./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/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/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 [2019-11-15 21:32:32,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:32:32,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:32:32,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:32:32,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:32:32,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:32:32,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:32:32,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:32:32,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:32:32,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:32:32,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:32:32,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:32:32,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:32:32,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:32:32,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:32:32,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:32:32,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:32:32,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:32:32,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:32:32,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:32:32,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:32:32,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:32:32,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:32:32,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:32:32,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:32:33,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:32:33,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:32:33,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:32:33,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:32:33,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:32:33,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:32:33,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:32:33,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:32:33,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:32:33,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:32:33,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:32:33,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:32:33,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:32:33,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:32:33,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:32:33,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:32:33,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-15 21:32:33,034 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:32:33,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:32:33,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:32:33,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:32:33,036 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:32:33,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:32:33,036 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:32:33,036 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:32:33,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:32:33,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:32:33,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:32:33,038 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 21:32:33,038 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 21:32:33,038 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-15 21:32:33,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:32:33,039 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:32:33,039 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:32:33,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:32:33,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:32:33,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:32:33,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:32:33,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:32:33,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:32:33,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:32:33,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:32:33,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:32:33,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/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 [2019-11-15 21:32:33,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:32:33,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:32:33,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:32:33,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:32:33,105 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:32:33,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i [2019-11-15 21:32:33,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/data/900e7d5f0/cd4279a4cfd140b6b43b1cb810a6c92c/FLAG4626f89e4 [2019-11-15 21:32:33,619 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:32:33,620 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/sv-benchmarks/c/memsafety-bftpd/bftpd_3.i [2019-11-15 21:32:33,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/data/900e7d5f0/cd4279a4cfd140b6b43b1cb810a6c92c/FLAG4626f89e4 [2019-11-15 21:32:33,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/data/900e7d5f0/cd4279a4cfd140b6b43b1cb810a6c92c [2019-11-15 21:32:33,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:32:33,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 21:32:33,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:32:33,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:32:33,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:32:33,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:32:33" (1/1) ... [2019-11-15 21:32:33,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e48f584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:33, skipping insertion in model container [2019-11-15 21:32:33,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:32:33" (1/1) ... [2019-11-15 21:32:33,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:32:33,997 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:32:34,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:32:34,376 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:32:34,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:32:34,483 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:32:34,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34 WrapperNode [2019-11-15 21:32:34,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:32:34,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:32:34,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:32:34,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:32:34,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... [2019-11-15 21:32:34,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:32:34,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:32:34,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:32:34,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:32:34,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:32:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 21:32:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:32:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-11-15 21:32:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-15 21:32:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-15 21:32:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2019-11-15 21:32:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure c1 [2019-11-15 21:32:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure c2 [2019-11-15 21:32:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 21:32:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-15 21:32:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-15 21:32:34,614 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 21:32:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 21:32:34,615 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 21:32:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 21:32:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 21:32:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 21:32:34,616 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 21:32:34,618 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 21:32:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 21:32:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 21:32:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 21:32:34,619 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 21:32:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 21:32:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 21:32:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 21:32:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 21:32:34,620 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 21:32:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 21:32:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 21:32:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 21:32:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 21:32:34,621 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 21:32:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 21:32:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 21:32:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 21:32:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 21:32:34,622 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 21:32:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 21:32:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 21:32:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 21:32:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 21:32:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 21:32:34,623 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 21:32:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 21:32:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 21:32:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 21:32:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 