./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a7913009f557bb817682ec51a8256f9af3209cb5eeff0346609b07f1bcced57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:10:31,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:10:31,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:10:31,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:10:31,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:10:31,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:10:31,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:10:31,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:10:31,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:10:31,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:10:31,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:10:31,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:10:31,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:10:31,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:10:31,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:10:31,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:10:31,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:10:31,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:10:31,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:10:31,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:10:31,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:10:31,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:10:31,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:10:31,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:10:31,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:10:31,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:10:31,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:10:31,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:10:31,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:10:31,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:10:31,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:10:31,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:10:31,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:10:31,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:10:31,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:10:31,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:10:31,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:10:31,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:10:31,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:10:31,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:10:31,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:10:31,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 11:10:32,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:10:32,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:10:32,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:10:32,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:10:32,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:10:32,007 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:10:32,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:10:32,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:10:32,009 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:10:32,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:10:32,009 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:10:32,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:10:32,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:10:32,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:10:32,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:10:32,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:10:32,011 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:10:32,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:10:32,011 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:10:32,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:10:32,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:10:32,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:10:32,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:10:32,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:10:32,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:10:32,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:10:32,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:10:32,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:10:32,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:10:32,014 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:10:32,015 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:10:32,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:10:32,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a7913009f557bb817682ec51a8256f9af3209cb5eeff0346609b07f1bcced57 [2022-11-20 11:10:32,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:10:32,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:10:32,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:10:32,380 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:10:32,381 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:10:32,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i [2022-11-20 11:10:35,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:10:36,474 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:10:36,475 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i [2022-11-20 11:10:36,498 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data/f9c111fe7/37565a3e63d347eca9aae9356fb0c5bf/FLAGb863c165a [2022-11-20 11:10:36,527 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data/f9c111fe7/37565a3e63d347eca9aae9356fb0c5bf [2022-11-20 11:10:36,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:10:36,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:10:36,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:10:36,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:10:36,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:10:36,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:36" (1/1) ... [2022-11-20 11:10:36,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ed3d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:36, skipping insertion in model container [2022-11-20 11:10:36,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:36" (1/1) ... [2022-11-20 11:10:36,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:10:36,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:10:37,110 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:10:37,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:10:37,853 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:10:37,873 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:10:37,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:10:38,201 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:10:38,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38 WrapperNode [2022-11-20 11:10:38,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:10:38,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:10:38,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:10:38,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:10:38,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,314 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-11-20 11:10:38,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:10:38,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:10:38,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:10:38,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:10:38,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,378 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:10:38,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:10:38,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:10:38,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:10:38,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (1/1) ... [2022-11-20 11:10:38,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:10:38,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:10:38,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:10:38,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:10:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 11:10:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 11:10:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 11:10:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:10:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 11:10:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:10:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:10:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:10:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:10:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 11:10:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:10:38,674 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:10:38,677 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:10:38,954 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:10:38,972 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:10:38,972 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:10:38,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:38 BoogieIcfgContainer [2022-11-20 11:10:38,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:10:38,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:10:38,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:10:38,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:10:38,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:10:36" (1/3) ... [2022-11-20 11:10:38,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6382e972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:10:38, skipping insertion in model container [2022-11-20 11:10:38,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:38" (2/3) ... [2022-11-20 11:10:38,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6382e972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:10:38, skipping insertion in model container [2022-11-20 11:10:38,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:38" (3/3) ... [2022-11-20 11:10:38,996 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_42_bad.i [2022-11-20 11:10:39,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:10:39,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:10:39,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:10:39,118 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d8ad83f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:10:39,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 11:10:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:10:39,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 