./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- 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 19:01:41,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:01:41,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:01:41,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:01:41,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:01:41,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:01:41,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:01:41,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:01:41,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:01:41,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:01:41,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:01:41,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:01:41,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:01:41,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:01:41,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:01:41,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:01:41,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:01:41,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:01:41,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:01:41,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:01:41,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:01:41,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:01:41,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:01:41,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:01:41,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:01:41,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:01:41,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:01:41,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:01:41,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:01:41,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:01:41,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:01:41,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:01:41,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:01:41,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:01:41,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:01:41,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:01:41,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:01:41,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:01:41,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:01:41,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:01:41,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:01:41,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 19:01:41,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:01:41,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:01:41,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:01:41,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:01:41,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:01:41,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:01:41,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:01:41,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:01:41,340 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:01:41,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:01:41,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:01:41,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:01:41,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:01:41,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:01:41,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:01:41,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:01:41,341 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:01:41,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:01:41,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:01:41,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:01:41,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:01:41,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:01:41,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:01:41,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:01:41,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:01:41,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:01:41,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:01:41,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:01:41,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:01:41,344 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:01:41,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:01:41,344 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:01:41,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:01:41,344 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:01:41,344 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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2022-12-13 19:01:41,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:01:41,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:01:41,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:01:41,543 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:01:41,544 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:01:41,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-12-13 19:01:44,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:01:44,362 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:01:44,363 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-12-13 19:01:44,375 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data/e9c5bdb87/37df15a2d04e4dca8a58bc78270eebdf/FLAG055710da1 [2022-12-13 19:01:44,386 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data/e9c5bdb87/37df15a2d04e4dca8a58bc78270eebdf [2022-12-13 19:01:44,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:01:44,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:01:44,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:01:44,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:01:44,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:01:44,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:44" (1/1) ... [2022-12-13 19:01:44,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d3de27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:44, skipping insertion in model container [2022-12-13 19:01:44,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:44" (1/1) ... [2022-12-13 19:01:44,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:01:44,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:01:44,694 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:01:44,975 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:01:44,979 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:44,981 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:44,983 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:44,983 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:45,001 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 19:01:45,004 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:01:45,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:01:45,015 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:01:45,028 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:01:45,064 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:01:45,066 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:45,066 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:45,068 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:45,068 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:45,071 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 19:01:45,072 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:01:45,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:01:45,159 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:01:45,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45 WrapperNode [2022-12-13 19:01:45,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:01:45,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:01:45,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:01:45,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:01:45,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,199 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-13 19:01:45,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:01:45,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:01:45,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:01:45,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:01:45,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:01:45,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:01:45,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:01:45,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:01:45,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (1/1) ... [2022-12-13 19:01:45,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:01:45,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:01:45,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:01:45,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 19:01:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:01:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 19:01:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:01:45,389 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:01:45,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:01:45,499 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:01:45,503 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:01:45,504 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:01:45,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:45 BoogieIcfgContainer [2022-12-13 19:01:45,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:01:45,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:01:45,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:01:45,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:01:45,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:01:44" (1/3) ... [2022-12-13 19:01:45,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8cc391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:45, skipping insertion in model container [2022-12-13 19:01:45,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:45" (2/3) ... [2022-12-13 19:01:45,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8cc391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:45, skipping insertion in model container [2022-12-13 19:01:45,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:45" (3/3) ... [2022-12-13 19:01:45,514 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-12-13 19:01:45,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:01:45,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:01:45,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:01:45,569 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;@2595a50a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:01:45,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:01:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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 19:01:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 19:01:45,578 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:01:45,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:01:45,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:01:45,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:01:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-12-13 19:01:45,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:01:45,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801258337] [2022-12-13 19:01:45,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:01:45,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:01:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:01:45,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:01:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:01:45,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:01:45,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:01:45,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 19:01:45,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 19:01:45,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:01:45,732 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 19:01:45,735 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:01:45,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:01:45 BoogieIcfgContainer [2022-12-13 19:01:45,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:01:45,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:01:45,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:01:45,753 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:01:45,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:45" (3/4) ... [2022-12-13 19:01:45,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:01:45,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:01:45,757 INFO L158 Benchmark]: Toolchain (without parser) took 1368.02ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 83.3MB in the beginning and 96.8MB in the end (delta: -13.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-12-13 19:01:45,757 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory was 74.5MB in the beginning and 74.3MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:01:45,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.86ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 83.1MB in the beginning and 81.7MB in the end (delta: 1.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2022-12-13 19:01:45,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.25ms. Allocated memory is still 146.8MB. Free memory was 81.7MB in the beginning and 78.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:01:45,758 INFO L158 Benchmark]: Boogie Preprocessor took 17.41ms. Allocated memory is still 146.8MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:01:45,759 INFO L158 Benchmark]: RCFGBuilder took 287.77ms. Allocated memory is still 146.8MB. Free memory was 76.8MB in the beginning and 64.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:01:45,759 INFO L158 Benchmark]: TraceAbstraction took 242.58ms. Allocated memory is still 146.8MB. Free memory was 113.5MB in the beginning and 96.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 19:01:45,759 INFO L158 Benchmark]: Witness Printer took 3.22ms. Allocated memory is still 146.8MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:01:45,761 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 121.6MB. Free memory was 74.5MB in the beginning and 74.3MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.86ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 83.1MB in the beginning and 81.7MB in the end (delta: 1.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.25ms. Allocated memory is still 146.8MB. Free memory was 81.7MB in the beginning and 78.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.41ms. Allocated memory is still 146.8MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 287.77ms. Allocated memory is still 146.8MB. Free memory was 76.8MB in the beginning and 64.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 242.58ms. Allocated memory is still 146.8MB. Free memory was 113.5MB in the beginning and 96.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.22ms. Allocated memory is still 146.8MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 2.6kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741825:1073741830}, argv={1073741825:1073741830}, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:01:45,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- 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 19:01:47,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:01:47,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:01:47,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:01:47,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:01:47,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:01:47,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:01:47,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:01:47,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:01:47,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:01:47,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:01:47,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:01:47,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:01:47,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:01:47,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:01:47,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:01:47,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:01:47,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:01:47,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:01:47,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:01:47,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:01:47,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:01:47,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:01:47,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:01:47,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:01:47,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:01:47,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:01:47,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:01:47,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:01:47,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:01:47,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:01:47,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:01:47,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:01:47,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:01:47,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:01:47,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:01:47,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:01:47,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:01:47,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:01:47,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:01:47,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:01:47,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 19:01:47,580 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:01:47,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:01:47,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:01:47,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:01:47,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:01:47,581 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:01:47,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:01:47,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:01:47,582 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:01:47,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:01:47,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:01:47,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:01:47,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:01:47,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:01:47,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:01:47,583 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:01:47,583 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:01:47,584 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:01:47,584 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:01:47,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:01:47,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:01:47,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:01:47,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:01:47,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:01:47,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:01:47,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:01:47,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:01:47,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:01:47,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:01:47,585 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:01:47,586 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:01:47,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:01:47,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:01:47,586 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:01:47,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:01:47,586 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:01:47,587 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:01:47,587 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_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2022-12-13 19:01:47,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:01:47,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:01:47,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:01:47,820 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:01:47,820 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:01:47,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-12-13 19:01:50,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:01:50,643 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:01:50,644 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-12-13 19:01:50,662 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data/1e499bb88/9fba6b8c006e4c1892b27b9525da44be/FLAG45f13c184 [2022-12-13 19:01:50,916 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/data/1e499bb88/9fba6b8c006e4c1892b27b9525da44be [2022-12-13 19:01:50,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:01:50,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:01:50,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:01:50,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:01:50,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:01:50,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:50" (1/1) ... [2022-12-13 19:01:50,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f43e2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:50, skipping insertion in model container [2022-12-13 19:01:50,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:50" (1/1) ... [2022-12-13 19:01:50,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:01:50,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:01:51,195 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:01:51,489 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:01:51,493 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:51,494 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:51,495 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:51,495 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:51,510 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 19:01:51,512 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:01:51,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:01:51,524 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:01:51,538 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:01:51,571 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:01:51,578 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:51,579 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:01:51,581 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:51,582 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:01:51,587 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 19:01:51,588 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:01:51,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:01:51,724 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:01:51,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51 WrapperNode [2022-12-13 19:01:51,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:01:51,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:01:51,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:01:51,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:01:51,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,768 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 19:01:51,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:01:51,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:01:51,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:01:51,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:01:51,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:01:51,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:01:51,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:01:51,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:01:51,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (1/1) ... [2022-12-13 19:01:51,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:01:51,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:01:51,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:01:51,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:01:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 19:01:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 19:01:51,857 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 19:01:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:01:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:01:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:01:51,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:01:51,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:01:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:01:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 19:01:51,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 19:01:51,975 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:01:51,977 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:01:52,103 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:01:52,108 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:01:52,108 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:01:52,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:52 BoogieIcfgContainer [2022-12-13 19:01:52,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:01:52,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:01:52,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:01:52,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:01:52,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:01:50" (1/3) ... [2022-12-13 19:01:52,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8864074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:52, skipping insertion in model container [2022-12-13 19:01:52,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:51" (2/3) ... [2022-12-13 19:01:52,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8864074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:52, skipping insertion in model container [2022-12-13 19:01:52,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:52" (3/3) ... [2022-12-13 19:01:52,115 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-12-13 19:01:52,139 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:01:52,140 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:01:52,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:01:52,178 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;@35f877b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:01:52,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:01:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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 19:01:52,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 19:01:52,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:01:52,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:01:52,188 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:01:52,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:01:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-12-13 19:01:52,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:01:52,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129261786] [2022-12-13 19:01:52,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:01:52,206 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 19:01:52,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:01:52,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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 19:01:52,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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 19:01:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:01:52,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:01:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:01:52,395 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 19:01:52,397 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:01:52,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 19:01:52,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 19:01:52,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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 19:01:52,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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 19:01:52,617 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 19:01:52,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:01:52,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:01:52 BoogieIcfgContainer [2022-12-13 19:01:52,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:01:52,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:01:52,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:01:52,730 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:01:52,731 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:52" (3/4) ... [2022-12-13 19:01:52,739 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:01:52,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:01:52,743 INFO L158 Benchmark]: Toolchain (without parser) took 1822.06ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.9MB in the beginning and 38.4MB in the end (delta: -8.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-12-13 19:01:52,743 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory is still 22.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:01:52,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 804.95ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.8MB in the beginning and 34.6MB in the end (delta: -4.8MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-12-13 19:01:52,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.60ms. Allocated memory is still 67.1MB. Free memory was 34.6MB in the beginning and 31.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:01:52,748 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 67.1MB. Free memory was 31.5MB in the beginning and 29.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:01:52,750 INFO L158 Benchmark]: RCFGBuilder took 311.24ms. Allocated memory is still 67.1MB. Free memory was 29.4MB in the beginning and 29.2MB in the end (delta: 279.4kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-12-13 19:01:52,751 INFO L158 Benchmark]: TraceAbstraction took 617.18ms. Allocated memory is still 67.1MB. Free memory was 28.4MB in the beginning and 38.7MB in the end (delta: -10.3MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-12-13 19:01:52,752 INFO L158 Benchmark]: Witness Printer took 10.34ms. Allocated memory is still 67.1MB. Free memory was 38.7MB in the beginning and 38.4MB in the end (delta: 282.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:01:52,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 44.0MB. Free memory is still 22.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 804.95ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.8MB in the beginning and 34.6MB in the end (delta: -4.8MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.60ms. Allocated memory is still 67.1MB. Free memory was 34.6MB in the beginning and 31.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 67.1MB. Free memory was 31.5MB in the beginning and 29.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.24ms. Allocated memory is still 67.1MB. Free memory was 29.4MB in the beginning and 29.2MB in the end (delta: 279.4kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * TraceAbstraction took 617.18ms. Allocated memory is still 67.1MB. Free memory was 28.4MB in the beginning and 38.7MB in the end (delta: -10.3MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 10.34ms. Allocated memory is still 67.1MB. Free memory was 38.7MB in the beginning and 38.4MB in the end (delta: 282.5kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:01:52,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7527cb2-8249-4ff0-b730-eb8f1aafb1c0/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