./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/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/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 [2019-11-16 00:20:00,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:20:00,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:20:00,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:20:00,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:20:00,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:20:00,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:20:00,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:20:00,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:20:00,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:20:00,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:20:00,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:20:00,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:20:00,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:20:00,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:20:00,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:20:00,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:20:00,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:20:00,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:20:00,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:20:00,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:20:00,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:20:00,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:20:00,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:20:00,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:20:00,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:20:00,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:20:00,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:20:00,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:20:00,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:20:00,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:20:00,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:20:00,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:20:00,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:20:00,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:20:00,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:20:00,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:20:00,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:20:00,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:20:00,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:20:00,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:20:00,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 00:20:00,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:20:00,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:20:00,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:20:00,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:20:00,943 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:20:00,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:20:00,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:20:00,943 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 00:20:00,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:20:00,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:20:00,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:20:00,945 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 00:20:00,945 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 00:20:00,946 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 00:20:00,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:20:00,946 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:20:00,946 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:20:00,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:20:00,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:20:00,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:20:00,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:20:00,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:20:00,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:20:00,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:20:00,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:20:00,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:20:00,949 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/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/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 [2019-11-16 00:20:00,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:20:00,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:20:00,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:20:00,997 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:20:00,997 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:20:00,998 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-11-16 00:20:01,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/data/1796907ac/d19dba0d87344cdd823ca7dbc6e08984/FLAG6cf8f8c1b [2019-11-16 00:20:01,493 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:20:01,494 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/sv-benchmarks/c/array-memsafety/openbsd_cmemset-alloca-1.i [2019-11-16 00:20:01,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/data/1796907ac/d19dba0d87344cdd823ca7dbc6e08984/FLAG6cf8f8c1b [2019-11-16 00:20:01,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/data/1796907ac/d19dba0d87344cdd823ca7dbc6e08984 [2019-11-16 00:20:01,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:20:01,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-16 00:20:01,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:01,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:20:01,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:20:01,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:01" (1/1) ... [2019-11-16 00:20:01,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f144824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:01, skipping insertion in model container [2019-11-16 00:20:01,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:01" (1/1) ... [2019-11-16 00:20:01,798 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:20:01,836 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:20:02,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:02,221 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:20:02,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:20:02,349 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:20:02,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02 WrapperNode [2019-11-16 00:20:02,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:20:02,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:20:02,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:20:02,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:20:02,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... [2019-11-16 00:20:02,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:20:02,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:20:02,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:20:02,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:20:02,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/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 [2019-11-16 00:20:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-16 00:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-16 00:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-16 00:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-16 00:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-16 00:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-16 00:20:02,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cmemset [2019-11-16 00:20:02,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-16 00:20:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-16 00:20:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-16 00:20:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-16 00:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-16 00:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-16 00:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-16 00:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-16 00:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-16 00:20:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-16 00:20:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-16 00:20:02,473 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-16 00:20:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-16 00:20:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-16 00:20:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-16 00:20:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-16 00:20:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-16 00:20:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-16 00:20:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-16 00:20:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-16 00:20:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-16 00:20:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-16 00:20:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-16 00:20:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-16 00:20:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-16 00:20:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-16 00:20:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-16 00:20:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-16 00:20:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-16 00:20:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-16 00:20:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-16 00:20:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-16 00:20:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-16 00:20:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-16 00:20:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-16 00:20:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-16 00:20:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-16 00:20:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-16 00:20:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-16 00:20:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-16 00:20:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-16 00:20:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-16 00:20:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-16 00:20:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-16 00:20:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-16 00:20:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-16 00:20:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-16 00:20:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-16 00:20:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-16 00:20:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-16 00:20:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-16 00:20:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-16 00:20:02,484 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-16 00:20:02,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-16 00:20:02,485 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-16 00:20:02,485 