./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a --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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- 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-b5237d8 [2022-11-21 16:47:12,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:47:12,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:47:12,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:47:12,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:47:12,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:47:12,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:47:12,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:47:12,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:47:12,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:47:12,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:47:12,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:47:12,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:47:12,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:47:12,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:47:12,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:47:12,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:47:12,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:47:12,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:47:12,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:47:12,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:47:12,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:47:12,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:47:12,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:47:12,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:47:12,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:47:12,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:47:12,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:47:12,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:47:12,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:47:12,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:47:12,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:47:12,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:47:12,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:47:12,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:47:12,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:47:12,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:47:12,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:47:12,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:47:12,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:47:12,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:47:12,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 16:47:12,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:47:12,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:47:12,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:47:12,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:47:12,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:47:12,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:47:12,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:47:12,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:47:12,759 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:47:12,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:47:12,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:47:12,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:47:12,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:47:12,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:47:12,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:47:12,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:47:12,762 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:47:12,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:47:12,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:47:12,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:47:12,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:47:12,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:47:12,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:47:12,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:47:12,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:47:12,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:47:12,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:47:12,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:47:12,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:47:12,766 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:47:12,766 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:47:12,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:47:12,767 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_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2022-11-21 16:47:13,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:47:13,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:47:13,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:47:13,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:47:13,054 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:47:13,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2022-11-21 16:47:16,214 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:47:16,677 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:47:16,678 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2022-11-21 16:47:16,717 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data/678ccf991/17742b942405467f88a39726a3fd5f25/FLAGe9ac605af [2022-11-21 16:47:16,742 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data/678ccf991/17742b942405467f88a39726a3fd5f25 [2022-11-21 16:47:16,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:47:16,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:47:16,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:47:16,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:47:16,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:47:16,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:16" (1/1) ... [2022-11-21 16:47:16,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62919adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:16, skipping insertion in model container [2022-11-21 16:47:16,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:16" (1/1) ... [2022-11-21 16:47:16,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:47:16,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:47:17,256 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:47:17,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:47:17,899 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:47:17,933 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:47:18,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:47:18,182 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:47:18,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18 WrapperNode [2022-11-21 16:47:18,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:47:18,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:47:18,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:47:18,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:47:18,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,238 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-11-21 16:47:18,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:47:18,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:47:18,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:47:18,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:47:18,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:47:18,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:47:18,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:47:18,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:47:18,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (1/1) ... [2022-11-21 16:47:18,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:47:18,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:18,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:47:18,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:47:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 16:47:18,424 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 16:47:18,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 16:47:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:47:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 16:47:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:47:18,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:47:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:47:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:47:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 16:47:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:47:18,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:47:18,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:47:18,784 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:47:18,798 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:47:18,802 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:47:18,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:18 BoogieIcfgContainer [2022-11-21 16:47:18,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:47:18,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:47:18,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:47:18,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:47:18,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:47:16" (1/3) ... [2022-11-21 16:47:18,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6b8f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:47:18, skipping insertion in model container [2022-11-21 16:47:18,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:18" (2/3) ... [2022-11-21 16:47:18,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6b8f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:47:18, skipping insertion in model container [2022-11-21 16:47:18,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:18" (3/3) ... [2022-11-21 16:47:18,814 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2022-11-21 16:47:18,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:47:18,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 16:47:18,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:47:18,923 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;@5daff9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:47:18,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 16:47:18,928 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) [2022-11-21 16:47:18,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:47:18,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:18,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:47:18,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 16:47:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:18,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-11-21 16:47:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:18,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418222021] [2022-11-21 16:47:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:18,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:47:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:47:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:47:19,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:47:19,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418222021] [2022-11-21 16:47:19,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418222021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:47:19,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:47:19,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:47:19,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956646400] [2022-11-21 16:47:19,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:47:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:47:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:47:19,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:47:19,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:47:19,574 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 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-21 16:47:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:47:19,626 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-21 16:47:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:47:19,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-11-21 16:47:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:47:19,637 INFO L225 Difference]: With dead ends: 23 [2022-11-21 16:47:19,638 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 16:47:19,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:47:19,646 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:47:19,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 52 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:47:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 16:47:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-21 16:47:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-21 16:47:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-21 16:47:19,693 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-21 16:47:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:47:19,694 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-21 16:47:19,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-21 16:47:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-21 16:47:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:47:19,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:47:19,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:47:19,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:47:19,701 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 16:47:19,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:47:19,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-11-21 16:47:19,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:47:19,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443550111] [2022-11-21 16:47:19,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:47:19,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:47:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:47:19,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:47:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:47:19,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:47:19,829 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:47:19,835 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-21 16:47:19,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-21 16:47:19,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:47:19,843 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 16:47:19,847 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:47:19,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:47:19 BoogieIcfgContainer [2022-11-21 16:47:19,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:47:19,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:47:19,882 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:47:19,882 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:47:19,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:18" (3/4) ... [2022-11-21 16:47:19,887 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:47:19,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:47:19,888 INFO L158 Benchmark]: Toolchain (without parser) took 3136.80ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 79.3MB in the end (delta: 20.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-11-21 16:47:19,888 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:47:19,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1427.50ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 82.5MB in the end (delta: 16.9MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2022-11-21 16:47:19,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.92ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 79.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:47:19,890 INFO L158 Benchmark]: Boogie Preprocessor took 53.39ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 78.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:47:19,891 INFO L158 Benchmark]: RCFGBuilder took 497.86ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 65.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:47:19,891 INFO L158 Benchmark]: TraceAbstraction took 1074.23ms. Allocated memory is still 142.6MB. Free memory was 64.8MB in the beginning and 79.7MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:47:19,892 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 79.3MB in the end (delta: 445.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:47:19,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1427.50ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 82.5MB in the end (delta: 16.9MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.92ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 79.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.39ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 78.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.86ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 65.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1074.23ms. Allocated memory is still 142.6MB. Free memory was 64.8MB in the beginning and 79.7MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 79.3MB in the end (delta: 445.4kB). 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: 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_postdec_68_goodG2BData; VAL [CWE191_Integer_Underflow__int_fgets_postdec_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 [CWE191_Integer_Underflow__int_fgets_postdec_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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741827:1073741831}, argv={1073741827:1073741831}, CWE191_Integer_Underflow__int_fgets_postdec_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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_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_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, data=-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] - 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: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 [2022-11-21 16:47:19,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/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_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a --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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- 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-b5237d8 [2022-11-21 16:47:22,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:47:22,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:47:22,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:47:22,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:47:22,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:47:22,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:47:22,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:47:22,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:47:22,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:47:22,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:47:22,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:47:22,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:47:22,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:47:22,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:47:22,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:47:22,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:47:22,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:47:22,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:47:22,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:47:22,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:47:22,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:47:22,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:47:22,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:47:22,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:47:22,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:47:22,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:47:22,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:47:22,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:47:22,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:47:22,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:47:22,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:47:22,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:47:22,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:47:22,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:47:22,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:47:22,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:47:22,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:47:22,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:47:22,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:47:22,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:47:22,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-21 16:47:22,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:47:22,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:47:22,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:47:22,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:47:22,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:47:22,818 