./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.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_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i -s /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/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 b34e199f0da2018b0ae97fc3f9a24725315a1b16 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:01:26,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:26,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:26,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:26,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:26,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:26,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:26,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:26,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:26,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:26,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:26,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:26,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:26,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:26,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:26,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:26,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:26,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:26,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:26,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:26,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:26,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:26,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:26,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:26,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:26,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:26,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:26,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:26,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:26,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:26,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:26,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:26,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:26,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:26,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:26,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:26,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:26,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:26,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:26,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:26,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:26,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:01:26,683 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:26,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:26,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:26,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:26,685 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:26,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:26,686 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:26,686 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:26,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:26,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:26,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:26,698 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:01:26,698 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:01:26,699 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:01:26,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:26,699 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:26,699 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:26,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:26,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:26,700 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:26,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:26,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:26,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:26,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:26,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:26,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:26,701 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_95391d39-02d7-4932-b1b9-5b7d5c1506a5/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 -> b34e199f0da2018b0ae97fc3f9a24725315a1b16 [2019-10-22 09:01:26,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:26,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:26,753 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:26,755 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:26,755 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:26,756 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i [2019-10-22 09:01:26,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/data/7d00c41a3/4c62770c0ffb4b8a9ba9028dd02a005e/FLAG3f2010387 [2019-10-22 09:01:27,337 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:27,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/sv-benchmarks/c/memsafety-bftpd/bftpd_3.i [2019-10-22 09:01:27,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/data/7d00c41a3/4c62770c0ffb4b8a9ba9028dd02a005e/FLAG3f2010387 [2019-10-22 09:01:27,597 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/data/7d00c41a3/4c62770c0ffb4b8a9ba9028dd02a005e [2019-10-22 09:01:27,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:27,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:01:27,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:27,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:27,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:27,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ee902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:27, skipping insertion in model container [2019-10-22 09:01:27,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:27" (1/1) ... [2019-10-22 09:01:27,630 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:27,670 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:28,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:28,138 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:28,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:28,262 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:28,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28 WrapperNode [2019-10-22 09:01:28,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:28,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:28,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:28,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:28,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... [2019-10-22 09:01:28,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:28,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:28,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:28,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:28,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-22 09:01:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 09:01:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 09:01:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2019-10-22 09:01:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure c1 [2019-10-22 09:01:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure c2 [2019-10-22 09:01:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:01:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 09:01:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 09:01:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 09:01:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 09:01:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 09:01:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 09:01:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 09:01:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 09:01:28,410 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 09:01:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 09:01:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 09:01:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 09:01:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 09:01:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 09:01:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 09:01:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 09:01:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 09:01:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 09:01:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 09:01:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 09:01:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 09:01:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 09:01:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-22 09:01:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-10-22 09:01:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-10-22 09:01:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-10-22 09:01:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-22 09:01:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-10-22 09:01:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-10-22 09:01:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure __bzero [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-10-22 09:01:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-10-22 09:01:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-10-22 09:01:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-10-22 09:01:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-10-22 09:01:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure c1 [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure c2 [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 09:01:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 09:01:29,324 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:29,324 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-22 09:01:29,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:29 BoogieIcfgContainer [2019-10-22 09:01:29,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:29,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:29,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:29,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:29,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:27" (1/3) ... [2019-10-22 