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-16 00:20:02,486 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-16 00:20:02,486 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-16 00:20:02,486 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-16 00:20:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-16 00:20:02,487 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-16 00:20:02,488 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-16 00:20:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-16 00:20:02,489 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-16 00:20:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-16 00:20:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-16 00:20:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-16 00:20:02,494 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-16 00:20:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-16 00:20:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-16 00:20:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-16 00:20:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-16 00:20:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-16 00:20:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-16 00:20:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-16 00:20:02,497 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-16 00:20:02,498 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-16 00:20:02,499 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-16 00:20:02,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-16 00:20:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure cmemset [2019-11-16 00:20:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:20:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-16 00:20:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:20:02,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:20:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-16 00:20:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:20:02,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:20:02,884 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:20:02,884 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-16 00:20:02,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:02 BoogieIcfgContainer [2019-11-16 00:20:02,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:20:02,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:20:02,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:20:02,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:20:02,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:01" (1/3) ... [2019-11-16 00:20:02,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d047b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:02, skipping insertion in model container [2019-11-16 00:20:02,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:02" (2/3) ... [2019-11-16 00:20:02,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d047b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:02, skipping insertion in model container [2019-11-16 00:20:02,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:02" (3/3) ... [2019-11-16 00:20:02,891 INFO L109 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca-1.i [2019-11-16 00:20:02,900 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:20:02,907 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-16 00:20:02,915 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-16 00:20:02,932 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:20:02,932 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-16 00:20:02,933 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:20:02,933 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:20:02,933 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:20:02,933 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:20:02,933 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:20:02,933 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:20:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-16 00:20:02,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-16 00:20:02,956 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:02,957 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:02,959 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:02,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:02,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405860, now seen corresponding path program 1 times [2019-11-16 00:20:02,971 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:02,972 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069868498] [2019-11-16 00:20:02,972 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:02,972 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:02,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:03,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069868498] [2019-11-16 00:20:03,362 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:03,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-16 00:20:03,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731306897] [2019-11-16 00:20:03,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-16 00:20:03,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:03,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-16 00:20:03,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:20:03,384 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 9 states. [2019-11-16 00:20:03,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:03,790 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-11-16 00:20:03,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-16 00:20:03,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-16 00:20:03,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:03,806 INFO L225 Difference]: With dead ends: 32 [2019-11-16 00:20:03,806 INFO L226 Difference]: Without dead ends: 29 [2019-11-16 00:20:03,812 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2019-11-16 00:20:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-16 00:20:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-16 00:20:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-16 00:20:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-11-16 00:20:03,866 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2019-11-16 00:20:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:03,867 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-11-16 00:20:03,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-16 00:20:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-11-16 00:20:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-16 00:20:03,869 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:03,869 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:03,869 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:03,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1505405861, now seen corresponding path program 1 times [2019-11-16 00:20:03,870 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:03,870 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795586777] [2019-11-16 00:20:03,870 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:03,871 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:03,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:04,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795586777] [2019-11-16 00:20:04,000 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:04,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-16 00:20:04,001 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376134229] [2019-11-16 00:20:04,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:20:04,003 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:04,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:20:04,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:20:04,004 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 8 states. [2019-11-16 00:20:04,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:04,236 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-11-16 00:20:04,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:20:04,236 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-11-16 00:20:04,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:04,239 INFO L225 Difference]: With dead ends: 29 [2019-11-16 00:20:04,239 INFO L226 Difference]: Without dead ends: 29 [2019-11-16 00:20:04,240 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 [2019-11-16 00:20:04,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-16 00:20:04,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2019-11-16 00:20:04,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-16 00:20:04,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-11-16 00:20:04,247 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2019-11-16 00:20:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:04,247 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-11-16 00:20:04,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:20:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-11-16 00:20:04,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:20:04,250 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:04,250 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:04,250 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:04,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1092272849, now seen corresponding path program 1 times [2019-11-16 00:20:04,251 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:04,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942878075] [2019-11-16 00:20:04,251 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:04,251 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:04,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:04,379 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942878075] [2019-11-16 00:20:04,379 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:04,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-16 00:20:04,380 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350385031] [2019-11-16 00:20:04,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:20:04,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:04,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:20:04,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:20:04,381 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 7 states. [2019-11-16 00:20:04,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:04,594 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-11-16 00:20:04,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-16 00:20:04,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-16 00:20:04,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:04,596 INFO L225 Difference]: With dead ends: 39 [2019-11-16 00:20:04,596 INFO L226 Difference]: Without dead ends: 39 [2019-11-16 00:20:04,597 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 [2019-11-16 00:20:04,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-16 00:20:04,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2019-11-16 00:20:04,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-16 00:20:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-11-16 00:20:04,606 