./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS --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 a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 --- 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-4e7fbc6 [2022-11-23 03:10:47,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:10:47,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:10:47,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:10:47,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:10:47,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:10:47,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:10:47,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:10:47,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:10:47,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:10:47,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:10:47,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:10:47,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:10:47,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:10:47,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:10:47,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:10:47,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:10:47,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:10:47,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:10:47,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:10:47,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:10:47,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:10:47,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:10:47,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:10:47,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:10:47,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:10:47,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:10:47,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:10:47,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:10:47,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:10:47,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:10:47,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:10:47,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:10:47,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:10:47,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:10:47,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:10:47,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:10:47,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:10:47,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:10:47,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:10:47,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:10:47,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:10:47,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:10:47,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:10:47,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:10:47,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:10:47,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:10:47,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:10:47,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:10:47,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:10:47,519 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:10:47,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:10:47,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:10:47,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:10:47,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:10:47,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:10:47,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:10:47,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:10:47,521 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:10:47,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:10:47,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:10:47,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:10:47,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:10:47,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:10:47,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:10:47,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:47,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:10:47,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:10:47,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:10:47,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:10:47,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:10:47,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:10:47,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:10:47,524 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:10:47,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:10:47,524 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 [2022-11-23 03:10:47,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:10:47,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:10:47,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:10:47,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:10:47,827 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:10:47,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2022-11-23 03:10:50,918 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:10:51,275 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:10:51,276 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2022-11-23 03:10:51,305 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data/2e7184d92/239bbd01741b47108ef45090f6ddaa45/FLAGf8e7050c7 [2022-11-23 03:10:51,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data/2e7184d92/239bbd01741b47108ef45090f6ddaa45 [2022-11-23 03:10:51,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:10:51,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:10:51,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:51,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:10:51,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:10:51,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:51" (1/1) ... [2022-11-23 03:10:51,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a0b423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:51, skipping insertion in model container [2022-11-23 03:10:51,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:51" (1/1) ... [2022-11-23 03:10:51,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:10:51,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:10:51,817 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:10:52,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:52,495 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:10:52,515 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:10:52,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:52,745 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:10:52,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52 WrapperNode [2022-11-23 03:10:52,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:52,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:52,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:10:52,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:10:52,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,816 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-11-23 03:10:52,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:52,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:10:52,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:10:52,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:10:52,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:10:52,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:10:52,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:10:52,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:10:52,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (1/1) ... [2022-11-23 03:10:52,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:52,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:52,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:52,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:10:52,969 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 03:10:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 03:10:52,970 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 03:10:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:10:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 03:10:52,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:10:52,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:10:52,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:10:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:10:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 03:10:52,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:10:53,164 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:10:53,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:10:53,331 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:10:53,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:10:53,337 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:10:53,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:53 BoogieIcfgContainer [2022-11-23 03:10:53,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:10:53,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:10:53,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:10:53,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:10:53,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:10:51" (1/3) ... [2022-11-23 03:10:53,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d2edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:53, skipping insertion in model container [2022-11-23 03:10:53,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:52" (2/3) ... [2022-11-23 03:10:53,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d2edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:10:53, skipping insertion in model container [2022-11-23 03:10:53,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:53" (3/3) ... [2022-11-23 03:10:53,349 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2022-11-23 03:10:53,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:10:53,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:10:53,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:10:53,420 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;@324c42c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:10:53,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:10:53,424 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) [2022-11-23 