./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/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 7354a3a47c288bc420443262c04c6da582043077 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-09 12:39:36,880 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:39:36,881 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:39:36,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:39:36,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:39:36,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:39:36,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:39:36,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:39:36,892 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:39:36,893 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:39:36,894 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:39:36,894 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:39:36,895 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:39:36,895 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:39:36,896 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:39:36,897 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:39:36,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:39:36,899 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:39:36,900 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:39:36,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:39:36,902 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:39:36,903 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:39:36,905 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:39:36,905 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:39:36,905 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:39:36,906 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:39:36,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:39:36,907 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:39:36,908 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:39:36,909 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:39:36,909 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:39:36,909 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:39:36,909 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:39:36,910 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:39:36,910 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:39:36,911 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:39:36,911 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-09 12:39:36,919 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:39:36,919 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:39:36,919 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:39:36,919 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:39:36,920 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 12:39:36,920 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 12:39:36,920 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 12:39:36,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:39:36,920 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:39:36,920 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 12:39:36,920 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 12:39:36,921 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:39:36,921 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:39:36,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:39:36,922 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:39:36,922 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:39:36,922 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 12:39:36,922 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:39:36,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/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 -> 7354a3a47c288bc420443262c04c6da582043077 [2018-12-09 12:39:36,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:39:36,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:39:36,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:39:36,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:39:36,953 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:39:36,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/../../sv-benchmarks/c/list-ext-properties/960521-1_1_false-valid-deref.i [2018-12-09 12:39:36,987 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/data/f816a6ad7/7c1ad92907c744aa84ff2e2af8d8bd9e/FLAG57b052318 [2018-12-09 12:39:37,423 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:39:37,424 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/sv-benchmarks/c/list-ext-properties/960521-1_1_false-valid-deref.i [2018-12-09 12:39:37,429 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/data/f816a6ad7/7c1ad92907c744aa84ff2e2af8d8bd9e/FLAG57b052318 [2018-12-09 12:39:37,437 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/data/f816a6ad7/7c1ad92907c744aa84ff2e2af8d8bd9e [2018-12-09 12:39:37,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:39:37,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-09 12:39:37,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:39:37,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:39:37,442 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:39:37,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72da7353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37, skipping insertion in model container [2018-12-09 12:39:37,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:39:37,466 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:39:37,600 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:39:37,639 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:39:37,661 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:39:37,691 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:39:37,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37 WrapperNode [2018-12-09 12:39:37,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:39:37,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:39:37,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:39:37,692 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:39:37,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... [2018-12-09 12:39:37,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:39:37,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:39:37,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:39:37,725 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:39:37,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/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 [2018-12-09 12:39:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:39:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:39:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-12-09 12:39:37,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-09 12:39:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-09 12:39:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-09 12:39:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-09 12:39:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-09 12:39:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-09 12:39:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 12:39:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 12:39:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:39:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:39:37,971 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:39:37,971 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-09 12:39:37,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:39:37 BoogieIcfgContainer [2018-12-09 12:39:37,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:39:37,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:39:37,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:39:37,974 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:39:37,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:39:37" (1/3) ... [2018-12-09 12:39:37,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd596fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:39:37, skipping insertion in model container [2018-12-09 12:39:37,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:39:37" (2/3) ... [2018-12-09 12:39:37,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd596fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:39:37, skipping insertion in model container [2018-12-09 12:39:37,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:39:37" (3/3) ... [2018-12-09 12:39:37,976 INFO L112 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-deref.i [2018-12-09 12:39:37,982 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:39:37,987 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-12-09 12:39:37,997 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-12-09 12:39:38,013 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 12:39:38,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:39:38,014 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 12:39:38,014 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:39:38,014 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:39:38,014 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:39:38,014 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:39:38,014 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:39:38,014 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:39:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-09 12:39:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 12:39:38,030 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,031 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,032 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,036 INFO L82 PathProgramCache]: Analyzing trace with hash -375831319, now seen corresponding path program 1 times [2018-12-09 12:39:38,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:39:38,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:39:38,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 12:39:38,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 12:39:38,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:39:38,122 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-09 12:39:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:38,133 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2018-12-09 12:39:38,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 12:39:38,133 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-09 12:39:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:38,139 INFO L225 Difference]: With dead ends: 54 [2018-12-09 12:39:38,139 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 12:39:38,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:39:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 12:39:38,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-09 12:39:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 12:39:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-12-09 12:39:38,160 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 9 [2018-12-09 12:39:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:38,161 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-12-09 12:39:38,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 12:39:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-12-09 12:39:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 12:39:38,161 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,161 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,161 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1233916652, now seen corresponding path program 1 times [2018-12-09 12:39:38,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:39:38,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:39:38,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:39:38,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:39:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:39:38,200 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand 3 states. [2018-12-09 12:39:38,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:38,221 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-12-09 12:39:38,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:39:38,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 12:39:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:38,222 INFO L225 Difference]: With dead ends: 50 [2018-12-09 12:39:38,222 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 12:39:38,223 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:39:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 12:39:38,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 12:39:38,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 12:39:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-12-09 12:39:38,227 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 10 [2018-12-09 12:39:38,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:38,228 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-12-09 12:39:38,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:39:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-12-09 12:39:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 12:39:38,228 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,228 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,229 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1233916653, now seen corresponding path program 1 times [2018-12-09 12:39:38,229 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:39:38,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:39:38,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:39:38,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:39:38,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:39:38,277 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 4 states. [2018-12-09 12:39:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:38,316 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2018-12-09 12:39:38,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 12:39:38,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-09 12:39:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:38,316 INFO L225 Difference]: With dead ends: 49 [2018-12-09 12:39:38,317 INFO L226 Difference]: Without dead ends: 49 [2018-12-09 12:39:38,317 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:39:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-09 12:39:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-12-09 12:39:38,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-09 12:39:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-12-09 12:39:38,320 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 10 [2018-12-09 12:39:38,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:38,320 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-12-09 12:39:38,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:39:38,320 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-12-09 12:39:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 12:39:38,320 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,320 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,320 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,321 INFO L82 PathProgramCache]: Analyzing trace with hash 393519525, now seen corresponding path program 1 times [2018-12-09 12:39:38,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:39:38,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:39:38,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:39:38,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:39:38,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:39:38,355 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 4 states. [2018-12-09 12:39:38,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:38,381 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-12-09 12:39:38,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:39:38,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-12-09 12:39:38,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:38,382 INFO L225 Difference]: With dead ends: 46 [2018-12-09 12:39:38,382 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 12:39:38,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:39:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 12:39:38,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 12:39:38,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 12:39:38,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-12-09 12:39:38,384 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 15 [2018-12-09 12:39:38,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:38,385 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-12-09 12:39:38,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:39:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-12-09 12:39:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 12:39:38,385 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,385 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,385 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,386 INFO L82 PathProgramCache]: Analyzing trace with hash 393519526, now seen corresponding path program 1 times [2018-12-09 12:39:38,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:39:38,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 12:39:38,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 12:39:38,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 12:39:38,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:39:38,462 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 6 states. [2018-12-09 12:39:38,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:38,519 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-12-09 12:39:38,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:39:38,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-09 12:39:38,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:38,521 INFO L225 Difference]: With dead ends: 54 [2018-12-09 12:39:38,521 INFO L226 Difference]: Without dead ends: 54 [2018-12-09 12:39:38,522 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:39:38,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-09 12:39:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2018-12-09 12:39:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 12:39:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-12-09 12:39:38,525 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 15 [2018-12-09 12:39:38,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:38,525 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-12-09 12:39:38,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 12:39:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-12-09 12:39:38,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 12:39:38,526 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,526 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,527 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1920516194, now seen corresponding path program 1 times [2018-12-09 12:39:38,527 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:39:38,566 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:39:38,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:39:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 12:39:38,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2018-12-09 12:39:38,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 12:39:38,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 12:39:38,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-09 12:39:38,635 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 8 states. [2018-12-09 12:39:38,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:38,716 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2018-12-09 12:39:38,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:39:38,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-09 12:39:38,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:38,717 INFO L225 Difference]: With dead ends: 80 [2018-12-09 12:39:38,717 INFO L226 Difference]: Without dead ends: 80 [2018-12-09 12:39:38,718 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-12-09 12:39:38,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-12-09 12:39:38,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 61. [2018-12-09 12:39:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-12-09 12:39:38,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-12-09 12:39:38,722 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 18 [2018-12-09 12:39:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:38,723 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-12-09 12:39:38,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 12:39:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-12-09 12:39:38,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 12:39:38,724 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:38,724 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:38,724 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:38,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:38,724 INFO L82 PathProgramCache]: Analyzing trace with hash -720258237, now seen corresponding path program 1 times [2018-12-09 12:39:38,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:38,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:38,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 12:39:38,795 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:39:38,795 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:39:38,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:38,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:39:38,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-09 12:39:38,875 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 12:39:38,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-12-09 12:39:38,886 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 19 [2018-12-09 12:39:38,887 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 12:39:38,892 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 12:39:38,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 12:39:38,900 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:28, output treesize:25 [2018-12-09 12:39:38,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:39:38,969 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:39:38,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2018-12-09 12:39:38,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 12:39:38,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 12:39:38,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-12-09 12:39:38,971 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 11 states. [2018-12-09 12:39:39,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:39,245 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2018-12-09 12:39:39,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 12:39:39,245 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-12-09 12:39:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:39,246 INFO L225 Difference]: With dead ends: 95 [2018-12-09 12:39:39,246 INFO L226 Difference]: Without dead ends: 95 [2018-12-09 12:39:39,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2018-12-09 12:39:39,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-09 12:39:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 63. [2018-12-09 12:39:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-09 12:39:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2018-12-09 12:39:39,249 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 20 [2018-12-09 12:39:39,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:39,249 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2018-12-09 12:39:39,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 12:39:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2018-12-09 12:39:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 12:39:39,250 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:39,250 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:39,250 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:39,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:39,251 INFO L82 PathProgramCache]: Analyzing trace with hash -275803729, now seen corresponding path program 1 times [2018-12-09 12:39:39,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:39,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:39,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:39,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:39,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:39:39,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 12:39:39,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:39:39,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:39:39,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 12:39:39,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 12:39:39,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 12:39:39,279 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 4 states. [2018-12-09 12:39:39,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:39:39,303 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2018-12-09 12:39:39,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 12:39:39,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-12-09 12:39:39,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:39:39,304 INFO L225 Difference]: With dead ends: 61 [2018-12-09 12:39:39,304 INFO L226 Difference]: Without dead ends: 61 [2018-12-09 12:39:39,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:39:39,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-12-09 12:39:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-12-09 12:39:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-12-09 12:39:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-12-09 12:39:39,307 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 22 [2018-12-09 12:39:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:39:39,307 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-12-09 12:39:39,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 12:39:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-12-09 12:39:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 12:39:39,308 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:39:39,308 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:39:39,308 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, fooErr3REQUIRES_VIOLATION, fooErr0REQUIRES_VIOLATION, mainErr7ASSERT_VIOLATIONMEMORY_FREE, mainErr8ASSERT_VIOLATIONMEMORY_FREE, mainErr6ASSERT_VIOLATIONMEMORY_FREE, mainErr9ASSERT_VIOLATIONMEMORY_FREE, mainErr11ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr10ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr12ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 12:39:39,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:39:39,308 INFO L82 PathProgramCache]: Analyzing trace with hash -275803728, now seen corresponding path program 1 times [2018-12-09 12:39:39,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:39:39,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:39:39,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:39,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:39:39,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:39:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:39:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:39:39,334 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 12:39:39,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:39:39 BoogieIcfgContainer [2018-12-09 12:39:39,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:39:39,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:39:39,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:39:39,354 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:39:39,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:39:37" (3/4) ... [2018-12-09 12:39:39,356 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 12:39:39,384 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e2656644-9a0a-4c34-9beb-6938caa693b8/bin-2019/uautomizer/witness.graphml [2018-12-09 12:39:39,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:39:39,385 INFO L168 Benchmark]: Toolchain (without parser) took 1945.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.9 MB in the beginning and 836.9 MB in the end (delta: 119.0 MB). Peak memory consumption was 265.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:39:39,386 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:39:39,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:39:39,386 INFO L168 Benchmark]: Boogie Preprocessor took 32.41 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. [2018-12-09 12:39:39,386 INFO L168 Benchmark]: RCFGBuilder took 246.81 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: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:39:39,387 INFO L168 Benchmark]: TraceAbstraction took 1381.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 836.9 MB in the end (delta: 250.0 MB). Peak memory consumption was 250.0 MB. Max. memory is 11.5 GB. [2018-12-09 12:39:39,387 INFO L168 Benchmark]: Witness Printer took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 836.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:39:39,388 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.9 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.41 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 246.81 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: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1381.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 836.9 MB in the end (delta: 250.0 MB). Peak memory consumption was 250.0 MB. Max. memory is 11.5 GB. * Witness Printer took 30.91 ms. Allocated memory is still 1.2 GB. Free memory is still 836.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L619] int *a, *b; [L620] int n; VAL [\old(a)=11, \old(a)=8, \old(b)=5, \old(b)=12, \old(n)=10, a={0:0}, b={0:0}, n=0] [L632] n = 1 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={0:0}, b={0:0}, n=1] [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] a = malloc(n * sizeof(*a)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, b++={9:0}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={9:0}, n=1] [L638] *b++ = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, b++={9:0}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={9:0}, n=1] [L639] CALL foo() VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, n=1] [L624] int i; [L625] i = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=0, n=1] [L625] COND TRUE i < n VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=0, n=1] [L626] a[i] = n VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=0, n=1] [L625] i++ VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=1, n=1] [L625] COND FALSE !(i < n) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=1, n=1] [L627] i = 0 VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=0, n=1] [L627] COND FALSE !(i < n - 1) VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, i=0, n=1] [L639] RET foo() VAL [\old(a)=0, \old(a)=0, \old(b)=0, \old(b)=0, \old(n)=0, a={7:0}, b={9:4}, malloc(n * sizeof(*a))={7:0}, malloc(n * sizeof(*b))={9:0}, n=1] [L640] b[-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 17 error locations. UNSAFE Result, 1.3s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 339 SDtfs, 463 SDslu, 461 SDs, 0 SdLazy, 471 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 59 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 147 ConstructedInterpolants, 9 QuantifiedInterpolants, 13352 SizeOfPredicates, 7 NumberOfNonLiveVariables, 260 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 9/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...