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:47:22,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:47:22,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:47:22,819 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:47:22,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:47:22,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:47:22,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:47:22,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:47:22,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:47:22,822 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:47:22,822 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:47:22,822 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:47:22,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:47:22,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:47:22,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:47:22,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:47:22,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:47:22,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:47:22,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:47:22,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:47:22,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:47:22,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:47:22,826 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:47:22,826 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:47:22,826 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:47:22,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:47:22,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:47:22,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:47:22,827 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_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2022-11-21 16:47:23,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:47:23,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:47:23,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:47:23,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:47:23,310 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:47:23,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2022-11-21 16:47:26,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:47:27,033 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:47:27,034 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2022-11-21 16:47:27,064 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data/0dce35c23/d7965b19d98b4c7b96a2a36f964f12e8/FLAGb54aeb9b5 [2022-11-21 16:47:27,093 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/data/0dce35c23/d7965b19d98b4c7b96a2a36f964f12e8 [2022-11-21 16:47:27,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:47:27,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:47:27,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:47:27,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:47:27,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:47:27,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:27" (1/1) ... [2022-11-21 16:47:27,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647d562a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:27, skipping insertion in model container [2022-11-21 16:47:27,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:47:27" (1/1) ... [2022-11-21 16:47:27,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:47:27,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:47:27,686 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:47:28,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:47:28,579 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:47:28,614 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:47:28,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:47:28,835 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:47:28,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28 WrapperNode [2022-11-21 16:47:28,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:47:28,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:47:28,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:47:28,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:47:28,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,913 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-21 16:47:28,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:47:28,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:47:28,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:47:28,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:47:28,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,956 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:47:28,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:47:28,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:47:28,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:47:28,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (1/1) ... [2022-11-21 16:47:28,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:47:28,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:47:29,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:47:29,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:47:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 16:47:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 16:47:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 16:47:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:47:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:47:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:47:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:47:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:47:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:47:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 16:47:29,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 16:47:29,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:47:29,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:47:29,457 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:47:29,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:47:29,465 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:47:29,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:29 BoogieIcfgContainer [2022-11-21 16:47:29,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:47:29,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:47:29,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:47:29,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:47:29,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:47:27" (1/3) ... [2022-11-21 16:47:29,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e4c15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:47:29, skipping insertion in model container [2022-11-21 16:47:29,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:47:28" (2/3) ... [2022-11-21 16:47:29,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e4c15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:47:29, skipping insertion in model container [2022-11-21 16:47:29,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:29" (3/3) ... [2022-11-21 16:47:29,484 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2022-11-21 16:47:29,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:47:29,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-21 16:47:29,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e4c15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:47:29, skipping insertion in model container [2022-11-21 16:47:29,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:47:29,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:47:29,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:47:29,515 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:47:29,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:47:29" (3/3) ... [2022-11-21 16:47:29,520 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:47:29,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 16:47:29,535 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-21 16:47:29,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 16:47:29,536 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 16:47:29,537 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:47:29,607 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:47:29,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:47:29,613 INFO L158 Benchmark]: Toolchain (without parser) took 2514.15ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 39.0MB in the beginning and 71.8MB in the end (delta: -32.8MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,614 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:47:29,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1733.99ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 32.6MB in the end (delta: 6.1MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.13ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 32.6MB in the beginning and 92.7MB in the end (delta: -60.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,617 INFO L158 Benchmark]: Boogie Preprocessor took 47.63ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,617 INFO L158 Benchmark]: RCFGBuilder took 504.91ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 77.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,618 INFO L158 Benchmark]: TraceAbstraction took 36.53ms. Allocated memory is still 119.5MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,618 INFO L158 Benchmark]: Witness Printer took 96.86ms. Allocated memory is still 119.5MB. Free memory was 74.4MB in the beginning and 71.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:47:29,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1733.99ms. Allocated memory is still 83.9MB. Free memory was 38.7MB in the beginning and 32.6MB in the end (delta: 6.1MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.13ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 32.6MB in the beginning and 92.7MB in the end (delta: -60.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.63ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.91ms. Allocated memory is still 119.5MB. Free memory was 90.6MB in the beginning and 77.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 36.53ms. Allocated memory is still 119.5MB. Free memory was 76.6MB in the beginning and 74.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 96.86ms. Allocated memory is still 119.5MB. Free memory was 74.4MB in the beginning and 71.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. 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! [2022-11-21 16:47:29,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82804f49-5a08-4664-a5ec-335d1267f3f3/bin/uautomizer-vX5HgA9Q3a/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