03:10:53,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:10:53,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:10:53,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:53,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:10:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-11-23 03:10:53,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:53,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037977851] [2022-11-23 03:10:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:53,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:53,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:10:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:53,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:10:53,651 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:10:53,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:10:53,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:10:53,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:10:53,659 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:10:53,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:10:53,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:10:53 BoogieIcfgContainer [2022-11-23 03:10:53,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:10:53,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:10:53,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:10:53,696 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:10:53,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:53" (3/4) ... [2022-11-23 03:10:53,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:10:53,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:10:53,701 INFO L158 Benchmark]: Toolchain (without parser) took 2372.15ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 58.9MB in the end (delta: 33.7MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2022-11-23 03:10:53,701 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:53,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1414.37ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 94.1MB in the end (delta: -1.4MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2022-11-23 03:10:53,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.65ms. Allocated memory is still 140.5MB. Free memory was 94.1MB in the beginning and 91.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:10:53,707 INFO L158 Benchmark]: Boogie Preprocessor took 55.65ms. Allocated memory is still 140.5MB. Free memory was 91.0MB in the beginning and 89.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:53,712 INFO L158 Benchmark]: RCFGBuilder took 466.19ms. Allocated memory is still 140.5MB. Free memory was 89.9MB in the beginning and 76.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 03:10:53,713 INFO L158 Benchmark]: TraceAbstraction took 352.99ms. Allocated memory is still 140.5MB. Free memory was 76.3MB in the beginning and 58.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 03:10:53,714 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 140.5MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:53,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 109.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1414.37ms. Allocated memory is still 140.5MB. Free memory was 92.7MB in the beginning and 94.1MB in the end (delta: -1.4MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.65ms. Allocated memory is still 140.5MB. Free memory was 94.1MB in the beginning and 91.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.65ms. Allocated memory is still 140.5MB. Free memory was 91.0MB in the beginning and 89.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.19ms. Allocated memory is still 140.5MB. Free memory was 89.9MB in the beginning and 76.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 352.99ms. Allocated memory is still 140.5MB. Free memory was 76.3MB in the beginning and 58.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 140.5MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_predec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData; [L1550] int CWE191_Integer_Underflow__int_fgets_predec_68_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [#in~argv={1073741827:1073741830}, argc=1073741828, argv={1073741827:1073741830}, CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741828] [L1574] CALL CWE191_Integer_Underflow__int_fgets_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE191_Integer_Underflow__int_fgets_predec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_predec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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] [L1585] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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: 1585]: 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-23 03:10:53,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS --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 a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 --- 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-4e7fbc6 [2022-11-23 03:10:56,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:10:56,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:10:56,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:10:56,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:10:56,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:10:56,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:10:56,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:10:56,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:10:56,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:10:56,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:10:56,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:10:56,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:10:56,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:10:56,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:10:56,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:10:56,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:10:56,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:10:56,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:10:56,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:10:56,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:10:56,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:10:56,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:10:56,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:10:56,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:10:56,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:10:56,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:10:56,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:10:56,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:10:56,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:10:56,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:10:56,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:10:56,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:10:56,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:10:56,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:10:56,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:10:56,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:10:56,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:10:56,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:10:56,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:10:56,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:10:56,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-23 03:10:56,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:10:56,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:10:56,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:10:56,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:10:56,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:10:56,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:10:56,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:10:56,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:10:56,410 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:10:56,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:10:56,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:10:56,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:10:56,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:10:56,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:10:56,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:10:56,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:10:56,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:10:56,413 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:10:56,413 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:10:56,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:10:56,414 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:10:56,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:10:56,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:10:56,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:10:56,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:10:56,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:10:56,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:10:56,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:10:56,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:10:56,416 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:10:56,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:10:56,417 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:10:56,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:10:56,417 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:10:56,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:10:56,418 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:10:56,418 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 [2022-11-23 03:10:56,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:10:56,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:10:56,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:10:56,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:10:56,882 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:10:56,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2022-11-23 03:11:00,183 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:11:00,633 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:11:00,634 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2022-11-23 03:11:00,665 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data/61f5aca8a/2e880a5a76a44bb7a0c49b535e8d6342/FLAG7082227f5 [2022-11-23 03:11:00,692 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/data/61f5aca8a/2e880a5a76a44bb7a0c49b535e8d6342 [2022-11-23 03:11:00,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:11:00,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:11:00,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:11:00,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:11:00,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:11:00,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:00" (1/1) ... [2022-11-23 03:11:00,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a02e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:00, skipping insertion in model container [2022-11-23 03:11:00,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:00" (1/1) ... [2022-11-23 03:11:00,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:11:00,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:11:01,166 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:11:01,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:11:01,738 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:11:01,758 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:11:01,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:11:01,980 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:11:01,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01 WrapperNode [2022-11-23 03:11:01,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:11:01,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:11:01,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:11:01,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:11:01,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,056 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-11-23 03:11:02,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:11:02,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:11:02,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:11:02,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:11:02,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:11:02,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:11:02,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:11:02,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:11:02,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (1/1) ... [2022-11-23 03:11:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:11:02,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:11:02,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:11:02,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:11:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 03:11:02,191 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 03:11:02,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 03:11:02,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:11:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 03:11:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:11:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:11:02,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:11:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:11:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 03:11:02,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 03:11:02,431 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:11:02,432 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:11:02,635 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:11:02,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:11:02,641 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:11:02,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:02 BoogieIcfgContainer [2022-11-23 03:11:02,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:11:02,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:11:02,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:11:02,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:11:02,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:11:00" (1/3) ... [2022-11-23 03:11:02,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413ecb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:02, skipping insertion in model container [2022-11-23 03:11:02,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:01" (2/3) ... [2022-11-23 03:11:02,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7413ecb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:02, skipping insertion in model container [2022-11-23 03:11:02,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:02" (3/3) ... [2022-11-23 03:11:02,651 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2022-11-23 03:11:02,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:11:02,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:11:02,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:11:02,733 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;@1ca17f1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:11:02,733 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:11:02,737 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) [2022-11-23 03:11:02,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:11:02,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:11:02,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:11:02,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:11:02,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:11:02,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-11-23 03:11:02,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:11:02,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73299520] [2022-11-23 03:11:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:11:02,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:11:02,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:11:02,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:11:02,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 03:11:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:11:02,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:11:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:11:03,067 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 03:11:03,069 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:11:03,071 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:11:03,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:11:03,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 03:11:03,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:11:03,286 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:11:03,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:11:03,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:11:03 BoogieIcfgContainer [2022-11-23 03:11:03,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:11:03,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:11:03,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:11:03,318 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:11:03,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:02" (3/4) ... [2022-11-23 03:11:03,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:11:03,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:11:03,324 INFO L158 Benchmark]: Toolchain (without parser) took 2622.46ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.5MB in the beginning and 64.1MB in the end (delta: -7.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-23 03:11:03,324 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 58.7MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:11:03,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1276.73ms. Allocated memory is still 81.8MB. Free memory was 56.5MB in the beginning and 36.8MB in the end (delta: 19.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-11-23 03:11:03,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.56ms. Allocated memory is still 81.8MB. Free memory was 36.8MB in the beginning and 33.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:11:03,326 INFO L158 Benchmark]: Boogie Preprocessor took 29.88ms. Allocated memory is still 81.8MB. Free memory was 33.5MB in the beginning and 31.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:11:03,326 INFO L158 Benchmark]: RCFGBuilder took 540.16ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 42.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 03:11:03,327 INFO L158 Benchmark]: TraceAbstraction took 672.61ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 41.4MB in the beginning and 64.6MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:11:03,328 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 98.6MB. Free memory was 64.6MB in the beginning and 64.1MB in the end (delta: 519.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:11:03,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 58.7MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1276.73ms. Allocated memory is still 81.8MB. Free memory was 56.5MB in the beginning and 36.8MB in the end (delta: 19.6MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.56ms. Allocated memory is still 81.8MB. Free memory was 36.8MB in the beginning and 33.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.88ms. Allocated memory is still 81.8MB. Free memory was 33.5MB in the beginning and 31.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 540.16ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 42.2MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 672.61ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 41.4MB in the beginning and 64.6MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 98.6MB. Free memory was 64.6MB in the beginning and 64.1MB in the end (delta: 519.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1549] int CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=12, argv={13:12}, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=12] [L1574] CALL CWE191_Integer_Underflow__int_fgets_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE191_Integer_Underflow__int_fgets_predec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_predec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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] [L1585] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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: 1585]: 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-23 03:11:03,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_809daa3a-3b71-4586-9094-45bbaea7bf81/bin/uautomizer-QkZJyEgLgS/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: UNKNOWN: Overapproximated counterexample