./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_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_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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_43349f7c-9a53-4326-bbe0-751026d2cf62/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 8d4123c040e416468a5e1ae07bfe0e41e1beaf83cc2d0ad962c6363cf4e58742 --- 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 12:31:01,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:31:01,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:31:01,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:31:01,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:31:01,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:31:01,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:31:01,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:31:01,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:31:01,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:31:01,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:31:01,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:31:01,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:31:01,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:31:01,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:31:01,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:31:01,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:31:01,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:31:01,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:31:01,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:31:01,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:31:01,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:31:01,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:31:01,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:31:01,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:31:01,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:31:01,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:31:01,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:31:01,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:31:01,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:31:01,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:31:01,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:31:01,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:31:01,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:31:01,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:31:01,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:31:01,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:31:01,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:31:01,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:31:01,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:31:01,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:31:01,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:31:01,117 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:31:01,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:31:01,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:31:01,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:31:01,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:31:01,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:31:01,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:31:01,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:31:01,119 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:31:01,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:31:01,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:31:01,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:31:01,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:31:01,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:31:01,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:31:01,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:31:01,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:31:01,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:31:01,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:31:01,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:31:01,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:31:01,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:31:01,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:31:01,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:31:01,122 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:31:01,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:31:01,122 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:31:01,122 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_43349f7c-9a53-4326-bbe0-751026d2cf62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4123c040e416468a5e1ae07bfe0e41e1beaf83cc2d0ad962c6363cf4e58742 [2022-12-13 12:31:01,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:31:01,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:31:01,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:31:01,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:31:01,319 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:31:01,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_bad.i [2022-12-13 12:31:03,883 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:31:04,140 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:31:04,140 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_bad.i [2022-12-13 12:31:04,152 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data/ab96da99d/533b24ad227f428aa1ae03485c95dde4/FLAG2d228a35a [2022-12-13 12:31:04,464 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data/ab96da99d/533b24ad227f428aa1ae03485c95dde4 [2022-12-13 12:31:04,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:31:04,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:31:04,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:31:04,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:31:04,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:31:04,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:04" (1/1) ... [2022-12-13 12:31:04,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1320dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:04, skipping insertion in model container [2022-12-13 12:31:04,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:04" (1/1) ... [2022-12-13 12:31:04,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:31:04,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:31:04,763 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:31:05,039 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:31:05,045 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:05,047 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:05,049 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:05,050 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:05,074 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:31:05,077 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:31:05,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:31:05,092 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:31:05,107 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:31:05,138 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:31:05,139 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:05,140 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:05,142 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:05,142 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:05,145 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:31:05,146 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:31:05,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:31:05,266 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:31:05,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05 WrapperNode [2022-12-13 12:31:05,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:31:05,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:31:05,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:31:05,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:31:05,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,313 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 55 [2022-12-13 12:31:05,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:31:05,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:31:05,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:31:05,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:31:05,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,328 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:31:05,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:31:05,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:31:05,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:31:05,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (1/1) ... [2022-12-13 12:31:05,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:31:05,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:31:05,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:31:05,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:31:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:31:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:31:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:31:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:31:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 12:31:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:31:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:31:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:31:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:31:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:31:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:31:05,490 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:31:05,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:31:05,582 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:31:05,587 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:31:05,587 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:31:05,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:05 BoogieIcfgContainer [2022-12-13 12:31:05,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:31:05,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:31:05,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:31:05,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:31:05,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:31:04" (1/3) ... [2022-12-13 12:31:05,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12305f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:05, skipping insertion in model container [2022-12-13 12:31:05,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:05" (2/3) ... [2022-12-13 12:31:05,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12305f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:05, skipping insertion in model container [2022-12-13 12:31:05,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:05" (3/3) ... [2022-12-13 12:31:05,597 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_52_bad.i [2022-12-13 12:31:05,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:31:05,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:31:05,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:31:05,657 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;@598d4af3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:31:05,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:31:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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 12:31:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:31:05,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:31:05,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:05,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:31:05,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-13 12:31:05,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:05,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031767448] [2022-12-13 12:31:05,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:05,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:31:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:05,938 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 12:31:05,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:31:05,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031767448] [2022-12-13 12:31:05,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031767448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:05,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:05,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:31:05,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721732553] [2022-12-13 12:31:05,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:05,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:31:05,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:31:05,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:31:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:31:05,968 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:31:06,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:31:06,005 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 12:31:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:31:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 12:31:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:31:06,015 INFO L225 Difference]: With dead ends: 24 [2022-12-13 12:31:06,015 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 12:31:06,017 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 12:31:06,021 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 46 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 12:31:06,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 46 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:31:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 12:31:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 12:31:06,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:31:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 12:31:06,055 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 12:31:06,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:31:06,057 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 12:31:06,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:31:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 12:31:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:31:06,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:31:06,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:06,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:31:06,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:31:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-13 12:31:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:31:06,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659205334] [2022-12-13 12:31:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:31:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:06,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:31:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:06,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:31:06,123 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:31:06,125 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:31:06,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:31:06,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:31:06,129 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:31:06,131 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:31:06,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:31:06 BoogieIcfgContainer [2022-12-13 12:31:06,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:31:06,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:31:06,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:31:06,153 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:31:06,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:05" (3/4) ... [2022-12-13 12:31:06,156 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:31:06,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:31:06,157 INFO L158 Benchmark]: Toolchain (without parser) took 1683.18ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.2MB in the beginning and 93.6MB in the end (delta: -2.4MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-12-13 12:31:06,157 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:31:06,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.52ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.2MB in the beginning and 97.0MB in the end (delta: -5.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-12-13 12:31:06,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.90ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 94.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:31:06,159 INFO L158 Benchmark]: Boogie Preprocessor took 16.86ms. Allocated memory is still 151.0MB. Free memory was 94.2MB in the beginning and 92.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:31:06,159 INFO L158 Benchmark]: RCFGBuilder took 257.50ms. Allocated memory is still 151.0MB. Free memory was 92.8MB in the beginning and 79.5MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:31:06,159 INFO L158 Benchmark]: TraceAbstraction took 561.93ms. Allocated memory is still 151.0MB. Free memory was 79.5MB in the beginning and 94.5MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:31:06,160 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 151.0MB. Free memory was 94.5MB in the beginning and 93.6MB in the end (delta: 907.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:31:06,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 789.52ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.2MB in the beginning and 97.0MB in the end (delta: -5.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.90ms. Allocated memory is still 151.0MB. Free memory was 97.0MB in the beginning and 94.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.86ms. Allocated memory is still 151.0MB. Free memory was 94.2MB in the beginning and 92.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 257.50ms. Allocated memory is still 151.0MB. Free memory was 92.8MB in the beginning and 79.5MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 561.93ms. Allocated memory is still 151.0MB. Free memory was 79.5MB in the beginning and 94.5MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 151.0MB. Free memory was 94.5MB in the beginning and 93.6MB in the end (delta: 907.8kB). 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 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483651:2147483653}, argv={2147483651:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_52c_badSink(data) [L1582] data + 1 VAL [\old(data)=2147483647, 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, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 46 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, 22 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 12:31:06,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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_43349f7c-9a53-4326-bbe0-751026d2cf62/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 8d4123c040e416468a5e1ae07bfe0e41e1beaf83cc2d0ad962c6363cf4e58742 --- 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 12:31:07,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:31:07,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:31:07,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:31:07,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:31:07,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:31:07,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:31:07,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:31:07,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:31:07,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:31:07,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:31:07,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:31:07,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:31:07,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:31:07,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:31:07,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:31:07,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:31:07,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:31:07,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:31:07,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:31:07,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:31:07,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:31:07,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:31:07,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:31:07,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:31:07,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:31:07,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:31:07,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:31:07,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:31:07,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:31:07,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:31:07,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:31:07,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:31:07,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:31:07,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:31:07,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:31:07,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:31:07,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:31:07,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:31:07,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:31:07,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:31:07,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 12:31:07,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:31:07,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:31:07,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:31:07,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:31:07,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:31:07,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:31:07,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:31:07,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:31:07,971 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:31:07,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:31:07,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:31:07,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:31:07,973 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:31:07,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:31:07,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:31:07,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:31:07,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:31:07,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:31:07,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:31:07,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:31:07,974 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:31:07,975 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_43349f7c-9a53-4326-bbe0-751026d2cf62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4123c040e416468a5e1ae07bfe0e41e1beaf83cc2d0ad962c6363cf4e58742 [2022-12-13 12:31:08,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:31:08,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:31:08,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:31:08,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:31:08,202 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:31:08,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_bad.i [2022-12-13 12:31:10,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:31:11,070 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:31:11,070 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_52_bad.i [2022-12-13 12:31:11,088 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data/80a38a563/ccaa570a45d64b57bb093c303420d2c6/FLAG079d15185 [2022-12-13 12:31:11,100 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/data/80a38a563/ccaa570a45d64b57bb093c303420d2c6 [2022-12-13 12:31:11,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:31:11,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:31:11,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:31:11,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:31:11,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:31:11,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5634b187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11, skipping insertion in model container [2022-12-13 12:31:11,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:31:11,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:31:11,424 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:31:11,727 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:31:11,732 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:11,734 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:11,736 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:11,737 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:11,757 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:31:11,760 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:31:11,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:31:11,778 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:31:11,796 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:31:11,840 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:31:11,841 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:11,842 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:31:11,844 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:11,845 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:31:11,849 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:31:11,850 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:31:11,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:31:11,957 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:31:11,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11 WrapperNode [2022-12-13 12:31:11,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:31:11,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:31:11,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:31:11,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:31:11,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:11,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,005 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 54 [2022-12-13 12:31:12,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:31:12,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:31:12,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:31:12,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:31:12,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:31:12,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:31:12,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:31:12,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:31:12,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (1/1) ... [2022-12-13 12:31:12,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:31:12,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:31:12,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:31:12,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:31:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:31:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:31:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:31:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:31:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:31:12,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:31:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:31:12,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:31:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:31:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:31:12,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 12:31:12,232 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:31:12,234 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:31:12,358 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:31:12,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:31:12,364 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:31:12,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:12 BoogieIcfgContainer [2022-12-13 12:31:12,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:31:12,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:31:12,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:31:12,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:31:12,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:31:11" (1/3) ... [2022-12-13 12:31:12,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a495119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:12, skipping insertion in model container [2022-12-13 12:31:12,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:31:11" (2/3) ... [2022-12-13 12:31:12,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a495119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:31:12, skipping insertion in model container [2022-12-13 12:31:12,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:12" (3/3) ... [2022-12-13 12:31:12,374 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_52_bad.i [2022-12-13 12:31:12,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:31:12,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:31:12,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:31:12,442 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;@2791e77d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:31:12,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:31:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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 12:31:12,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:31:12,454 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:31:12,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:12,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:31:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-13 12:31:12,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:31:12,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261563360] [2022-12-13 12:31:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:12,474 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 12:31:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:31:12,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:12,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:31:12,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 12:31:12,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:31:12,622 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 12:31:12,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:31:12,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:31:12,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261563360] [2022-12-13 12:31:12,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261563360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:31:12,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:31:12,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:31:12,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36818528] [2022-12-13 12:31:12,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:31:12,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:31:12,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:31:12,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:31:12,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:31:12,663 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:31:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:31:12,680 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 12:31:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:31:12,681 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 12:31:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:31:12,686 INFO L225 Difference]: With dead ends: 24 [2022-12-13 12:31:12,686 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 12:31:12,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 12:31:12,692 INFO L413 NwaCegarLoop]: 26 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, 26 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 12:31:12,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:31:12,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 12:31:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 12:31:12,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:31:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 12:31:12,726 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 12:31:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:31:12,727 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 12:31:12,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:31:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 12:31:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:31:12,728 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:31:12,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:31:12,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:12,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:12,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:31:12,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:31:12,931 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-13 12:31:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:31:12,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252018331] [2022-12-13 12:31:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:31:12,933 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 12:31:12,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:31:12,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:12,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:13,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:31:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:31:13,211 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:31:13,211 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:31:13,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:31:13,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:31:13,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:13,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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 12:31:13,426 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:31:13,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:31:13,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:31:13 BoogieIcfgContainer [2022-12-13 12:31:13,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:31:13,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:31:13,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:31:13,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:31:13,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:31:12" (3/4) ... [2022-12-13 12:31:13,523 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:31:13,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:31:13,524 INFO L158 Benchmark]: Toolchain (without parser) took 2420.35ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 43.7MB in the end (delta: 11.2MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-12-13 12:31:13,525 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 35.2MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:31:13,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 852.69ms. Allocated memory is still 79.7MB. Free memory was 54.7MB in the beginning and 49.2MB in the end (delta: 5.5MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-12-13 12:31:13,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.84ms. Allocated memory is still 79.7MB. Free memory was 49.2MB in the beginning and 45.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:31:13,526 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 43.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:31:13,527 INFO L158 Benchmark]: RCFGBuilder took 328.98ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 51.2MB in the end (delta: -7.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-12-13 12:31:13,527 INFO L158 Benchmark]: TraceAbstraction took 1148.02ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 43.9MB in the end (delta: 6.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-12-13 12:31:13,528 INFO L158 Benchmark]: Witness Printer took 5.99ms. Allocated memory is still 79.7MB. Free memory was 43.9MB in the beginning and 43.7MB in the end (delta: 179.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:31:13,530 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 56.6MB. Free memory was 35.2MB in the beginning and 35.2MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 852.69ms. Allocated memory is still 79.7MB. Free memory was 54.7MB in the beginning and 49.2MB in the end (delta: 5.5MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.84ms. Allocated memory is still 79.7MB. Free memory was 49.2MB in the beginning and 45.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 79.7MB. Free memory was 45.9MB in the beginning and 43.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.98ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 51.2MB in the end (delta: -7.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1148.02ms. Allocated memory is still 79.7MB. Free memory was 50.6MB in the beginning and 43.9MB in the end (delta: 6.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 5.99ms. Allocated memory is still 79.7MB. Free memory was 43.9MB in the beginning and 43.7MB in the end (delta: 179.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_52c_badSink(data) [L1582] data + 1 VAL [\old(data)=2147483647, 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: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 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, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 70 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 12:31:13,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43349f7c-9a53-4326-bbe0-751026d2cf62/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