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 17 [2019-11-16 00:20:04,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:04,606 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-11-16 00:20:04,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:20:04,607 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2019-11-16 00:20:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:20:04,607 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:04,608 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:04,608 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:04,608 INFO L82 PathProgramCache]: Analyzing trace with hash 699245839, now seen corresponding path program 1 times [2019-11-16 00:20:04,609 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:04,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964093645] [2019-11-16 00:20:04,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:04,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:04,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:04,765 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964093645] [2019-11-16 00:20:04,765 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:04,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-16 00:20:04,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728363318] [2019-11-16 00:20:04,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:20:04,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:04,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:20:04,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:20:04,767 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 8 states. [2019-11-16 00:20:05,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:05,019 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2019-11-16 00:20:05,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-16 00:20:05,020 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-16 00:20:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:05,021 INFO L225 Difference]: With dead ends: 33 [2019-11-16 00:20:05,021 INFO L226 Difference]: Without dead ends: 30 [2019-11-16 00:20:05,022 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 [2019-11-16 00:20:05,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-16 00:20:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-11-16 00:20:05,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-16 00:20:05,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-11-16 00:20:05,026 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2019-11-16 00:20:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:05,026 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-11-16 00:20:05,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:20:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-11-16 00:20:05,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-16 00:20:05,027 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:05,027 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:05,027 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:05,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1853612607, now seen corresponding path program 1 times [2019-11-16 00:20:05,028 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:05,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376222308] [2019-11-16 00:20:05,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:05,028 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:05,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:05,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376222308] [2019-11-16 00:20:05,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:05,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-16 00:20:05,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842652436] [2019-11-16 00:20:05,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-16 00:20:05,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:05,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-16 00:20:05,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-16 00:20:05,186 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 7 states. [2019-11-16 00:20:05,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:05,372 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2019-11-16 00:20:05,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:20:05,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-16 00:20:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:05,373 INFO L225 Difference]: With dead ends: 41 [2019-11-16 00:20:05,373 INFO L226 Difference]: Without dead ends: 41 [2019-11-16 00:20:05,373 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 [2019-11-16 00:20:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-16 00:20:05,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-11-16 00:20:05,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-16 00:20:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2019-11-16 00:20:05,379 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2019-11-16 00:20:05,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:05,379 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2019-11-16 00:20:05,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-16 00:20:05,380 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-11-16 00:20:05,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-16 00:20:05,380 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:05,381 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:05,381 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:05,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:05,381 INFO L82 PathProgramCache]: Analyzing trace with hash 2111778045, now seen corresponding path program 1 times [2019-11-16 00:20:05,382 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:05,382 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180441935] [2019-11-16 00:20:05,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:05,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:05,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:05,677 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180441935] [2019-11-16 00:20:05,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269713155] [2019-11-16 00:20:05,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/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 [2019-11-16 00:20:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:05,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-16 00:20:05,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:20:05,906 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 [2019-11-16 00:20:05,907 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:20:05,916 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:20:05,917 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:20:05,917 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-16 00:20:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:06,216 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:20:06,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2019-11-16 00:20:06,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890873358] [2019-11-16 00:20:06,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-16 00:20:06,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:06,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-16 00:20:06,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-11-16 00:20:06,218 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 22 states. [2019-11-16 00:20:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:07,061 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2019-11-16 00:20:07,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-16 00:20:07,063 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 19 [2019-11-16 00:20:07,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:07,064 INFO L225 Difference]: With dead ends: 44 [2019-11-16 00:20:07,064 INFO L226 Difference]: Without dead ends: 44 [2019-11-16 00:20:07,065 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-11-16 00:20:07,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-16 00:20:07,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-11-16 00:20:07,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-16 00:20:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2019-11-16 00:20:07,071 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 19 [2019-11-16 00:20:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:07,072 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2019-11-16 00:20:07,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-16 00:20:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2019-11-16 00:20:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:20:07,073 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:07,073 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] [2019-11-16 00:20:07,276 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:20:07,276 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:07,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:07,277 INFO L82 PathProgramCache]: Analyzing trace with hash 538552420, now seen corresponding path program 1 times [2019-11-16 00:20:07,277 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:07,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983640601] [2019-11-16 00:20:07,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:07,278 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:07,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:07,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983640601] [2019-11-16 00:20:07,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:20:07,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:20:07,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585112614] [2019-11-16 00:20:07,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:20:07,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:07,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:20:07,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:20:07,403 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2019-11-16 00:20:07,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:07,528 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2019-11-16 00:20:07,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:20:07,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-11-16 00:20:07,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:07,531 INFO L225 Difference]: With dead ends: 42 [2019-11-16 00:20:07,531 INFO L226 Difference]: Without dead ends: 25 [2019-11-16 00:20:07,531 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 [2019-11-16 00:20:07,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-16 00:20:07,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-16 00:20:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-16 00:20:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-16 00:20:07,533 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2019-11-16 00:20:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:07,534 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-16 00:20:07,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:20:07,534 