./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R --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 df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 --- 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-38b53e6 [2022-11-25 18:09:51,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:09:51,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:09:51,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:09:51,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:09:51,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:09:51,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:09:51,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:09:51,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:09:51,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:09:51,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:09:51,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:09:51,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:09:51,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:09:51,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:09:51,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:09:51,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:09:51,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:09:51,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:09:51,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:09:51,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:09:51,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:09:51,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:09:51,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:09:51,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:09:51,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:09:51,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:09:51,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:09:51,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:09:51,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:09:51,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:09:51,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:09:51,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:09:51,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:09:51,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:09:51,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:09:51,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:09:51,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:09:51,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:09:51,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:09:51,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:09:51,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 18:09:51,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:09:51,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:09:51,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:09:51,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:09:51,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:09:51,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:09:51,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:09:51,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:09:51,920 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:09:51,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:09:51,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:09:51,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:09:51,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:09:51,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:09:51,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:09:51,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:09:51,922 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:09:51,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:09:51,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:09:51,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:09:51,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:09:51,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:09:51,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:09:51,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:09:51,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:09:51,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:09:51,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:09:51,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:09:51,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:09:51,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:09:51,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:09:51,926 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:09:51,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:09:51,926 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_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 [2022-11-25 18:09:52,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:09:52,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:09:52,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:09:52,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:09:52,267 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:09:52,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-25 18:09:55,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:09:55,955 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:09:55,955 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-25 18:09:55,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data/6d20f7c82/f278ee22478d4aa88ef16ba47cab7d05/FLAG9d6b2f821 [2022-11-25 18:09:56,020 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data/6d20f7c82/f278ee22478d4aa88ef16ba47cab7d05 [2022-11-25 18:09:56,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:09:56,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:09:56,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:09:56,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:09:56,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:09:56,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:56" (1/1) ... [2022-11-25 18:09:56,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3847d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:56, skipping insertion in model container [2022-11-25 18:09:56,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:56" (1/1) ... [2022-11-25 18:09:56,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:09:56,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:09:56,625 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:09:57,318 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:09:57,324 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:09:57,326 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:09:57,336 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:09:57,337 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:09:57,364 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:09:57,368 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:09:57,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:09:57,385 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:09:57,418 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:09:57,505 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:09:57,507 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:09:57,509 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:09:57,511 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:09:57,512 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:09:57,517 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:09:57,518 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:09:57,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:09:57,673 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:09:57,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57 WrapperNode [2022-11-25 18:09:57,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:09:57,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:09:57,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:09:57,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:09:57,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,747 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-25 18:09:57,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:09:57,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:09:57,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:09:57,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:09:57,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,780 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:09:57,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:09:57,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:09:57,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:09:57,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (1/1) ... [2022-11-25 18:09:57,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:09:57,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:09:57,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:09:57,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:09:57,919 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 18:09:57,919 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 18:09:57,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 18:09:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:09:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 18:09:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:09:57,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:09:57,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:09:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:09:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 18:09:57,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:09:58,120 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:09:58,122 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:09:58,285 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:09:58,292 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:09:58,292 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:09:58,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:58 BoogieIcfgContainer [2022-11-25 18:09:58,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:09:58,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:09:58,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:09:58,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:09:58,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:09:56" (1/3) ... [2022-11-25 18:09:58,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b09809b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:09:58, skipping insertion in model container [2022-11-25 18:09:58,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:57" (2/3) ... [2022-11-25 18:09:58,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b09809b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:09:58, skipping insertion in model container [2022-11-25 18:09:58,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:58" (3/3) ... [2022-11-25 18:09:58,307 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-25 18:09:58,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:09:58,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 18:09:58,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:09:58,429 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;@3eef3668, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:09:58,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:09:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-11-25 18:09:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 18:09:58,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:58,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:58,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:09:58,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:58,455 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-25 18:09:58,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:58,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799841003] [2022-11-25 18:09:58,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:09:58,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:09:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:09:58,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:09:58,799 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:09:58,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 18:09:58,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 18:09:58,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:09:58,811 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:09:58,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:09:58,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:09:58 BoogieIcfgContainer [2022-11-25 18:09:58,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:09:58,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:09:58,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:09:58,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:09:58,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:58" (3/4) ... [2022-11-25 18:09:58,881 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:09:58,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:09:58,883 INFO L158 Benchmark]: Toolchain (without parser) took 2853.47ms. Allocated memory is still 140.5MB. Free memory was 93.5MB in the beginning and 51.0MB in the end (delta: 42.5MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2022-11-25 18:09:58,884 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:09:58,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1644.14ms. Allocated memory is still 140.5MB. Free memory was 93.5MB in the beginning and 86.0MB in the end (delta: 7.4MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-11-25 18:09:58,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.09ms. Allocated memory is still 140.5MB. Free memory was 86.0MB in the beginning and 83.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:09:58,888 INFO L158 Benchmark]: Boogie Preprocessor took 37.01ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 81.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:09:58,893 INFO L158 Benchmark]: RCFGBuilder took 509.33ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 69.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:09:58,894 INFO L158 Benchmark]: TraceAbstraction took 575.79ms. Allocated memory is still 140.5MB. Free memory was 68.5MB in the beginning and 51.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:09:58,896 INFO L158 Benchmark]: Witness Printer took 6.21ms. Allocated memory is still 140.5MB. Free memory was 51.7MB in the beginning and 51.0MB in the end (delta: 743.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:09:58,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1644.14ms. Allocated memory is still 140.5MB. Free memory was 93.5MB in the beginning and 86.0MB in the end (delta: 7.4MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.09ms. Allocated memory is still 140.5MB. Free memory was 86.0MB in the beginning and 83.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.01ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 81.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 509.33ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 69.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 575.79ms. Allocated memory is still 140.5MB. Free memory was 68.5MB in the beginning and 51.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.21ms. Allocated memory is still 140.5MB. Free memory was 51.7MB in the beginning and 51.0MB in the end (delta: 743.7kB). 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741830}, argv={1073741826:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_51b_badSink(data) [L1576] COND TRUE data < 0 VAL [\old(data)=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [\old(data)=-1073741825, data=-1073741825, 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: 1578]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=24occurred 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, 12 NumberOfCodeBlocks, 12 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 [2022-11-25 18:09:58,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R --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 df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 --- 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-38b53e6 [2022-11-25 18:10:01,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:10:01,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:10:01,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:10:01,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:10:01,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:10:01,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:10:01,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:10:01,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:10:01,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:10:01,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:10:01,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:10:01,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:10:01,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:10:01,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:10:01,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:10:01,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:10:01,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:10:01,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:10:01,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:10:01,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:10:01,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:10:01,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:10:01,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:10:01,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:10:01,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:10:01,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:10:01,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:10:01,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:10:01,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:10:01,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:10:01,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:10:01,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:10:01,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:10:01,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:10:01,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:10:01,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:10:01,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:10:01,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:10:01,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:10:01,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:10:01,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 18:10:01,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:10:01,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:10:01,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:10:01,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:10:01,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:10:01,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:10:01,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:10:01,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:10:01,953 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:10:01,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:10:01,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:10:01,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:10:01,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:10:01,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:10:01,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:10:01,956 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:10:01,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:10:01,957 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:10:01,957 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:10:01,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:10:01,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:10:01,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:10:01,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:10:01,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:10:01,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:10:01,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:10:01,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:10:01,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:10:01,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:10:01,960 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:10:01,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:10:01,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:10:01,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:10:01,962 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:10:01,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:10:01,962 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:10:01,963 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_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 [2022-11-25 18:10:02,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:10:02,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:10:02,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:10:02,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:10:02,449 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:10:02,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-25 18:10:05,626 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:10:06,038 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:10:06,039 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-25 18:10:06,072 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data/d3b4e3544/399c9b64ce534576a9fd9b9109dbfa34/FLAG222a1459c [2022-11-25 18:10:06,088 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/data/d3b4e3544/399c9b64ce534576a9fd9b9109dbfa34 [2022-11-25 18:10:06,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:10:06,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:10:06,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:10:06,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:10:06,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:10:06,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:10:06" (1/1) ... [2022-11-25 18:10:06,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3adc5634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:06, skipping insertion in model container [2022-11-25 18:10:06,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:10:06" (1/1) ... [2022-11-25 18:10:06,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:10:06,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:10:06,636 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:10:07,448 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:10:07,457 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:10:07,460 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:10:07,469 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:10:07,470 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:10:07,508 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:10:07,514 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:10:07,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:10:07,539 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:10:07,589 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:10:07,670 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:10:07,672 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:10:07,675 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:10:07,677 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:10:07,679 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:10:07,688 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:10:07,692 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:10:07,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:10:07,824 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:10:07,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07 WrapperNode [2022-11-25 18:10:07,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:10:07,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:10:07,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:10:07,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:10:07,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,910 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-11-25 18:10:07,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:10:07,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:10:07,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:10:07,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:10:07,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:10:07,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:10:07,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:10:07,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:10:07,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (1/1) ... [2022-11-25 18:10:07,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:10:07,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:10:07,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:10:07,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:10:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 18:10:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 18:10:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 18:10:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:10:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:10:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:10:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:10:08,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:10:08,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:10:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 18:10:08,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 18:10:08,198 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:10:08,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:10:08,446 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:10:08,462 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:10:08,463 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:10:08,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:10:08 BoogieIcfgContainer [2022-11-25 18:10:08,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:10:08,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:10:08,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:10:08,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:10:08,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:10:06" (1/3) ... [2022-11-25 18:10:08,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476c6334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:10:08, skipping insertion in model container [2022-11-25 18:10:08,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:10:07" (2/3) ... [2022-11-25 18:10:08,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476c6334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:10:08, skipping insertion in model container [2022-11-25 18:10:08,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:10:08" (3/3) ... [2022-11-25 18:10:08,478 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-25 18:10:08,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:10:08,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 18:10:08,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:10:08,572 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;@4a168e1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:10:08,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:10:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-11-25 18:10:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 18:10:08,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:10:08,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:10:08,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:10:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:10:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-25 18:10:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:10:08,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312827057] [2022-11-25 18:10:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:10:08,613 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 [2022-11-25 18:10:08,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:10:08,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:10:08,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:10:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:10:08,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:10:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:10:08,891 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 18:10:08,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:10:08,894 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 18:10:08,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 18:10:08,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 18:10:09,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:10:09,109 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:10:09,114 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:10:09,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:10:09 BoogieIcfgContainer [2022-11-25 18:10:09,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:10:09,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:10:09,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:10:09,143 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:10:09,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:10:08" (3/4) ... [2022-11-25 18:10:09,146 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:10:09,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:10:09,148 INFO L158 Benchmark]: Toolchain (without parser) took 3055.49ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 43.9MB in the end (delta: 29.8MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2022-11-25 18:10:09,148 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:10:09,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1732.11ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 55.8MB in the end (delta: 17.8MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2022-11-25 18:10:09,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.60ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 52.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:10:09,150 INFO L158 Benchmark]: Boogie Preprocessor took 33.59ms. Allocated memory is still 94.4MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:10:09,151 INFO L158 Benchmark]: RCFGBuilder took 520.74ms. Allocated memory is still 94.4MB. Free memory was 50.8MB in the beginning and 62.2MB in the end (delta: -11.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-11-25 18:10:09,151 INFO L158 Benchmark]: TraceAbstraction took 673.16ms. Allocated memory is still 94.4MB. Free memory was 61.7MB in the beginning and 44.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:10:09,152 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 94.4MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:10:09,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1732.11ms. Allocated memory is still 94.4MB. Free memory was 73.6MB in the beginning and 55.8MB in the end (delta: 17.8MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.60ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 52.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.59ms. Allocated memory is still 94.4MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.74ms. Allocated memory is still 94.4MB. Free memory was 50.8MB in the beginning and 62.2MB in the end (delta: -11.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 673.16ms. Allocated memory is still 94.4MB. Free memory was 61.7MB in the beginning and 44.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 94.4MB. Free memory is still 44.4MB. 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_51b_badSink(data) [L1576] COND TRUE data < 0 VAL [\old(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] [L1578] data * 2 VAL [\old(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: 1578]: 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, 24 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=24occurred 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, 12 NumberOfCodeBlocks, 12 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 [2022-11-25 18:10:09,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02e1308f-add5-4aa3-8f35-796568f19a11/bin/uautomizer-ZsLfNo2U6R/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