09:01:29,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e23c549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:29, skipping insertion in model container [2019-10-22 09:01:29,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:28" (2/3) ... [2019-10-22 09:01:29,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e23c549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:29, skipping insertion in model container [2019-10-22 09:01:29,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:29" (3/3) ... [2019-10-22 09:01:29,341 INFO L109 eAbstractionObserver]: Analyzing ICFG bftpd_3.i [2019-10-22 09:01:29,352 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:29,359 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 09:01:29,367 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 09:01:29,386 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:29,386 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:01:29,386 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:29,387 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:29,387 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:29,387 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:29,387 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:29,387 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:29,405 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2019-10-22 09:01:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:29,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:29,416 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:29,419 INFO L410 AbstractCegarLoop]: === Iteration 1 === [parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr0REQUIRES_VIOLATION, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE, c2Err6ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE, c2Err7ASSERT_VIOLATIONMEMORY_FREE, c2Err8ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 09:01:29,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:29,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1583989328, now seen corresponding path program 1 times [2019-10-22 09:01:29,434 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:29,434 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80585317] [2019-10-22 09:01:29,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:29,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:29,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:29,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80585317] [2019-10-22 09:01:29,944 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:29,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:29,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739385155] [2019-10-22 09:01:29,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:29,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:29,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:29,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:29,970 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2019-10-22 09:01:30,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:30,539 INFO L93 Difference]: Finished difference Result 97 states and 122 transitions. [2019-10-22 09:01:30,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:30,542 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-10-22 09:01:30,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:30,558 INFO L225 Difference]: With dead ends: 97 [2019-10-22 09:01:30,559 INFO L226 Difference]: Without dead ends: 88 [2019-10-22 09:01:30,560 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 09:01:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-10-22 09:01:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2019-10-22 09:01:30,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-10-22 09:01:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2019-10-22 09:01:30,613 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 9 [2019-10-22 09:01:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:30,613 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2019-10-22 09:01:30,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:30,613 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2019-10-22 09:01:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:30,617 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:30,618 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:30,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr0REQUIRES_VIOLATION, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE, c2Err6ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE, c2Err7ASSERT_VIOLATIONMEMORY_FREE, c2Err8ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 09:01:30,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:30,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1583989329, now seen corresponding path program 1 times [2019-10-22 09:01:30,619 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:30,619 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087037085] [2019-10-22 09:01:30,619 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:30,619 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:30,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:30,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087037085] [2019-10-22 09:01:30,909 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:30,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:30,909 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570316584] [2019-10-22 09:01:30,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:30,912 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:30,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:30,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:30,914 INFO L87 Difference]: Start difference. First operand 84 states and 110 transitions. Second operand 6 states. [2019-10-22 09:01:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,726 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2019-10-22 09:01:31,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:01:31,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-10-22 09:01:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,730 INFO L225 Difference]: With dead ends: 165 [2019-10-22 09:01:31,731 INFO L226 Difference]: Without dead ends: 165 [2019-10-22 09:01:31,732 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 09:01:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-22 09:01:31,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 134. [2019-10-22 09:01:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-22 09:01:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2019-10-22 09:01:31,752 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 192 transitions. Word has length 9 [2019-10-22 09:01:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,753 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-10-22 09:01:31,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 192 transitions. [2019-10-22 09:01:31,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:01:31,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,754 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:31,754 INFO L410 AbstractCegarLoop]: === Iteration 3 === [parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr0REQUIRES_VIOLATION, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE, c2Err6ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE, c2Err7ASSERT_VIOLATIONMEMORY_FREE, c2Err8ASSERT_VIOLATIONMEMORY_FREE]=== [2019-10-22 09:01:31,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1859028932, now seen corresponding path program 1 times [2019-10-22 09:01:31,755 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:31,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126100992] [2019-10-22 09:01:31,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,755 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:31,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:31,926 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:31,927 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:31,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:31 BoogieIcfgContainer [2019-10-22 09:01:31,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:31,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:31,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:31,963 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:31,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:29" (3/4) ... [2019-10-22 09:01:31,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:01:32,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_95391d39-02d7-4932-b1b9-5b7d5c1506a5/bin/uautomizer/witness.graphml [2019-10-22 09:01:32,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:32,019 INFO L168 Benchmark]: Toolchain (without parser) took 4415.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 214.4 MB). Free memory was 946.0 MB in the beginning and 1.2 GB in the end (delta: -225.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:32,020 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:32,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:32,021 INFO L168 Benchmark]: Boogie Preprocessor took 74.66 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:32,022 INFO L168 Benchmark]: RCFGBuilder took 987.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:32,022 INFO L168 Benchmark]: TraceAbstraction took 2627.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -148.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:32,023 INFO L168 Benchmark]: Witness Printer took 54.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:32,026 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 656.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.66 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 987.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2627.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -148.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 54.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 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: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 371 SDslu, 50 SDs, 0 SdLazy, 310 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred 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...