09:02:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-10-22 09:02:39,804 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2019-10-22 09:02:39,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:39,804 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-10-22 09:02:39,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-22 09:02:39,805 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-10-22 09:02:39,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 09:02:39,808 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:39,808 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:40,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:40,009 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-10-22 09:02:40,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:40,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2019-10-22 09:02:40,009 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:40,009 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283220890] [2019-10-22 09:02:40,009 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,010 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:40,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:40,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283220890] [2019-10-22 09:02:40,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257901451] [2019-10-22 09:02:40,324 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:40,408 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-10-22 09:02:40,408 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 09:02:40,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 71 conjunts are in the unsatisfiable core [2019-10-22 09:02:40,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:40,424 INFO L375 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 6 treesize of output 5 [2019-10-22 09:02:40,424 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 09:02:40,428 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 09:02:40,428 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 09:02:40,428 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-10-22 09:02:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:40,816 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 09:02:40,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 29 [2019-10-22 09:02:40,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157340739] [2019-10-22 09:02:40,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-22 09:02:40,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:40,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-22 09:02:40,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2019-10-22 09:02:40,818 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 30 states. [2019-10-22 09:02:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:41,932 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-10-22 09:02:41,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-22 09:02:41,932 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 34 [2019-10-22 09:02:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:41,933 INFO L225 Difference]: With dead ends: 40 [2019-10-22 09:02:41,933 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:41,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2019-10-22 09:02:41,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:41,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:41,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:41,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-22 09:02:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:41,935 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:41,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-22 09:02:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:41,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:42,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:42,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:42 BoogieIcfgContainer [2019-10-22 09:02:42,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:42,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:42,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:42,140 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:42,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:34" (3/4) ... [2019-10-22 09:02:42,143 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:42,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-10-22 09:02:42,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-10-22 09:02:42,151 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-10-22 09:02:42,151 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-10-22 09:02:42,151 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-10-22 09:02:42,151 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-10-22 09:02:42,151 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2019-10-22 09:02:42,151 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-10-22 09:02:42,155 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-10-22 09:02:42,155 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:02:42,155 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:02:42,190 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_eb47bbad-c589-4ea7-aa32-1a78de978e82/bin/uautomizer/witness.graphml [2019-10-22 09:02:42,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:42,191 INFO L168 Benchmark]: Toolchain (without parser) took 8648.47 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.2 MB). Free memory was 937.8 MB in the beginning and 861.1 MB in the end (delta: 76.7 MB). Peak memory consumption was 360.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:42,192 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:42,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:42,192 INFO L168 Benchmark]: Boogie Preprocessor took 41.14 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:42,193 INFO L168 Benchmark]: RCFGBuilder took 481.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:42,193 INFO L168 Benchmark]: TraceAbstraction took 7623.61 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 169.9 MB). Free memory was 1.0 GB in the beginning and 864.3 MB in the end (delta: 180.5 MB). Peak memory consumption was 350.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:42,193 INFO L168 Benchmark]: Witness Printer took 50.61 ms. Allocated memory is still 1.3 GB. Free memory was 864.3 MB in the beginning and 861.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:42,195 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 447.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.14 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 481.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7623.61 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 169.9 MB). Free memory was 1.0 GB in the beginning and 864.3 MB in the end (delta: 180.5 MB). Peak memory consumption was 350.4 MB. Max. memory is 11.5 GB. * Witness Printer took 50.61 ms. Allocated memory is still 1.3 GB. Free memory was 864.3 MB in the beginning and 861.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 518]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 43 locations, 3 error locations. Result: SAFE, OverallTime: 7.5s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 417 SDslu, 357 SDs, 0 SdLazy, 1594 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 245 ConstructedInterpolants, 4 QuantifiedInterpolants, 56942 SizeOfPredicates, 35 NumberOfNonLiveVariables, 394 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 15/100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...