11:10:39,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:10:39,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:10:39,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 11:10:39,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:10:39,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-11-20 11:10:39,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:10:39,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054537975] [2022-11-20 11:10:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:10:39,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:10:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:10:39,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:10:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:10:39,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:10:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:10:39,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054537975] [2022-11-20 11:10:39,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054537975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:10:39,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:10:39,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:10:39,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032042081] [2022-11-20 11:10:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:10:39,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:10:39,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:10:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:10:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:10:39,571 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:10:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:10:39,613 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-20 11:10:39,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:10:39,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-20 11:10:39,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:10:39,626 INFO L225 Difference]: With dead ends: 23 [2022-11-20 11:10:39,626 INFO L226 Difference]: Without dead ends: 15 [2022-11-20 11:10:39,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:10:39,634 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:10:39,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 32 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:10:39,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-20 11:10:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-20 11:10:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:10:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-20 11:10:39,685 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-20 11:10:39,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:10:39,688 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-20 11:10:39,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:10:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-20 11:10:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 11:10:39,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:10:39,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:10:39,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:10:39,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 11:10:39,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:10:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash -509435128, now seen corresponding path program 1 times [2022-11-20 11:10:39,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:10:39,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281782505] [2022-11-20 11:10:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:10:39,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:10:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:10:39,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:10:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:10:39,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:10:39,825 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:10:39,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-20 11:10:39,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-20 11:10:39,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:10:39,836 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:10:39,840 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:10:39,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:10:39 BoogieIcfgContainer [2022-11-20 11:10:39,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:10:39,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:10:39,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:10:39,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:10:39,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:38" (3/4) ... [2022-11-20 11:10:39,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:10:39,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:10:39,889 INFO L158 Benchmark]: Toolchain (without parser) took 3356.72ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 121.7MB in the beginning and 115.7MB in the end (delta: 6.1MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2022-11-20 11:10:39,890 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:10:39,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1669.49ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 121.7MB in the beginning and 169.1MB in the end (delta: -47.4MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2022-11-20 11:10:39,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.18ms. Allocated memory is still 203.4MB. Free memory was 169.1MB in the beginning and 166.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:10:39,896 INFO L158 Benchmark]: Boogie Preprocessor took 76.30ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 164.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:10:39,897 INFO L158 Benchmark]: RCFGBuilder took 582.10ms. Allocated memory is still 203.4MB. Free memory was 164.9MB in the beginning and 151.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:10:39,897 INFO L158 Benchmark]: TraceAbstraction took 892.81ms. Allocated memory is still 203.4MB. Free memory was 150.3MB in the beginning and 116.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 11:10:39,898 INFO L158 Benchmark]: Witness Printer took 11.82ms. Allocated memory is still 203.4MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:10:39,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1669.49ms. Allocated memory was 157.3MB in the beginning and 203.4MB in the end (delta: 46.1MB). Free memory was 121.7MB in the beginning and 169.1MB in the end (delta: -47.4MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.18ms. Allocated memory is still 203.4MB. Free memory was 169.1MB in the beginning and 166.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.30ms. Allocated memory is still 203.4MB. Free memory was 166.0MB in the beginning and 164.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.10ms. Allocated memory is still 203.4MB. Free memory was 164.9MB in the beginning and 151.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 892.81ms. Allocated memory is still 203.4MB. Free memory was 150.3MB in the beginning and 116.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 11.82ms. Allocated memory is still 203.4MB. Free memory was 116.7MB in the beginning and 115.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741826:1073741831}, argv={1073741826:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; VAL [\old(data)=0, \result=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data - 1 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 11:10:39,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a7913009f557bb817682ec51a8256f9af3209cb5eeff0346609b07f1bcced57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:10:42,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:10:42,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:10:42,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:10:42,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:10:42,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:10:42,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:10:42,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:10:42,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:10:42,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:10:42,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:10:42,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:10:42,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:10:42,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:10:42,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:10:42,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:10:42,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:10:42,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:10:42,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:10:42,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:10:42,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:10:42,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:10:42,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:10:42,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:10:42,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:10:42,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:10:42,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:10:42,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:10:42,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:10:42,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:10:42,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:10:42,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:10:42,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:10:42,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:10:42,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:10:42,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:10:42,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:10:42,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:10:42,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:10:42,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:10:42,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:10:42,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-20 11:10:42,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:10:42,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:10:42,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:10:42,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:10:42,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:10:42,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:10:42,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:10:42,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:10:42,954 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:10:42,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:10:42,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:10:42,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:10:42,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:10:42,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:10:42,957 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:10:42,958 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:10:42,958 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:10:42,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:10:42,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:10:42,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:10:42,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:10:42,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:10:42,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:10:42,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:10:42,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:10:42,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:10:42,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:10:42,961 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:10:42,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:10:42,961 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:10:42,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:10:42,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:10:42,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:10:42,963 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a7913009f557bb817682ec51a8256f9af3209cb5eeff0346609b07f1bcced57 [2022-11-20 11:10:43,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:10:43,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:10:43,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:10:43,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:10:43,475 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:10:43,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i [2022-11-20 11:10:46,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:10:47,425 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:10:47,426 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_bad.i [2022-11-20 11:10:47,466 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data/ea75ab528/4ef5657d3901422dbad718fb92cb1569/FLAG29aea9ff1 [2022-11-20 11:10:47,489 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/data/ea75ab528/4ef5657d3901422dbad718fb92cb1569 [2022-11-20 11:10:47,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:10:47,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:10:47,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:10:47,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:10:47,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:10:47,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:47" (1/1) ... [2022-11-20 11:10:47,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3396dea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:47, skipping insertion in model container [2022-11-20 11:10:47,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:47" (1/1) ... [2022-11-20 11:10:47,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:10:47,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:10:48,068 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:10:48,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:10:48,716 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:10:48,763 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:10:48,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:10:49,068 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:10:49,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49 WrapperNode [2022-11-20 11:10:49,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:10:49,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:10:49,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:10:49,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:10:49,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,154 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-20 11:10:49,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:10:49,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:10:49,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:10:49,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:10:49,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:10:49,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:10:49,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:10:49,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:10:49,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (1/1) ... [2022-11-20 11:10:49,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:10:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:10:49,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:10:49,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:10:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 11:10:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 11:10:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 11:10:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:10:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:10:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:10:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:10:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:10:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:10:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 11:10:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:10:49,580 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:10:49,582 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:10:49,827 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:10:49,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:10:49,835 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:10:49,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:49 BoogieIcfgContainer [2022-11-20 11:10:49,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:10:49,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:10:49,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:10:49,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:10:49,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:10:47" (1/3) ... [2022-11-20 11:10:49,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f65097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:10:49, skipping insertion in model container [2022-11-20 11:10:49,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:49" (2/3) ... [2022-11-20 11:10:49,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f65097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:10:49, skipping insertion in model container [2022-11-20 11:10:49,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:49" (3/3) ... [2022-11-20 11:10:49,848 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_42_bad.i [2022-11-20 11:10:49,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:10:49,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-20 11:10:49,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f65097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:10:49, skipping insertion in model container [2022-11-20 11:10:49,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:10:49,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:10:49,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:10:49,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:10:49,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:10:49" (3/3) ... [2022-11-20 11:10:49,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:10:49,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 11:10:49,893 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 11:10:49,893 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 11:10:49,893 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:10:49,894 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:10:49,938 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:10:49,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:10:49,944 INFO L158 Benchmark]: Toolchain (without parser) took 2446.37ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.3MB in the beginning and 44.3MB in the end (delta: -5.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-20 11:10:49,947 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:10:49,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1573.09ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.1MB in the beginning and 47.4MB in the end (delta: -8.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-20 11:10:49,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.96ms. Allocated memory is still 79.7MB. Free memory was 47.4MB in the beginning and 44.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:10:49,950 INFO L158 Benchmark]: Boogie Preprocessor took 68.73ms. Allocated memory is still 79.7MB. Free memory was 44.1MB in the beginning and 42.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:10:49,950 INFO L158 Benchmark]: RCFGBuilder took 611.68ms. Allocated memory is still 79.7MB. Free memory was 42.4MB in the beginning and 50.1MB in the end (delta: -7.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-20 11:10:49,951 INFO L158 Benchmark]: TraceAbstraction took 34.00ms. Allocated memory is still 79.7MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:10:49,951 INFO L158 Benchmark]: Witness Printer took 63.77ms. Allocated memory is still 79.7MB. Free memory was 47.3MB in the beginning and 44.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:10:49,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1573.09ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.1MB in the beginning and 47.4MB in the end (delta: -8.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.96ms. Allocated memory is still 79.7MB. Free memory was 47.4MB in the beginning and 44.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.73ms. Allocated memory is still 79.7MB. Free memory was 44.1MB in the beginning and 42.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.68ms. Allocated memory is still 79.7MB. Free memory was 42.4MB in the beginning and 50.1MB in the end (delta: -7.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 34.00ms. Allocated memory is still 79.7MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.77ms. Allocated memory is still 79.7MB. Free memory was 47.3MB in the beginning and 44.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-20 11:10:49,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b65b870-5688-4f2c-a35e-e4a5bd0b6f9a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE