./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.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_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/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 129dca108ba5ab1702fbcd782a34bbf933adb446 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:09,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:09,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:09,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:09,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:09,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:09,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:09,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:09,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:09,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:09,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:09,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:09,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:09,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:09,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:09,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:09,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:09,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:09,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:09,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:09,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:09,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:09,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:09,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:09,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:09,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:09,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:09,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:09,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:09,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:09,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:09,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:09,160 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:09,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:09,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:09,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:09,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:09,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:09,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:09,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:09,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:09,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:58:09,178 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:09,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:09,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:09,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:09,189 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:09,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:09,189 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:09,189 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:58:09,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:09,191 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:09,191 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:09,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:09,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:09,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:09,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:09,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:09,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:09,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:09,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:09,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:09,192 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_ed657e04-b3e7-4d6b-a22a-4c259a630523/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 -> 129dca108ba5ab1702fbcd782a34bbf933adb446 [2019-10-22 08:58:09,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:09,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:09,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:09,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:09,239 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:09,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/../../sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2019-10-22 08:58:09,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/data/0ad137634/9e2a6998842c4fbfa50766dd0437724a/FLAGef52aed8b [2019-10-22 08:58:09,744 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:09,744 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/sv-benchmarks/c/memsafety-bftpd/bftpd_2.i [2019-10-22 08:58:09,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/data/0ad137634/9e2a6998842c4fbfa50766dd0437724a/FLAGef52aed8b [2019-10-22 08:58:10,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/data/0ad137634/9e2a6998842c4fbfa50766dd0437724a [2019-10-22 08:58:10,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:10,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:58:10,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:10,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:10,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:10,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea50d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10, skipping insertion in model container [2019-10-22 08:58:10,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,295 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:10,341 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:10,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:10,751 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:10,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:10,872 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:10,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10 WrapperNode [2019-10-22 08:58:10,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:10,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:10,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:10,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:10,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... [2019-10-22 08:58:10,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:10,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:10,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:10,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:10,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/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 08:58:10,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:58:10,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:10,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-22 08:58:10,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:58:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:58:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2019-10-22 08:58:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure c1 [2019-10-22 08:58:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure c2 [2019-10-22 08:58:10,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 08:58:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:58:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:58:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:58:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:58:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:58:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:58:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:58:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:58:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-22 08:58:10,997 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-10-22 08:58:10,998 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-10-22 08:58:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure __bzero [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-10-22 08:58:11,000 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-10-22 08:58:11,001 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-10-22 08:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-10-22 08:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-10-22 08:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-10-22 08:58:11,002 INFO L130 BoogieDeclarations]: Found specification of procedure c1 [2019-10-22 08:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure c2 [2019-10-22 08:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2019-10-22 08:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-22 08:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:58:11,515 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:11,515 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-22 08:58:11,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:11 BoogieIcfgContainer [2019-10-22 08:58:11,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:11,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:11,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:11,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:11,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:10" (1/3) ... [2019-10-22 08:58:11,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586ec7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:11, skipping insertion in model container [2019-10-22 08:58:11,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:10" (2/3) ... [2019-10-22 08:58:11,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586ec7ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:11, skipping insertion in model container [2019-10-22 08:58:11,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:11" (3/3) ... [2019-10-22 08:58:11,522 INFO L109 eAbstractionObserver]: Analyzing ICFG bftpd_2.i [2019-10-22 08:58:11,531 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:11,539 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 08:58:11,549 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 08:58:11,565 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:11,565 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:58:11,565 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:11,565 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:11,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:11,566 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:11,566 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:11,566 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:11,584 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2019-10-22 08:58:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:11,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:11,593 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:11,595 INFO L410 AbstractCegarLoop]: === Iteration 1 === [parse_inputErr0REQUIRES_VIOLATION, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c1Err0ASSERT_VIOLATIONMEMORY_FREE, c1Err1ASSERT_VIOLATIONMEMORY_FREE, c1Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 08:58:11,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:11,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1583989328, now seen corresponding path program 1 times [2019-10-22 08:58:11,608 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:11,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872244736] [2019-10-22 08:58:11,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:11,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:11,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,050 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 08:58:12,051 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872244736] [2019-10-22 08:58:12,051 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:12,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:12,051 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949211519] [2019-10-22 08:58:12,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:12,055 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:12,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:12,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:12,068 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2019-10-22 08:58:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:12,503 INFO L93 Difference]: Finished difference Result 105 states and 130 transitions. [2019-10-22 08:58:12,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:12,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 08:58:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:12,516 INFO L225 Difference]: With dead ends: 105 [2019-10-22 08:58:12,517 INFO L226 Difference]: Without dead ends: 96 [2019-10-22 08:58:12,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-22 08:58:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2019-10-22 08:58:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-10-22 08:58:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 118 transitions. [2019-10-22 08:58:12,576 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 118 transitions. Word has length 9 [2019-10-22 08:58:12,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:12,576 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 118 transitions. [2019-10-22 08:58:12,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 118 transitions. [2019-10-22 08:58:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:12,577 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:12,578 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:12,581 INFO L410 AbstractCegarLoop]: === Iteration 2 === [parse_inputErr0REQUIRES_VIOLATION, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c1Err0ASSERT_VIOLATIONMEMORY_FREE, c1Err1ASSERT_VIOLATIONMEMORY_FREE, c1Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 08:58:12,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:12,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1583989329, now seen corresponding path program 1 times [2019-10-22 08:58:12,582 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:12,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929743178] [2019-10-22 08:58:12,582 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:12,582 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:12,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:12,870 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 08:58:12,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929743178] [2019-10-22 08:58:12,870 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:12,870 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:12,871 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271966116] [2019-10-22 08:58:12,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:12,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:12,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:12,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:12,873 INFO L87 Difference]: Start difference. First operand 92 states and 118 transitions. Second operand 6 states. [2019-10-22 08:58:13,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:13,564 INFO L93 Difference]: Finished difference Result 176 states and 238 transitions. [2019-10-22 08:58:13,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:13,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 08:58:13,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:13,566 INFO L225 Difference]: With dead ends: 176 [2019-10-22 08:58:13,566 INFO L226 Difference]: Without dead ends: 176 [2019-10-22 08:58:13,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-10-22 08:58:13,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 145. [2019-10-22 08:58:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-10-22 08:58:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2019-10-22 08:58:13,597 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 211 transitions. Word has length 9 [2019-10-22 08:58:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:13,597 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 211 transitions. [2019-10-22 08:58:13,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 211 transitions. [2019-10-22 08:58:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:13,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:13,598 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:13,601 INFO L410 AbstractCegarLoop]: === Iteration 3 === [parse_inputErr0REQUIRES_VIOLATION, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c1Err0ASSERT_VIOLATIONMEMORY_FREE, c1Err1ASSERT_VIOLATIONMEMORY_FREE, c1Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 08:58:13,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:13,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1859028932, now seen corresponding path program 1 times [2019-10-22 08:58:13,602 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:13,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905025940] [2019-10-22 08:58:13,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:13,602 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:13,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:13,727 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:13,727 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:58:13,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:13 BoogieIcfgContainer [2019-10-22 08:58:13,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:13,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:13,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:13,753 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:13,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:11" (3/4) ... [2019-10-22 08:58:13,756 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:58:13,794 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ed657e04-b3e7-4d6b-a22a-4c259a630523/bin/uautomizer/witness.graphml [2019-10-22 08:58:13,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:13,796 INFO L168 Benchmark]: Toolchain (without parser) took 3529.03 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 237.5 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -239.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:13,797 INFO L168 Benchmark]: CDTParser took 0.14 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 08:58:13,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:13,798 INFO L168 Benchmark]: Boogie Preprocessor took 52.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:13,798 INFO L168 Benchmark]: RCFGBuilder took 590.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:13,799 INFO L168 Benchmark]: TraceAbstraction took 2235.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -130.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:13,799 INFO L168 Benchmark]: Witness Printer took 41.71 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:13,801 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 604.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 590.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.9 MB). Peak memory consumption was 68.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2235.80 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -130.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 41.71 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 693]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L685] int state = STATE_1; [L686] char *global = 0; [L687-L690] const struct command commands[] = { {"c1",c1,STATE_1}, {"c2",c2,STATE_2} }; [L722] CALL parse_input("c1") VAL [\old(global)=0, \old(global)=0, \old(state)=0, commands={-2:0}, global={0:0}, input={2:0}, state=0] [L692] int i = 0; VAL [\old(global)=0, \old(global)=0, \old(state)=0, commands={-2:0}, global={0:0}, i=0, input={2:0}, input={2:0}, state=0] [L692] COND TRUE i < 2 VAL [\old(global)=0, \old(global)=0, \old(state)=0, commands={-2:0}, global={0:0}, i=0, input={2:0}, input={2:0}, state=0] [L693] EXPR commands[i].name VAL [\old(global)=0, \old(global)=0, \old(state)=0, commands={-2:0}, commands[i].name={105:116}, global={0:0}, i=0, input={2:0}, input={2:0}, state=0] [L693] strcmp(commands[i].name,input) VAL [\old(global)=0, \old(global)=0, \old(state)=0, commands={-2:0}, commands[i].name={105:116}, global={0:0}, i=0, input={2:0}, input={2:0}, state=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 79 locations, 20 error locations. Result: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 367 SDslu, 54 SDs, 0 SdLazy, 315 SolverSat, 111 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=2, 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, 2 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 1888 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 incorrect! Received shutdown request...