./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:32:00,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:32:00,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:32:00,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:32:00,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:32:00,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:32:00,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:32:00,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:32:00,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:32:00,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:32:00,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:32:00,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:32:00,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:32:00,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:32:00,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:32:00,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:32:00,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:32:00,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:32:00,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:32:00,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:32:00,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:32:00,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:32:00,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:32:00,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:32:00,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:32:00,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:32:00,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:32:00,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:32:00,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:32:00,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:32:00,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:32:00,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:32:00,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:32:00,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:32:00,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:32:00,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:32:00,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:32:00,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:32:00,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:32:00,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:32:00,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:32:00,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:32:00,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:32:00,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:32:00,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:32:00,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:32:00,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:32:00,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:32:00,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:32:00,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:32:00,863 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:32:00,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:32:00,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:32:00,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:32:00,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:32:00,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:32:00,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:32:00,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:32:00,867 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:32:00,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:32:00,868 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:32:00,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:32:00,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:32:00,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:32:00,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:32:00,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:32:00,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:32:00,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:32:00,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:32:00,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:32:00,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:32:00,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:32:00,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:32:00,873 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:32:00,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:32:00,874 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_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd [2022-11-23 03:32:01,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:32:01,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:32:01,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:32:01,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:32:01,307 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:32:01,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2022-11-23 03:32:04,465 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:32:04,913 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:32:04,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2022-11-23 03:32:04,958 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data/0533b763b/71c3e295e5eb4f7d81be0bb3a977595a/FLAG7d10d1417 [2022-11-23 03:32:04,973 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data/0533b763b/71c3e295e5eb4f7d81be0bb3a977595a [2022-11-23 03:32:04,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:32:04,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:32:04,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:32:04,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:32:04,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:32:04,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:04" (1/1) ... [2022-11-23 03:32:04,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24cd2e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:04, skipping insertion in model container [2022-11-23 03:32:04,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:04" (1/1) ... [2022-11-23 03:32:04,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:32:05,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:32:05,478 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:32:06,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:32:06,205 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:32:06,228 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:32:06,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:32:06,539 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:32:06,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06 WrapperNode [2022-11-23 03:32:06,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:32:06,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:32:06,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:32:06,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:32:06,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,629 INFO L138 Inliner]: procedures = 501, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-11-23 03:32:06,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:32:06,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:32:06,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:32:06,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:32:06,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,688 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:32:06,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:32:06,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:32:06,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:32:06,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (1/1) ... [2022-11-23 03:32:06,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:32:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:06,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:32:06,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:32:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 03:32:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 03:32:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 03:32:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:32:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 03:32:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:32:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:32:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:32:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:32:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:32:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 03:32:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:32:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:32:06,987 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:32:06,989 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:32:07,208 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:32:07,216 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:32:07,216 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:32:07,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:07 BoogieIcfgContainer [2022-11-23 03:32:07,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:32:07,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:32:07,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:32:07,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:32:07,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:32:04" (1/3) ... [2022-11-23 03:32:07,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d37caa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:07, skipping insertion in model container [2022-11-23 03:32:07,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:06" (2/3) ... [2022-11-23 03:32:07,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d37caa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:07, skipping insertion in model container [2022-11-23 03:32:07,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:07" (3/3) ... [2022-11-23 03:32:07,239 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2022-11-23 03:32:07,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:32:07,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:32:07,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:32:07,327 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;@3d22c3f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:32:07,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:32:07,332 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) [2022-11-23 