./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_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_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f --- 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 [2022-12-14 05:28:21,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:28:21,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:28:21,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:28:21,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:28:21,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:28:21,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:28:21,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:28:21,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:28:21,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:28:21,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:28:21,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:28:21,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:28:21,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:28:21,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:28:21,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:28:21,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:28:21,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:28:21,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:28:21,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:28:21,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:28:21,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:28:21,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:28:21,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:28:21,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:28:21,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:28:21,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:28:21,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:28:21,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:28:21,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:28:21,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:28:21,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:28:21,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:28:21,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:28:21,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:28:21,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:28:21,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:28:21,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:28:21,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:28:21,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:28:21,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:28:21,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:28:21,268 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:28:21,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:28:21,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:28:21,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:28:21,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:28:21,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:28:21,269 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:28:21,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:28:21,270 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:28:21,270 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:28:21,270 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:28:21,270 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:28:21,270 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:28:21,271 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:28:21,271 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:28:21,271 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:28:21,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:28:21,271 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:28:21,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:28:21,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:28:21,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:28:21,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:28:21,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:28:21,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:28:21,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:28:21,273 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:28:21,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:28:21,274 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:28:21,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:28:21,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:28:21,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:28:21,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:28:21,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:28:21,275 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:28:21,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:28:21,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:28:21,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:28:21,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:28:21,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:28:21,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:28:21,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f [2022-12-14 05:28:21,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:28:21,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:28:21,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:28:21,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:28:21,460 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:28:21,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i [2022-12-14 05:28:24,030 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:28:24,283 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:28:24,283 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i [2022-12-14 05:28:24,299 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data/4d699f259/0fa15600cee0488f81749ac65be35bad/FLAG77f2932d0 [2022-12-14 05:28:24,312 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data/4d699f259/0fa15600cee0488f81749ac65be35bad [2022-12-14 05:28:24,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:28:24,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:28:24,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:28:24,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:28:24,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:28:24,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:28:24" (1/1) ... [2022-12-14 05:28:24,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cb4c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:24, skipping insertion in model container [2022-12-14 05:28:24,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:28:24" (1/1) ... [2022-12-14 05:28:24,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:28:24,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:28:24,611 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:28:24,900 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:28:24,905 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:24,907 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:24,909 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:24,910 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:24,933 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:28:24,939 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:28:24,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:28:24,949 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:28:24,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:28:25,008 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:28:25,009 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:25,010 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:25,012 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:25,013 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:25,016 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:28:25,018 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:28:25,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:28:25,114 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:28:25,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25 WrapperNode [2022-12-14 05:28:25,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:28:25,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:28:25,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:28:25,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:28:25,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,151 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-12-14 05:28:25,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:28:25,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:28:25,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:28:25,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:28:25,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:28:25,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:28:25,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:28:25,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:28:25,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (1/1) ... [2022-12-14 05:28:25,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:28:25,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:28:25,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:28:25,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:28:25,232 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 05:28:25,232 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:28:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:28:25,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:28:25,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:28:25,356 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:28:25,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:28:25,469 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:28:25,498 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:28:25,498 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:28:25,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:28:25 BoogieIcfgContainer [2022-12-14 05:28:25,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:28:25,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:28:25,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:28:25,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:28:25,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:28:24" (1/3) ... [2022-12-14 05:28:25,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67af0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:28:25, skipping insertion in model container [2022-12-14 05:28:25,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:25" (2/3) ... [2022-12-14 05:28:25,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67af0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:28:25, skipping insertion in model container [2022-12-14 05:28:25,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:28:25" (3/3) ... [2022-12-14 05:28:25,509 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i [2022-12-14 05:28:25,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:28:25,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:28:25,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:28:25,572 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=FINITE_AUTOMATA, 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;@322cd03e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:28:25,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:28:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-14 05:28:25,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:28:25,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:28:25,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:28:25,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:28:25,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:28:25,589 INFO L85 PathProgramCache]: Analyzing trace with hash -822638428, now seen corresponding path program 1 times [2022-12-14 05:28:25,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:28:25,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074201823] [2022-12-14 05:28:25,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:28:25,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:28:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:28:25,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:28:25,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:28:25,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074201823] [2022-12-14 05:28:25,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074201823] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:28:25,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:28:25,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:28:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816033297] [2022-12-14 05:28:25,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:28:25,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:28:25,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:28:25,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:28:25,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:28:25,819 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 05:28:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:28:25,850 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 05:28:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:28:25,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2022-12-14 05:28:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:28:25,857 INFO L225 Difference]: With dead ends: 21 [2022-12-14 05:28:25,858 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 05:28:25,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:28:25,862 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:28:25,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:28:25,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 05:28:25,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 05:28:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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) [2022-12-14 05:28:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 05:28:25,896 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-12-14 05:28:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:28:25,897 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 05:28:25,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 05:28:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 05:28:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 05:28:25,898 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:28:25,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:28:25,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:28:25,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:28:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:28:25,899 INFO L85 PathProgramCache]: Analyzing trace with hash 268012565, now seen corresponding path program 1 times [2022-12-14 05:28:25,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:28:25,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040736045] [2022-12-14 05:28:25,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:28:25,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:28:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:28:25,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:28:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:28:25,952 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:28:25,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:28:25,954 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 05:28:25,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 05:28:25,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:28:25,959 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 05:28:25,962 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:28:25,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:28:25 BoogieIcfgContainer [2022-12-14 05:28:25,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:28:25,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:28:25,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:28:25,979 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:28:25,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:28:25" (3/4) ... [2022-12-14 05:28:25,982 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:28:25,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:28:25,983 INFO L158 Benchmark]: Toolchain (without parser) took 1666.54ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 82.5MB in the beginning and 109.7MB in the end (delta: -27.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:25,983 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:25,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 797.13ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 82.5MB in the beginning and 100.0MB in the end (delta: -17.5MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2022-12-14 05:28:25,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.36ms. Allocated memory is still 151.0MB. Free memory was 100.0MB in the beginning and 97.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:28:25,984 INFO L158 Benchmark]: Boogie Preprocessor took 17.69ms. Allocated memory is still 151.0MB. Free memory was 97.5MB in the beginning and 95.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:28:25,984 INFO L158 Benchmark]: RCFGBuilder took 330.57ms. Allocated memory is still 151.0MB. Free memory was 95.9MB in the beginning and 81.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 05:28:25,984 INFO L158 Benchmark]: TraceAbstraction took 475.86ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 109.7MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:25,985 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 151.0MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:25,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 797.13ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 82.5MB in the beginning and 100.0MB in the end (delta: -17.5MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.36ms. Allocated memory is still 151.0MB. Free memory was 100.0MB in the beginning and 97.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.69ms. Allocated memory is still 151.0MB. Free memory was 97.5MB in the beginning and 95.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.57ms. Allocated memory is still 151.0MB. Free memory was 95.9MB in the beginning and 81.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 475.86ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 109.7MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 151.0MB. Free memory is still 109.7MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. 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); [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741830:1073741829}, argv={1073741830:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [data=1073741824, data=1073741824, dataCopy=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data > 0 VAL [data=1073741824, data=1073741824, dataCopy=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [data=1073741824, data=1073741824, dataCopy=1073741824, 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: 1568]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 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 [2022-12-14 05:28:26,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f --- 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 [2022-12-14 05:28:27,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:28:27,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:28:27,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:28:27,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:28:27,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:28:27,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:28:27,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:28:27,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:28:27,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:28:27,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:28:27,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:28:27,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:28:27,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:28:27,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:28:27,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:28:27,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:28:27,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:28:27,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:28:27,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:28:27,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:28:27,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:28:27,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:28:27,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:28:27,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:28:27,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:28:27,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:28:27,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:28:27,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:28:27,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:28:27,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:28:27,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:28:27,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:28:27,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:28:27,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:28:27,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:28:27,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:28:27,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:28:27,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:28:27,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:28:27,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:28:27,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 05:28:27,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:28:27,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:28:27,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:28:27,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:28:27,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:28:27,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:28:27,981 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:28:27,981 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:28:27,981 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:28:27,981 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:28:27,981 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:28:27,982 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:28:27,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:28:27,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:28:27,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:28:27,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:28:27,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:28:27,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:28:27,983 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:28:27,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:28:27,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:28:27,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:28:27,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:28:27,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:28:27,986 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031a39fc0cbc0e470459104bc4288cc7a428728d1d79e0fde20ce92c284d813f [2022-12-14 05:28:28,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:28:28,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:28:28,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:28:28,229 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:28:28,229 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:28:28,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i [2022-12-14 05:28:30,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:28:31,106 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:28:31,107 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i [2022-12-14 05:28:31,127 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data/c23e65876/41268ceb9ff04b11bb87a03cc717c667/FLAG4a194139a [2022-12-14 05:28:31,139 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/data/c23e65876/41268ceb9ff04b11bb87a03cc717c667 [2022-12-14 05:28:31,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:28:31,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:28:31,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:28:31,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:28:31,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:28:31,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:31,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28252ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31, skipping insertion in model container [2022-12-14 05:28:31,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:31,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:28:31,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:28:31,445 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:28:31,756 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:28:31,760 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:31,761 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:31,763 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:31,764 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:31,779 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:28:31,784 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:28:31,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:28:31,798 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:28:31,815 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:28:31,865 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:28:31,866 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:31,867 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:28:31,869 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:31,870 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:28:31,874 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:28:31,876 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:28:31,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:28:31,963 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:28:31,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31 WrapperNode [2022-12-14 05:28:31,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:28:31,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:28:31,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:28:31,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:28:31,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:31,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,019 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-12-14 05:28:32,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:28:32,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:28:32,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:28:32,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:28:32,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,043 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:28:32,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:28:32,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:28:32,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:28:32,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (1/1) ... [2022-12-14 05:28:32,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:28:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:28:32,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:28:32,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:28:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 05:28:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:28:32,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:28:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:28:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:28:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:28:32,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:28:32,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:28:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:28:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:28:32,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 05:28:32,220 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:28:32,222 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:28:32,340 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:28:32,344 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:28:32,345 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:28:32,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:28:32 BoogieIcfgContainer [2022-12-14 05:28:32,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:28:32,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:28:32,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:28:32,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:28:32,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:28:31" (1/3) ... [2022-12-14 05:28:32,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6465a02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:28:32, skipping insertion in model container [2022-12-14 05:28:32,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:28:31" (2/3) ... [2022-12-14 05:28:32,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6465a02f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:28:32, skipping insertion in model container [2022-12-14 05:28:32,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:28:32" (3/3) ... [2022-12-14 05:28:32,354 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_31_bad.i [2022-12-14 05:28:32,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:28:32,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:28:32,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:28:32,414 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=FINITE_AUTOMATA, 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;@398d6d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:28:32,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:28:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:28:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 05:28:32,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:28:32,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:28:32,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:28:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:28:32,429 INFO L85 PathProgramCache]: Analyzing trace with hash 588292234, now seen corresponding path program 1 times [2022-12-14 05:28:32,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:28:32,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61222809] [2022-12-14 05:28:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:28:32,441 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 [2022-12-14 05:28:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:28:32,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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) [2022-12-14 05:28:32,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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 [2022-12-14 05:28:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:28:32,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:28:32,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:28:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:28:32,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:28:32,603 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:28:32,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61222809] [2022-12-14 05:28:32,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61222809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:28:32,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:28:32,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:28:32,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312874278] [2022-12-14 05:28:32,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:28:32,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:28:32,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:28:32,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:28:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:28:32,647 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:28:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:28:32,689 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-12-14 05:28:32,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:28:32,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 05:28:32,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:28:32,695 INFO L225 Difference]: With dead ends: 29 [2022-12-14 05:28:32,696 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 05:28:32,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:28:32,700 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:28:32,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:28:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 05:28:32,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 05:28:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 05:28:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 05:28:32,723 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-14 05:28:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:28:32,724 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 05:28:32,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:28:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 05:28:32,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 05:28:32,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:28:32,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:28:32,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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 [2022-12-14 05:28:32,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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 [2022-12-14 05:28:32,927 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:28:32,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:28:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1057190127, now seen corresponding path program 1 times [2022-12-14 05:28:32,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:28:32,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378621740] [2022-12-14 05:28:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:28:32,935 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 [2022-12-14 05:28:32,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:28:32,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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) [2022-12-14 05:28:32,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 05:28:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:28:33,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:28:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:28:33,123 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 05:28:33,123 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:28:33,124 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 05:28:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 05:28:33,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 05:28:33,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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 [2022-12-14 05:28:33,336 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 05:28:33,346 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:28:33,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:28:33 BoogieIcfgContainer [2022-12-14 05:28:33,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:28:33,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:28:33,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:28:33,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:28:33,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:28:32" (3/4) ... [2022-12-14 05:28:33,385 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:28:33,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:28:33,386 INFO L158 Benchmark]: Toolchain (without parser) took 2243.16ms. Allocated memory is still 81.8MB. Free memory was 60.7MB in the beginning and 39.4MB in the end (delta: 21.3MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-12-14 05:28:33,386 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:33,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 819.75ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 34.9MB in the end (delta: 25.5MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2022-12-14 05:28:33,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.05ms. Allocated memory is still 81.8MB. Free memory was 34.9MB in the beginning and 55.0MB in the end (delta: -20.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-12-14 05:28:33,387 INFO L158 Benchmark]: Boogie Preprocessor took 27.52ms. Allocated memory is still 81.8MB. Free memory was 54.8MB in the beginning and 52.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:28:33,388 INFO L158 Benchmark]: RCFGBuilder took 297.67ms. Allocated memory is still 81.8MB. Free memory was 52.7MB in the beginning and 38.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 05:28:33,388 INFO L158 Benchmark]: TraceAbstraction took 1033.71ms. Allocated memory is still 81.8MB. Free memory was 38.4MB in the beginning and 39.7MB in the end (delta: -1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:33,388 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.4MB in the end (delta: 380.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:28:33,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 819.75ms. Allocated memory is still 81.8MB. Free memory was 60.4MB in the beginning and 34.9MB in the end (delta: 25.5MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.05ms. Allocated memory is still 81.8MB. Free memory was 34.9MB in the beginning and 55.0MB in the end (delta: -20.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.52ms. Allocated memory is still 81.8MB. Free memory was 54.8MB in the beginning and 52.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.67ms. Allocated memory is still 81.8MB. Free memory was 52.7MB in the beginning and 38.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1033.71ms. Allocated memory is still 81.8MB. Free memory was 38.4MB in the beginning and 39.7MB in the end (delta: -1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.4MB in the end (delta: 380.2kB). 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. 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] [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [data=1082130432, data=1082130432, dataCopy=1082130432, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data > 0 VAL [data=1082130432, data=1082130432, dataCopy=1082130432, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [data=1082130432, data=1082130432, dataCopy=1082130432, 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: 1568]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 2 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 [2022-12-14 05:28:33,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9695fd-32d2-46ef-9051-6a49d124e983/bin/utaipan-gh47qXpMRh/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