./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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 bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 --- 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 11:33:55,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:33:55,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:33:55,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:33:55,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:33:55,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:33:55,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:33:55,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:33:55,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:33:55,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:33:55,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:33:55,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:33:55,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:33:55,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:33:55,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:33:55,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:33:55,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:33:55,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:33:55,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:33:55,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:33:55,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:33:55,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:33:55,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:33:55,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:33:55,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:33:55,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:33:55,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:33:55,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:33:55,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:33:55,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:33:55,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:33:55,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:33:55,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:33:55,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:33:55,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:33:55,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:33:55,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:33:55,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:33:55,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:33:55,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:33:55,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:33:55,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 11:33:55,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:33:55,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:33:55,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:33:55,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:33:55,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:33:55,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:33:55,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:33:55,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:33:55,432 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:33:55,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:33:55,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:33:55,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:33:55,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:33:55,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:33:55,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:33:55,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:33:55,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:33:55,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:33:55,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:33:55,435 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:33:55,435 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_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 [2022-12-13 11:33:55,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:33:55,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:33:55,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:33:55,622 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:33:55,623 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:33:55,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-12-13 11:33:58,197 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:33:58,501 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:33:58,502 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-12-13 11:33:58,520 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data/4245ddea2/a01c87645067460eb6f9d1cf8a917cb9/FLAG13e351f1d [2022-12-13 11:33:58,768 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data/4245ddea2/a01c87645067460eb6f9d1cf8a917cb9 [2022-12-13 11:33:58,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:33:58,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:33:58,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:33:58,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:33:58,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:33:58,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:33:58" (1/1) ... [2022-12-13 11:33:58,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad53e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:33:58, skipping insertion in model container [2022-12-13 11:33:58,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:33:58" (1/1) ... [2022-12-13 11:33:58,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:33:58,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:33:59,095 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:33:59,529 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:33:59,533 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:33:59,534 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:33:59,536 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:33:59,536 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:33:59,872 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:33:59,876 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:33:59,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:33:59,884 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:33:59,899 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:33:59,930 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:33:59,932 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:33:59,932 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:33:59,934 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:33:59,934 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:33:59,943 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:33:59,944 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:33:59,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:34:00,218 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:34:00,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00 WrapperNode [2022-12-13 11:34:00,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:34:00,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:34:00,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:34:00,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:34:00,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,259 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2022-12-13 11:34:00,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:34:00,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:34:00,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:34:00,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:34:00,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:34:00,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:34:00,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:34:00,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:34:00,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (1/1) ... [2022-12-13 11:34:00,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:34:00,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:34:00,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:34:00,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:34:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:34:00,326 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:34:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:34:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 11:34:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:34:00,433 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:34:00,434 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:34:00,537 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:34:00,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:34:00,542 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:34:00,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:00 BoogieIcfgContainer [2022-12-13 11:34:00,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:34:00,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:34:00,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:34:00,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:34:00,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:33:58" (1/3) ... [2022-12-13 11:34:00,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bed4208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:34:00, skipping insertion in model container [2022-12-13 11:34:00,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:00" (2/3) ... [2022-12-13 11:34:00,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bed4208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:34:00, skipping insertion in model container [2022-12-13 11:34:00,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:00" (3/3) ... [2022-12-13 11:34:00,556 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-12-13 11:34:00,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:34:00,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:34:00,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:34:00,620 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;@2bea06c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:34:00,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:34:00,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 11:34:00,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:34:00,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:34:00,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:34:00,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:34:00,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:34:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-13 11:34:00,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:34:00,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641857166] [2022-12-13 11:34:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:34:00,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:34:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:34:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:34:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:34:00,837 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 11:34:00,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:34:00,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641857166] [2022-12-13 11:34:00,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641857166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:34:00,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:34:00,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:34:00,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813579310] [2022-12-13 11:34:00,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:34:00,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:34:00,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:34:00,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:34:00,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:34:00,874 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 11:34:00,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:34:00,888 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-13 11:34:00,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:34:00,890 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 11:34:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:34:00,895 INFO L225 Difference]: With dead ends: 22 [2022-12-13 11:34:00,895 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:34:00,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 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 11:34:00,899 INFO L413 NwaCegarLoop]: 24 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, 24 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 11:34:00,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:34:00,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:34:00,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 11:34:00,924 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 11:34:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 11:34:00,925 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 11:34:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:34:00,926 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 11:34:00,926 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 11:34:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 11:34:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 11:34:00,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:34:00,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:34:00,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:34:00,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:34:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:34:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-12-13 11:34:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:34:00,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188344962] [2022-12-13 11:34:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:34:00,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:34:00,958 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 11:34:00,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883211644] [2022-12-13 11:34:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:34:00,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:34:00,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:34:00,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:34:00,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:34:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:34:01,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:34:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:34:01,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:34:01,083 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:34:01,084 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:34:01,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:34:01,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:34:01,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:34:01,299 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:34:01,310 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:34:01,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:34:01 BoogieIcfgContainer [2022-12-13 11:34:01,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:34:01,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:34:01,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:34:01,387 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:34:01,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:00" (3/4) ... [2022-12-13 11:34:01,396 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:34:01,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:34:01,399 INFO L158 Benchmark]: Toolchain (without parser) took 2626.54ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 84.3MB in the beginning and 76.7MB in the end (delta: 7.6MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-12-13 11:34:01,399 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:34:01,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1446.91ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 83.8MB in the beginning and 71.0MB in the end (delta: 12.9MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2022-12-13 11:34:01,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.79ms. Allocated memory is still 148.9MB. Free memory was 71.0MB in the beginning and 66.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:34:01,403 INFO L158 Benchmark]: Boogie Preprocessor took 16.83ms. Allocated memory is still 148.9MB. Free memory was 66.8MB in the beginning and 65.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:34:01,404 INFO L158 Benchmark]: RCFGBuilder took 267.24ms. Allocated memory is still 148.9MB. Free memory was 65.7MB in the beginning and 52.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:34:01,405 INFO L158 Benchmark]: TraceAbstraction took 838.64ms. Allocated memory is still 148.9MB. Free memory was 52.1MB in the beginning and 76.7MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:34:01,406 INFO L158 Benchmark]: Witness Printer took 10.24ms. Allocated memory is still 148.9MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:34:01,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1446.91ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 83.8MB in the beginning and 71.0MB in the end (delta: 12.9MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.79ms. Allocated memory is still 148.9MB. Free memory was 71.0MB in the beginning and 66.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.83ms. Allocated memory is still 148.9MB. Free memory was 66.8MB in the beginning and 65.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.24ms. Allocated memory is still 148.9MB. Free memory was 65.7MB in the beginning and 52.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 838.64ms. Allocated memory is still 148.9MB. Free memory was 52.1MB in the beginning and 76.7MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.24ms. Allocated memory is still 148.9MB. Free memory is still 76.7MB. 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: 1848]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840. 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] [L1855] 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) [L1855] RET printLine("Calling bad()...") VAL [\old(argc)=27, argc=27, argv={29:28}, argv={29:28}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1856] CALL CWE190_Integer_Overflow__int_fgets_square_01_bad() [L1834] int data; [L1835] data = 0 [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=126322567, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1848] data * data VAL [data=126322567, 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: 1848]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 24 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, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 11:34:01,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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 bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 --- 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 11:34:03,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:34:03,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:34:03,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:34:03,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:34:03,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:34:03,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:34:03,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:34:03,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:34:03,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:34:03,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:34:03,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:34:03,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:34:03,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:34:03,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:34:03,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:34:03,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:34:03,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:34:03,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:34:03,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:34:03,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:34:03,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:34:03,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:34:03,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:34:03,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:34:03,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:34:03,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:34:03,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:34:03,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:34:03,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:34:03,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:34:03,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:34:03,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:34:03,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:34:03,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:34:03,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:34:03,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:34:03,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:34:03,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:34:03,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:34:03,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:34:03,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 11:34:03,149 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:34:03,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:34:03,150 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:34:03,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:34:03,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:34:03,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:34:03,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:34:03,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:34:03,151 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:34:03,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:34:03,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:34:03,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:34:03,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:34:03,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:34:03,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:34:03,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:34:03,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:34:03,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:34:03,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:34:03,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:34:03,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:34:03,153 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:34:03,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:34:03,159 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:34:03,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:34:03,159 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:34:03,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:34:03,160 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:34:03,160 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:34:03,160 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_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 [2022-12-13 11:34:03,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:34:03,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:34:03,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:34:03,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:34:03,412 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:34:03,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-12-13 11:34:05,935 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:34:06,180 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:34:06,180 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-12-13 11:34:06,197 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data/4ac09e69c/99315885e789405e871fb93bf4c03914/FLAG6ae39f199 [2022-12-13 11:34:06,485 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/data/4ac09e69c/99315885e789405e871fb93bf4c03914 [2022-12-13 11:34:06,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:34:06,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:34:06,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:34:06,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:34:06,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:34:06,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:34:06" (1/1) ... [2022-12-13 11:34:06,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c50dfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:06, skipping insertion in model container [2022-12-13 11:34:06,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:34:06" (1/1) ... [2022-12-13 11:34:06,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:34:06,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:34:06,914 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:34:07,351 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:34:07,355 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:34:07,356 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:34:07,358 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:34:07,358 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:34:07,658 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:34:07,662 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:34:07,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:34:07,672 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:34:07,685 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:34:07,717 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:34:07,718 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:34:07,719 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:34:07,720 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:34:07,721 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:34:07,737 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:34:07,739 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:34:07,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:34:08,022 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:34:08,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08 WrapperNode [2022-12-13 11:34:08,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:34:08,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:34:08,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:34:08,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:34:08,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,066 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2022-12-13 11:34:08,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:34:08,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:34:08,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:34:08,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:34:08,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,083 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:34:08,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:34:08,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:34:08,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:34:08,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (1/1) ... [2022-12-13 11:34:08,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:34:08,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:34:08,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:34:08,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:34:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:34:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:34:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:34:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:34:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:34:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 11:34:08,138 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:34:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:34:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:34:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:34:08,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:34:08,263 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:34:08,264 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:34:10,258 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:34:10,263 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:34:10,263 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:34:10,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:10 BoogieIcfgContainer [2022-12-13 11:34:10,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:34:10,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:34:10,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:34:10,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:34:10,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:34:06" (1/3) ... [2022-12-13 11:34:10,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4580e682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:34:10, skipping insertion in model container [2022-12-13 11:34:10,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:34:08" (2/3) ... [2022-12-13 11:34:10,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4580e682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:34:10, skipping insertion in model container [2022-12-13 11:34:10,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:34:10" (3/3) ... [2022-12-13 11:34:10,270 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-12-13 11:34:10,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:34:10,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:34:10,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:34:10,320 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;@3ab5e0b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:34:10,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:34:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 11:34:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:34:10,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:34:10,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:34:10,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:34:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:34:10,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-13 11:34:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:34:10,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873894233] [2022-12-13 11:34:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:34:10,343 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 11:34:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:34:10,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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 11:34:10,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ad1af4f-08ab-4752-98ba-7257b6ec9842/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 11:34:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:34:10,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.