03:32:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:32:07,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:07,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:07,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:32:07,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-23 03:32:07,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:32:07,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029065533] [2022-11-23 03:32:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:07,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:32:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:32:07,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:32:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:32:07,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:32:07,770 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:32:07,772 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:32:07,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:32:07,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:32:07,781 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:32:07,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:32:07,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:32:07 BoogieIcfgContainer [2022-11-23 03:32:07,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:32:07,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:32:07,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:32:07,842 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:32:07,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:07" (3/4) ... [2022-11-23 03:32:07,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:32:07,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:32:07,847 INFO L158 Benchmark]: Toolchain (without parser) took 2869.56ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 115.7MB in the beginning and 116.5MB in the end (delta: -809.5kB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-11-23 03:32:07,848 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:32:07,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1561.44ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 115.7MB in the beginning and 154.2MB in the end (delta: -38.6MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-11-23 03:32:07,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.32ms. Allocated memory is still 192.9MB. Free memory was 154.2MB in the beginning and 151.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:32:07,850 INFO L158 Benchmark]: Boogie Preprocessor took 71.61ms. Allocated memory is still 192.9MB. Free memory was 151.1MB in the beginning and 150.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:32:07,851 INFO L158 Benchmark]: RCFGBuilder took 515.98ms. Allocated memory is still 192.9MB. Free memory was 149.0MB in the beginning and 135.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:32:07,851 INFO L158 Benchmark]: TraceAbstraction took 618.75ms. Allocated memory is still 192.9MB. Free memory was 134.3MB in the beginning and 116.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 03:32:07,852 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 192.9MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:32:07,855 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 95.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1561.44ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 115.7MB in the beginning and 154.2MB in the end (delta: -38.6MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.32ms. Allocated memory is still 192.9MB. Free memory was 154.2MB in the beginning and 151.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.61ms. Allocated memory is still 192.9MB. Free memory was 151.1MB in the beginning and 150.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 515.98ms. Allocated memory is still 192.9MB. Free memory was 149.0MB in the beginning and 135.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 618.75ms. Allocated memory is still 192.9MB. Free memory was 134.3MB in the beginning and 116.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 192.9MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1581]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1571] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [#in~argv={1073741827:1073741833}, argc=1073741832, argv={1073741827:1073741833}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741832] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1579] COND TRUE data < 0 VAL [#in~dataArray={7:0}, data=-1073741825, dataArray={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] data * 2 VAL [#in~dataArray={7:0}, data=-1073741825, dataArray={7:0}, 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: 1581]: 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: 0.5s, 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 [2022-11-23 03:32:07,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:32:10,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:32:10,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:32:10,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:32:10,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:32:10,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:32:10,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:32:10,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:32:10,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:32:10,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:32:10,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:32:10,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:32:10,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:32:10,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:32:10,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:32:10,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:32:10,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:32:10,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:32:10,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:32:10,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:32:10,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:32:10,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:32:10,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:32:10,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:32:10,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:32:10,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:32:10,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:32:10,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:32:10,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:32:10,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:32:10,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:32:10,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:32:10,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:32:10,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:32:10,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:32:10,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:32:10,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:32:10,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:32:10,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:32:10,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:32:10,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:32:10,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-23 03:32:10,898 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:32:10,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:32:10,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:32:10,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:32:10,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:32:10,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:32:10,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:32:10,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:32:10,902 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:32:10,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:32:10,902 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:32:10,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:32:10,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:32:10,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:32:10,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:32:10,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:32:10,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:32:10,904 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:32:10,904 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:32:10,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:32:10,905 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:32:10,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:32:10,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:32:10,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:32:10,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:32:10,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:32:10,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:32:10,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:32:10,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:32:10,907 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:32:10,907 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:32:10,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:32:10,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:32:10,908 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:32:10,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:32:10,909 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:32:10,909 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_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd [2022-11-23 03:32:11,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:32:11,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:32:11,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:32:11,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:32:11,391 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:32:11,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2022-11-23 03:32:14,766 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:32:15,306 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:32:15,306 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2022-11-23 03:32:15,330 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data/e31f73728/f2c9172c77824b72bbe85caee1510458/FLAGcbdaa142b [2022-11-23 03:32:15,348 