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-16 00:20:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-16 00:20:07,534 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:07,535 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:07,535 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:07,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:07,535 INFO L82 PathProgramCache]: Analyzing trace with hash 402998846, now seen corresponding path program 2 times [2019-11-16 00:20:07,535 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:07,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419501727] [2019-11-16 00:20:07,535 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:07,535 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:07,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:07,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419501727] [2019-11-16 00:20:07,977 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990689744] [2019-11-16 00:20:07,977 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/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 [2019-11-16 00:20:08,105 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-16 00:20:08,105 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:20:08,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 51 conjunts are in the unsatisfiable core [2019-11-16 00:20:08,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:20:08,120 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 [2019-11-16 00:20:08,120 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:20:08,125 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:20:08,126 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:20:08,126 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-16 00:20:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:08,575 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:20:08,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 23 [2019-11-16 00:20:08,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364860248] [2019-11-16 00:20:08,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-16 00:20:08,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:08,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-16 00:20:08,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2019-11-16 00:20:08,577 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 24 states. [2019-11-16 00:20:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:09,973 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-11-16 00:20:09,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-16 00:20:09,973 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 24 [2019-11-16 00:20:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:09,974 INFO L225 Difference]: With dead ends: 36 [2019-11-16 00:20:09,974 INFO L226 Difference]: Without dead ends: 36 [2019-11-16 00:20:09,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=194, Invalid=1446, Unknown=0, NotChecked=0, Total=1640 [2019-11-16 00:20:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-16 00:20:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-11-16 00:20:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-16 00:20:09,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-16 00:20:09,979 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2019-11-16 00:20:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:09,979 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-16 00:20:09,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-16 00:20:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-16 00:20:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-16 00:20:09,980 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:20:09,981 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:20:10,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:20:10,182 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, cmemsetErr0REQUIRES_VIOLATION, cmemsetErr1REQUIRES_VIOLATION]=== [2019-11-16 00:20:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:20:10,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1008858722, now seen corresponding path program 3 times [2019-11-16 00:20:10,182 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:20:10,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124289576] [2019-11-16 00:20:10,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:10,183 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:20:10,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:20:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:20:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:10,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124289576] [2019-11-16 00:20:10,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837256392] [2019-11-16 00:20:10,671 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/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 [2019-11-16 00:20:10,808 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-16 00:20:10,808 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:20:10,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 71 conjunts are in the unsatisfiable core [2019-11-16 00:20:10,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:20:10,827 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 [2019-11-16 00:20:10,827 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-16 00:20:10,846 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-16 00:20:10,846 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-16 00:20:10,847 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-16 00:20:11,431 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:20:11,431 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:20:11,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 29 [2019-11-16 00:20:11,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238227308] [2019-11-16 00:20:11,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-16 00:20:11,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:20:11,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-16 00:20:11,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2019-11-16 00:20:11,434 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 30 states. [2019-11-16 00:20:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:20:12,761 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-16 00:20:12,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-16 00:20:12,765 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 34 [2019-11-16 00:20:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:20:12,766 INFO L225 Difference]: With dead ends: 40 [2019-11-16 00:20:12,766 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:20:12,767 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=2171, Unknown=0, NotChecked=0, Total=2450 [2019-11-16 00:20:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:20:12,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:20:12,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:20:12,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:20:12,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-16 00:20:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:20:12,768 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:20:12,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-16 00:20:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:20:12,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:20:12,973 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:20:12,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:20:12 BoogieIcfgContainer [2019-11-16 00:20:12,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:20:12,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:20:12,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:20:12,978 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:20:12,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:02" (3/4) ... [2019-11-16 00:20:12,981 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:20:12,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-11-16 00:20:12,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32 [2019-11-16 00:20:12,987 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64 [2019-11-16 00:20:12,987 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity [2019-11-16 00:20:12,987 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity [2019-11-16 00:20:12,987 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-11-16 00:20:12,987 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cmemset [2019-11-16 00:20:12,987 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity [2019-11-16 00:20:12,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-16 00:20:12,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-16 00:20:12,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-16 00:20:13,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_51b4ef1e-f519-4cc7-b9db-72074c6738a0/bin/uautomizer/witness.graphml [2019-11-16 00:20:13,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:20:13,039 INFO L168 Benchmark]: Toolchain (without parser) took 11268.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 288.4 MB). Free memory was 939.3 MB in the beginning and 853.9 MB in the end (delta: 85.4 MB). Peak memory consumption was 373.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:13,040 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:20:13,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:13,044 INFO L168 Benchmark]: Boogie Preprocessor took 55.90 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:13,044 INFO L168 Benchmark]: RCFGBuilder took 479.10 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: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:13,045 INFO L168 Benchmark]: TraceAbstraction took 10090.78 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 1.0 GB in the beginning and 857.1 MB in the end (delta: 188.2 MB). Peak memory consumption was 362.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:13,046 INFO L168 Benchmark]: Witness Printer took 60.56 ms. Allocated memory is still 1.3 GB. Free memory was 857.1 MB in the beginning and 853.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:20:13,048 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 578.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.90 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 479.10 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: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10090.78 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 174.6 MB). Free memory was 1.0 GB in the beginning and 857.1 MB in the end (delta: 188.2 MB). Peak memory consumption was 362.8 MB. Max. memory is 11.5 GB. * Witness Printer took 60.56 ms. Allocated memory is still 1.3 GB. Free memory was 857.1 MB in the beginning and 853.9 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: 10.0s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 165 SDtfs, 417 SDslu, 357 SDs, 0 SdLazy, 1594 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 5.6s 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, 0.3s SatisfiabilityAnalysisTime, 3.3s 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...