21:32:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 21:32:34,624 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 21:32:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 21:32:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 21:32:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 21:32:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 21:32:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 21:32:34,625 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 21:32:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 21:32:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 21:32:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 21:32:34,626 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 21:32:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 21:32:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 21:32:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 21:32:34,627 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 21:32:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 21:32:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-15 21:32:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 21:32:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 21:32:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 21:32:34,628 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 21:32:34,629 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 21:32:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 21:32:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 21:32:34,630 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 21:32:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 21:32:34,631 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 21:32:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 21:32:34,632 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 21:32:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 21:32:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 21:32:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 21:32:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 21:32:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 21:32:34,633 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 21:32:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 21:32:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 21:32:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 21:32:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 21:32:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 21:32:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 21:32:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 21:32:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 21:32:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 21:32:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 21:32:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 21:32:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 21:32:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 21:32:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 21:32:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 21:32:34,637 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 21:32:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 21:32:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 21:32:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 21:32:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 21:32:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 21:32:34,638 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 21:32:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 21:32:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 21:32:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 21:32:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 21:32:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 21:32:34,639 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 21:32:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 21:32:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 21:32:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-15 21:32:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-11-15 21:32:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure memccpy [2019-11-15 21:32:34,640 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-15 21:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-11-15 21:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2019-11-15 21:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-11-15 21:32:34,641 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2019-11-15 21:32:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2019-11-15 21:32:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure strncat [2019-11-15 21:32:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-11-15 21:32:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2019-11-15 21:32:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll [2019-11-15 21:32:34,642 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm [2019-11-15 21:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure strcoll_l [2019-11-15 21:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure strxfrm_l [2019-11-15 21:32:34,643 INFO L130 BoogieDeclarations]: Found specification of procedure strdup [2019-11-15 21:32:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure strndup [2019-11-15 21:32:34,644 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-11-15 21:32:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-11-15 21:32:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2019-11-15 21:32:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2019-11-15 21:32:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure strpbrk [2019-11-15 21:32:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2019-11-15 21:32:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2019-11-15 21:32:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure __strtok_r [2019-11-15 21:32:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure strtok_r [2019-11-15 21:32:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-11-15 21:32:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-11-15 21:32:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2019-11-15 21:32:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_r [2019-11-15 21:32:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure strerror_l [2019-11-15 21:32:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure __bzero [2019-11-15 21:32:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure bcopy [2019-11-15 21:32:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure bzero [2019-11-15 21:32:34,659 INFO L130 BoogieDeclarations]: Found specification of procedure bcmp [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure index [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure rindex [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2019-11-15 21:32:34,660 INFO L130 BoogieDeclarations]: Found specification of procedure strsignal [2019-11-15 21:32:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure __stpcpy [2019-11-15 21:32:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure stpcpy [2019-11-15 21:32:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure __stpncpy [2019-11-15 21:32:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure stpncpy [2019-11-15 21:32:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure c1 [2019-11-15 21:32:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure c2 [2019-11-15 21:32:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:32:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2019-11-15 21:32:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-11-15 21:32:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 21:32:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:32:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:32:34,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:32:34,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 21:32:35,462 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:32:35,462 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-15 21:32:35,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:32:35 BoogieIcfgContainer [2019-11-15 21:32:35,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:32:35,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:32:35,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:32:35,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:32:35,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:32:33" (1/3) ... [2019-11-15 21:32:35,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71e7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:32:35, skipping insertion in model container [2019-11-15 21:32:35,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:32:34" (2/3) ... [2019-11-15 21:32:35,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e71e7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:32:35, skipping insertion in model container [2019-11-15 21:32:35,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:32:35" (3/3) ... [2019-11-15 21:32:35,478 INFO L109 eAbstractionObserver]: Analyzing ICFG bftpd_3.i [2019-11-15 21:32:35,487 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:32:35,501 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-11-15 21:32:35,510 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-11-15 21:32:35,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:32:35,528 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 21:32:35,528 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:32:35,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:32:35,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:32:35,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:32:35,529 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:32:35,529 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:32:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2019-11-15 21:32:35,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 21:32:35,560 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:35,560 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:35,563 INFO L410 AbstractCegarLoop]: === Iteration 1 === [parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr0REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c2Err6ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE, c2Err7ASSERT_VIOLATIONMEMORY_FREE, c2Err8ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 21:32:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:35,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1583989328, now seen corresponding path program 1 times [2019-11-15 21:32:35,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:35,578 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813991614] [2019-11-15 21:32:35,578 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:35,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:35,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:36,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:32:36,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813991614] [2019-11-15 21:32:36,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:32:36,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:32:36,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529530646] [2019-11-15 21:32:36,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:32:36,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:32:36,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:32:36,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:32:36,096 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2019-11-15 21:32:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:32:36,612 INFO L93 Difference]: Finished difference Result 97 states and 122 transitions. [2019-11-15 21:32:36,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:32:36,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-15 21:32:36,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:32:36,625 INFO L225 Difference]: With dead ends: 97 [2019-11-15 21:32:36,626 INFO L226 Difference]: Without dead ends: 88 [2019-11-15 21:32:36,627 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 [2019-11-15 21:32:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-11-15 21:32:36,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2019-11-15 21:32:36,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-11-15 21:32:36,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 110 transitions. [2019-11-15 21:32:36,687 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 110 transitions. Word has length 9 [2019-11-15 21:32:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:32:36,688 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 110 transitions. [2019-11-15 21:32:36,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:32:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 110 transitions. [2019-11-15 21:32:36,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 21:32:36,692 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:36,692 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:36,693 INFO L410 AbstractCegarLoop]: === Iteration 2 === [parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr0REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c2Err6ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE, c2Err7ASSERT_VIOLATIONMEMORY_FREE, c2Err8ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 21:32:36,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:36,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1583989329, now seen corresponding path program 1 times [2019-11-15 21:32:36,694 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:36,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890214508] [2019-11-15 21:32:36,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:36,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:36,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:32:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:32:37,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890214508] [2019-11-15 21:32:37,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:32:37,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:32:37,033 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174304745] [2019-11-15 21:32:37,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 21:32:37,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:32:37,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 21:32:37,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 21:32:37,036 INFO L87 Difference]: Start difference. First operand 84 states and 110 transitions. Second operand 6 states. [2019-11-15 21:32:37,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:32:37,974 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2019-11-15 21:32:37,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:32:37,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-15 21:32:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:32:37,978 INFO L225 Difference]: With dead ends: 165 [2019-11-15 21:32:37,979 INFO L226 Difference]: Without dead ends: 165 [2019-11-15 21:32:37,980 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-15 21:32:37,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-15 21:32:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 134. [2019-11-15 21:32:38,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-15 21:32:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2019-11-15 21:32:38,019 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 192 transitions. Word has length 9 [2019-11-15 21:32:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:32:38,019 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 192 transitions. [2019-11-15 21:32:38,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 21:32:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 192 transitions. [2019-11-15 21:32:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 21:32:38,020 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:32:38,020 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:32:38,021 INFO L410 AbstractCegarLoop]: === Iteration 3 === [parse_inputErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr9REQUIRES_VIOLATION, parse_inputErr8REQUIRES_VIOLATION, parse_inputErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr6REQUIRES_VIOLATION, parse_inputErr1REQUIRES_VIOLATION, parse_inputErr0REQUIRES_VIOLATION, parse_inputErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, parse_inputErr7REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, c2Err6ASSERT_VIOLATIONMEMORY_FREE, c2Err0ASSERT_VIOLATIONMEMORY_FREE, c2Err7ASSERT_VIOLATIONMEMORY_FREE, c2Err8ASSERT_VIOLATIONMEMORY_FREE, c2Err5ASSERT_VIOLATIONMEMORY_FREE, c2Err1ASSERT_VIOLATIONMEMORY_FREE, c2Err2ASSERT_VIOLATIONMEMORY_FREE, c2Err4ASSERT_VIOLATIONMEMORY_FREE, c2Err3ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-15 21:32:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:32:38,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1859028932, now seen corresponding path program 1 times [2019-11-15 21:32:38,022 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:32:38,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941931635] [2019-11-15 21:32:38,022 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:38,023 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:32:38,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:32:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:32:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:32:38,185 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:32:38,185 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:32:38,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:32:38 BoogieIcfgContainer [2019-11-15 21:32:38,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:32:38,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:32:38,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:32:38,219 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:32:38,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:32:35" (3/4) ... [2019-11-15 21:32:38,222 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 21:32:38,278 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec2fdf97-1c11-4d8d-b187-e0ee0075a13b/bin/uautomizer/witness.graphml [2019-11-15 21:32:38,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:32:38,280 INFO L168 Benchmark]: Toolchain (without parser) took 4336.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 939.4 MB in the beginning and 1.0 GB in the end (delta: -110.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:38,281 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:32:38,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:38,282 INFO L168 Benchmark]: Boogie Preprocessor took 65.27 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. [2019-11-15 21:32:38,283 INFO L168 Benchmark]: RCFGBuilder took 913.48 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: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:38,284 INFO L168 Benchmark]: TraceAbstraction took 2753.89 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:38,284 INFO L168 Benchmark]: Witness Printer took 60.05 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:32:38,288 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 540.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.27 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 913.48 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: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2753.89 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: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Witness Printer took 60.05 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: 1.7 MB). Peak memory consumption was 1.7 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: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 371 SDslu, 50 SDs, 0 SdLazy, 311 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s 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...