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/data/e31f73728/f2c9172c77824b72bbe85caee1510458 [2022-11-23 03:32:15,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:32:15,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:32:15,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:32:15,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:32:15,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:32:15,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:15" (1/1) ... [2022-11-23 03:32:15,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62939481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:15, skipping insertion in model container [2022-11-23 03:32:15,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:15" (1/1) ... [2022-11-23 03:32:15,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:32:15,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:32:15,996 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:32:16,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:32:16,805 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:32:16,836 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:32:16,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:32:17,075 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:32:17,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17 WrapperNode [2022-11-23 03:32:17,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:32:17,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:32:17,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:32:17,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:32:17,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,153 INFO L138 Inliner]: procedures = 506, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-11-23 03:32:17,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:32:17,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:32:17,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:32:17,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:32:17,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:32:17,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:32:17,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:32:17,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:32:17,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (1/1) ... [2022-11-23 03:32:17,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:32:17,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:32:17,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:32:17,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:32:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 03:32:17,296 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 03:32:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 03:32:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:32:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 03:32:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:32:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:32:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:32:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 03:32:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:32:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 03:32:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 03:32:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 03:32:17,543 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:32:17,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:32:17,876 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:32:17,883 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:32:17,884 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:32:17,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:17 BoogieIcfgContainer [2022-11-23 03:32:17,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:32:17,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:32:17,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:32:17,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:32:17,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:32:15" (1/3) ... [2022-11-23 03:32:17,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10474a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:17, skipping insertion in model container [2022-11-23 03:32:17,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:17" (2/3) ... [2022-11-23 03:32:17,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10474a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:32:17, skipping insertion in model container [2022-11-23 03:32:17,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:17" (3/3) ... [2022-11-23 03:32:17,897 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2022-11-23 03:32:17,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:32:17,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:32:17,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:32:18,002 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;@7cfa740a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:32:18,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:32:18,007 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) [2022-11-23 03:32:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:32:18,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:18,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:18,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:32:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:18,031 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-23 03:32:18,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:18,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937343118] [2022-11-23 03:32:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:18,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:32:18,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:18,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:32:18,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 03:32:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:32:18,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:32:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:32:18,466 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 03:32:18,474 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:32:18,476 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:32:18,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:32:18,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:18,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:32:18,699 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:32:18,709 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:32:18,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:32:18 BoogieIcfgContainer [2022-11-23 03:32:18,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:32:18,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:32:18,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:32:18,756 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:32:18,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:17" (3/4) ... [2022-11-23 03:32:18,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:32:18,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:32:18,762 INFO L158 Benchmark]: Toolchain (without parser) took 3409.25ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 52.0MB in the beginning and 48.5MB in the end (delta: 3.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-23 03:32:18,763 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory was 56.0MB in the beginning and 55.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:32:18,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1721.24ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 51.8MB in the beginning and 58.2MB in the end (delta: -6.4MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2022-11-23 03:32:18,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.41ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 55.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:32:18,765 INFO L158 Benchmark]: Boogie Preprocessor took 40.01ms. Allocated memory is still 98.6MB. Free memory was 55.3MB in the beginning and 52.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:32:18,766 INFO L158 Benchmark]: RCFGBuilder took 690.92ms. Allocated memory is still 98.6MB. Free memory was 52.9MB in the beginning and 67.9MB in the end (delta: -15.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-11-23 03:32:18,766 INFO L158 Benchmark]: TraceAbstraction took 866.30ms. Allocated memory is still 98.6MB. Free memory was 67.4MB in the beginning and 49.1MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 03:32:18,767 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 98.6MB. Free memory was 49.1MB in the beginning and 48.5MB in the end (delta: 567.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:32:18,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 77.6MB. Free memory was 56.0MB in the beginning and 55.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1721.24ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 51.8MB in the beginning and 58.2MB in the end (delta: -6.4MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.41ms. Allocated memory is still 98.6MB. Free memory was 58.2MB in the beginning and 55.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.01ms. Allocated memory is still 98.6MB. Free memory was 55.3MB in the beginning and 52.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 690.92ms. Allocated memory is still 98.6MB. Free memory was 52.9MB in the beginning and 67.9MB in the end (delta: -15.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 866.30ms. Allocated memory is still 98.6MB. Free memory was 67.4MB in the beginning and 49.1MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 98.6MB. Free memory was 49.1MB in the beginning and 48.5MB in the end (delta: 567.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1581]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1571] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1579] COND TRUE data < 0 VAL [#in~dataArray={32775:0}, data=-2147483648, dataArray={32775:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] data * 2 VAL [#in~dataArray={32775:0}, data=-2147483648, dataArray={32775:0}, 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: 1581]: 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: 0.7s, 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 [2022-11-23 03:32:18,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed2d47b-fd82-4a05-a0b6-dbc7b93309fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample