./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8 --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 36b84665bd2b72e500959c1f8e500bb8e4874dc7126c5d8b477751820c4a38d3 --- 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-2329fc7 [2022-12-13 12:34:20,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:34:20,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:34:20,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:34:20,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:34:20,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:34:20,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:34:20,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:34:20,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:34:20,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:34:20,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:34:20,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:34:20,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:34:20,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:34:20,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:34:20,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:34:20,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:34:20,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:34:20,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:34:20,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:34:20,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:34:20,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:34:20,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:34:20,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:34:20,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:34:20,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:34:20,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:34:20,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:34:20,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:34:20,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:34:20,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:34:20,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:34:20,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:34:20,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:34:20,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:34:20,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:34:20,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:34:20,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:34:20,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:34:20,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:34:20,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:34:20,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:34:20,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:34:20,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:34:20,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:34:20,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:34:20,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:34:20,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:34:20,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:34:20,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:34:20,088 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:34:20,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:34:20,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:34:20,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:34:20,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:34:20,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:34:20,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:34:20,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:34:20,090 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:34:20,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:34:20,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:34:20,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:34:20,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:34:20,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:34:20,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:34:20,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:34:20,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:34:20,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:34:20,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:34:20,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:34:20,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:34:20,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:34:20,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:34:20,093 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:34:20,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:34:20,093 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:34:20,093 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_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36b84665bd2b72e500959c1f8e500bb8e4874dc7126c5d8b477751820c4a38d3 [2022-12-13 12:34:20,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:34:20,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:34:20,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:34:20,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:34:20,312 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:34:20,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i [2022-12-13 12:34:22,983 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:34:23,199 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:34:23,200 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i [2022-12-13 12:34:23,213 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data/07f2f045f/1c1403ac9f614373b8f6954d37e7277c/FLAGd8397cab8 [2022-12-13 12:34:23,224 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data/07f2f045f/1c1403ac9f614373b8f6954d37e7277c [2022-12-13 12:34:23,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:34:23,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:34:23,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:34:23,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:34:23,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:34:23,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:23,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c43ab3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23, skipping insertion in model container [2022-12-13 12:34:23,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:23,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:34:23,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:34:23,496 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:34:23,794 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:34:23,798 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:23,800 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:23,802 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:23,802 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:23,816 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:34:23,818 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:34:23,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:34:23,828 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:34:23,841 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:34:23,874 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:34:23,876 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:23,876 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:23,878 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:23,878 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:23,882 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:34:23,883 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:34:23,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:34:23,985 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:34:23,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23 WrapperNode [2022-12-13 12:34:23,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:34:23,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:34:23,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:34:23,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:34:23,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,022 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 12:34:24,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:34:24,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:34:24,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:34:24,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:34:24,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:34:24,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:34:24,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:34:24,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:34:24,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (1/1) ... [2022-12-13 12:34:24,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:34:24,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:34:24,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:34:24,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:34:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:34:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:34:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:34:24,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:34:24,220 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:34:24,222 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:34:24,342 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:34:24,348 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:34:24,348 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:34:24,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:34:24 BoogieIcfgContainer [2022-12-13 12:34:24,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:34:24,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:34:24,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:34:24,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:34:24,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:34:23" (1/3) ... [2022-12-13 12:34:24,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ae2dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:34:24, skipping insertion in model container [2022-12-13 12:34:24,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:23" (2/3) ... [2022-12-13 12:34:24,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ae2dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:34:24, skipping insertion in model container [2022-12-13 12:34:24,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:34:24" (3/3) ... [2022-12-13 12:34:24,358 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_22_bad.i [2022-12-13 12:34:24,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:34:24,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:34:24,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:34:24,418 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;@22c9b5da, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:34:24,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:34:24,421 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) [2022-12-13 12:34:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:34:24,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:34:24,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:34:24,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:34:24,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:34:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 12:34:24,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:34:24,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362347711] [2022-12-13 12:34:24,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:34:24,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:34:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:34:24,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:34:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:34:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:34:24,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:34:24,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362347711] [2022-12-13 12:34:24,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362347711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:34:24,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:34:24,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:34:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771062206] [2022-12-13 12:34:24,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:34:24,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:34:24,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:34:24,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:34:24,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:34:24,783 INFO L87 Difference]: Start difference. First 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) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:34:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:34:24,819 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-12-13 12:34:24,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:34:24,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 12:34:24,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:34:24,825 INFO L225 Difference]: With dead ends: 24 [2022-12-13 12:34:24,825 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 12:34:24,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:34:24,830 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:34:24,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 47 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:34:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 12:34:24,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 12:34:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:34:24,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 12:34:24,854 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 12:34:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:34:24,855 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 12:34:24,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:34:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 12:34:24,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:34:24,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:34:24,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:34:24,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:34:24,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:34:24,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:34:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-13 12:34:24,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:34:24,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015490468] [2022-12-13 12:34:24,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:34:24,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:34:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:34:24,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:34:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:34:24,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:34:24,903 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:34:24,905 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:34:24,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:34:24,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:34:24,909 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:34:24,912 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:34:24,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:34:24 BoogieIcfgContainer [2022-12-13 12:34:24,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:34:24,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:34:24,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:34:24,930 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:34:24,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:34:24" (3/4) ... [2022-12-13 12:34:24,933 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:34:24,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:34:24,934 INFO L158 Benchmark]: Toolchain (without parser) took 1707.22ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 104.2MB in the beginning and 71.9MB in the end (delta: 32.3MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,934 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:34:24,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.30ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 104.0MB in the beginning and 130.6MB in the end (delta: -26.7MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.57ms. Allocated memory is still 174.1MB. Free memory was 130.6MB in the beginning and 127.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,935 INFO L158 Benchmark]: Boogie Preprocessor took 17.89ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 125.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,936 INFO L158 Benchmark]: RCFGBuilder took 309.20ms. Allocated memory is still 174.1MB. Free memory was 125.4MB in the beginning and 112.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,936 INFO L158 Benchmark]: TraceAbstraction took 577.27ms. Allocated memory is still 174.1MB. Free memory was 111.7MB in the beginning and 73.0MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,936 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 174.1MB. Free memory was 73.0MB in the beginning and 71.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:34:24,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.30ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 104.0MB in the beginning and 130.6MB in the end (delta: -26.7MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.57ms. Allocated memory is still 174.1MB. Free memory was 130.6MB in the beginning and 127.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.89ms. Allocated memory is still 174.1MB. Free memory was 127.5MB in the beginning and 125.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.20ms. Allocated memory is still 174.1MB. Free memory was 125.4MB in the beginning and 112.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 577.27ms. Allocated memory is still 174.1MB. Free memory was 111.7MB in the beginning and 73.0MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 174.1MB. Free memory was 73.0MB in the beginning and 71.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 1582]: 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); [L1548] int CWE190_Integer_Overflow__int_fgets_add_22_badGlobal = 0; VAL [CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=0, 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 [CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483651:2147483654}, argv={2147483651:2147483654}, CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_22_bad() [L1552] int data; [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] CWE190_Integer_Overflow__int_fgets_add_22_badGlobal = 1 [L1566] CALL CWE190_Integer_Overflow__int_fgets_add_22_badSink(data) [L1579] COND TRUE \read(CWE190_Integer_Overflow__int_fgets_add_22_badGlobal) VAL [\old(data)=2147483647, CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=1, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] data + 1 VAL [\old(data)=2147483647, CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=1, data=2147483647, 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: 1582]: 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 23 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:34:24,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8 --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 36b84665bd2b72e500959c1f8e500bb8e4874dc7126c5d8b477751820c4a38d3 --- 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-2329fc7 [2022-12-13 12:34:26,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:34:26,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:34:26,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:34:26,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:34:26,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:34:26,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:34:26,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:34:26,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:34:26,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:34:26,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:34:26,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:34:26,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:34:26,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:34:26,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:34:26,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:34:26,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:34:26,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:34:26,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:34:26,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:34:26,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:34:26,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:34:26,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:34:26,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:34:26,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:34:26,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:34:26,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:34:26,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:34:26,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:34:26,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:34:26,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:34:26,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:34:26,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:34:26,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:34:26,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:34:26,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:34:26,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:34:26,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:34:26,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:34:26,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:34:26,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:34:26,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 12:34:26,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:34:26,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:34:26,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:34:26,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:34:26,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:34:26,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:34:26,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:34:26,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:34:26,759 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:34:26,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:34:26,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:34:26,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:34:26,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:34:26,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:34:26,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:34:26,760 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:34:26,760 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:34:26,760 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:34:26,760 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:34:26,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:34:26,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:34:26,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:34:26,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:34:26,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:34:26,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:34:26,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:34:26,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:34:26,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:34:26,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:34:26,767 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:34:26,768 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:34:26,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:34:26,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:34:26,768 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:34:26,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:34:26,768 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:34:26,769 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:34:26,769 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_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36b84665bd2b72e500959c1f8e500bb8e4874dc7126c5d8b477751820c4a38d3 [2022-12-13 12:34:27,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:34:27,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:34:27,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:34:27,019 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:34:27,020 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:34:27,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i [2022-12-13 12:34:29,599 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:34:29,833 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:34:29,833 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_22_bad.i [2022-12-13 12:34:29,851 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data/c2cee843a/6b598133b33a4e7f8a951ac068fab380/FLAG502abdcbf [2022-12-13 12:34:29,865 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/data/c2cee843a/6b598133b33a4e7f8a951ac068fab380 [2022-12-13 12:34:29,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:34:29,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:34:29,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:34:29,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:34:29,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:34:29,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:34:29" (1/1) ... [2022-12-13 12:34:29,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab8ca83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:29, skipping insertion in model container [2022-12-13 12:34:29,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:34:29" (1/1) ... [2022-12-13 12:34:29,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:34:29,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:34:30,265 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:34:30,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:34:30,605 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:30,606 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:30,608 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:30,609 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:30,628 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:34:30,631 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:34:30,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:34:30,653 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:34:30,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:34:30,717 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:34:30,718 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:30,719 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:34:30,721 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:30,722 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:34:30,726 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:34:30,727 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:34:30,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:34:30,813 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:34:30,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30 WrapperNode [2022-12-13 12:34:30,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:34:30,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:34:30,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:34:30,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:34:30,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,858 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2022-12-13 12:34:30,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:34:30,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:34:30,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:34:30,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:34:30,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:34:30,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:34:30,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:34:30,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:34:30,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (1/1) ... [2022-12-13 12:34:30,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:34:30,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:34:30,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:34:30,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:34:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:34:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:34:30,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:34:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:34:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:34:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:34:30,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:34:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:34:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:34:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:34:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 12:34:31,076 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:34:31,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:34:31,192 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:34:31,196 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:34:31,196 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:34:31,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:34:31 BoogieIcfgContainer [2022-12-13 12:34:31,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:34:31,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:34:31,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:34:31,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:34:31,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:34:29" (1/3) ... [2022-12-13 12:34:31,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625219bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:34:31, skipping insertion in model container [2022-12-13 12:34:31,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:34:30" (2/3) ... [2022-12-13 12:34:31,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625219bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:34:31, skipping insertion in model container [2022-12-13 12:34:31,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:34:31" (3/3) ... [2022-12-13 12:34:31,204 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_22_bad.i [2022-12-13 12:34:31,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:34:31,217 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:34:31,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:34:31,252 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;@2fb8d911, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:34:31,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:34:31,255 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) [2022-12-13 12:34:31,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:34:31,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:34:31,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:34:31,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:34:31,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:34:31,265 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 12:34:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:34:31,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227482812] [2022-12-13 12:34:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:34:31,274 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 [2022-12-13 12:34:31,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:34:31,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:34:31,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:34:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:34:31,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 12:34:31,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:34:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:34:31,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:34:31,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:34:31,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227482812] [2022-12-13 12:34:31,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227482812] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:34:31,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:34:31,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:34:31,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813138211] [2022-12-13 12:34:31,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:34:31,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:34:31,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:34:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:34:31,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:34:31,442 INFO L87 Difference]: Start difference. First 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) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:34:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:34:31,455 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-12-13 12:34:31,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:34:31,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 12:34:31,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:34:31,461 INFO L225 Difference]: With dead ends: 24 [2022-12-13 12:34:31,462 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 12:34:31,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:34:31,466 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:34:31,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:34:31,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 12:34:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 12:34:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:34:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 12:34:31,490 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 12:34:31,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:34:31,491 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 12:34:31,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:34:31,491 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 12:34:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:34:31,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:34:31,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:34:31,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:34:31,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:34:31,694 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:34:31,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:34:31,697 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-13 12:34:31,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:34:31,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089561458] [2022-12-13 12:34:31,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:34:31,700 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 [2022-12-13 12:34:31,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:34:31,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:34:31,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 (3)] Waiting until timeout for monitored process [2022-12-13 12:34:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:34:31,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:34:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:34:31,968 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:34:31,969 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:34:31,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:34:31,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:34:31,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 (3)] Ended with exit code 0 [2022-12-13 12:34:32,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:34:32,180 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:34:32,190 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:34:32,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:34:32 BoogieIcfgContainer [2022-12-13 12:34:32,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:34:32,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:34:32,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:34:32,241 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:34:32,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:34:31" (3/4) ... [2022-12-13 12:34:32,244 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:34:32,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:34:32,245 INFO L158 Benchmark]: Toolchain (without parser) took 2376.45ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 52.9MB in the beginning and 45.8MB in the end (delta: 7.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-12-13 12:34:32,245 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:34:32,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 944.15ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 29.3MB in the end (delta: 23.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-12-13 12:34:32,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.26ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 65.6MB in the end (delta: -36.3MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-12-13 12:34:32,247 INFO L158 Benchmark]: Boogie Preprocessor took 31.75ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:34:32,247 INFO L158 Benchmark]: RCFGBuilder took 306.14ms. Allocated memory is still 92.3MB. Free memory was 63.5MB in the beginning and 48.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:34:32,248 INFO L158 Benchmark]: TraceAbstraction took 1040.47ms. Allocated memory is still 92.3MB. Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.8MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2022-12-13 12:34:32,248 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 92.3MB. Free memory was 46.4MB in the beginning and 45.8MB in the end (delta: 593.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:34:32,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 944.15ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 29.3MB in the end (delta: 23.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.26ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 65.6MB in the end (delta: -36.3MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.75ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 63.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.14ms. Allocated memory is still 92.3MB. Free memory was 63.5MB in the beginning and 48.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1040.47ms. Allocated memory is still 92.3MB. Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.8MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 92.3MB. Free memory was 46.4MB in the beginning and 45.8MB in the end (delta: 593.9kB). 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: 1582]: 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); [L1548] int CWE190_Integer_Overflow__int_fgets_add_22_badGlobal = 0; VAL [CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=0, 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 [CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_22_bad() [L1552] int data; [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] CWE190_Integer_Overflow__int_fgets_add_22_badGlobal = 1 [L1566] CALL CWE190_Integer_Overflow__int_fgets_add_22_badSink(data) [L1579] COND TRUE \read(CWE190_Integer_Overflow__int_fgets_add_22_badGlobal) VAL [\old(data)=2147483647, CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=1, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] data + 1 VAL [\old(data)=2147483647, CWE190_Integer_Overflow__int_fgets_add_22_badGlobal=1, data=2147483647, 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: 1582]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 27 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:34:32,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16fcbccf-f425-408b-9e6d-f8ba246f7814/bin/uautomizer-uyxdKDjOR8/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample