./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f --- 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-6b4ec56 [2022-11-20 16:28:52,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:28:52,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:28:52,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:28:52,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:28:52,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:28:52,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:28:52,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:28:52,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:28:52,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:28:52,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:28:52,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:28:52,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:28:52,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:28:52,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:28:52,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:28:52,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:28:52,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:28:52,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:28:52,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:28:52,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:28:52,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:28:52,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:28:52,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:28:52,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:28:52,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:28:52,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:28:52,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:28:52,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:28:52,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:28:52,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:28:52,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:28:52,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:28:52,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:28:52,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:28:52,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:28:52,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:28:52,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:28:52,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:28:52,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:28:52,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:28:52,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 16:28:52,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:28:52,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:28:52,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:28:52,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:28:52,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:28:52,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:28:52,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:28:52,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:28:52,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:28:52,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:28:52,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:28:52,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:28:52,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:28:52,354 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:28:52,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:28:52,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:28:52,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:28:52,355 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:28:52,356 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:28:52,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:28:52,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:28:52,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:28:52,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:28:52,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:28:52,357 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:28:52,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:28:52,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:28:52,358 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_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f [2022-11-20 16:28:52,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:28:52,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:28:52,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:28:52,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:28:52,736 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:28:52,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2022-11-20 16:28:55,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:28:56,157 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:28:56,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2022-11-20 16:28:56,179 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data/177807aa7/b12730bea33e440cac069abb906715b8/FLAG70022fef8 [2022-11-20 16:28:56,195 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data/177807aa7/b12730bea33e440cac069abb906715b8 [2022-11-20 16:28:56,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:28:56,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:28:56,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:28:56,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:28:56,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:28:56,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:28:56" (1/1) ... [2022-11-20 16:28:56,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627b5246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:56, skipping insertion in model container [2022-11-20 16:28:56,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:28:56" (1/1) ... [2022-11-20 16:28:56,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:28:56,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:28:56,713 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:28:57,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:28:57,334 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:28:57,380 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:28:57,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:28:57,643 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:28:57,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57 WrapperNode [2022-11-20 16:28:57,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:28:57,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:28:57,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:28:57,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:28:57,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,739 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2022-11-20 16:28:57,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:28:57,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:28:57,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:28:57,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:28:57,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:28:57,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:28:57,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:28:57,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:28:57,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:28:57" (1/1) ... [2022-11-20 16:28:57,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:28:57,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:28:57,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:28:57,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:28:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 16:28:57,908 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 16:28:57,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 16:28:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:28:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 16:28:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:28:57,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:28:57,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:28:57,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:28:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 16:28:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:28:58,096 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:28:58,098 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:28:58,284 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:28:58,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:28:58,328 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 16:28:58,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:28:58 BoogieIcfgContainer [2022-11-20 16:28:58,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:28:58,332 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:28:58,332 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:28:58,343 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:28:58,343 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:28:58" (1/1) ... [2022-11-20 16:28:58,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:28:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:28:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-11-20 16:28:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-20 16:28:58,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 16:28:58,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:28:58,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:28:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:28:58,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:28:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:28:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2022-11-20 16:28:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-20 16:28:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 16:28:59,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:28:59,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:28:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:28:59,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:28:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:28:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:28:59,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:28:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:28:59,196 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-20 16:28:59,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:28:59 ImpRootNode [2022-11-20 16:28:59,226 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:28:59,227 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:28:59,227 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:28:59,227 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:28:59,228 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:28:58" (3/4) ... [2022-11-20 16:28:59,231 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 16:28:59,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:28:59,232 INFO L158 Benchmark]: Toolchain (without parser) took 3032.95ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 92.3MB in the beginning and 96.8MB in the end (delta: -4.4MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2022-11-20 16:28:59,232 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 140.5MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:28:59,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1444.13ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 91.8MB in the beginning and 150.3MB in the end (delta: -58.4MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-20 16:28:59,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.35ms. Allocated memory is still 205.5MB. Free memory was 150.3MB in the beginning and 147.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:28:59,235 INFO L158 Benchmark]: Boogie Preprocessor took 60.95ms. Allocated memory is still 205.5MB. Free memory was 147.1MB in the beginning and 146.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:28:59,235 INFO L158 Benchmark]: RCFGBuilder took 528.12ms. Allocated memory is still 205.5MB. Free memory was 146.1MB in the beginning and 130.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 16:28:59,236 INFO L158 Benchmark]: CodeCheck took 894.19ms. Allocated memory is still 205.5MB. Free memory was 130.3MB in the beginning and 97.8MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 16:28:59,237 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 205.5MB. Free memory was 97.8MB in the beginning and 96.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:28:59,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=29, argc=29, argv={28:27}, argv={28:27}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_52c_badSink(data) [L1582] --data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 140.5MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1444.13ms. Allocated memory was 140.5MB in the beginning and 205.5MB in the end (delta: 65.0MB). Free memory was 91.8MB in the beginning and 150.3MB in the end (delta: -58.4MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.35ms. Allocated memory is still 205.5MB. Free memory was 150.3MB in the beginning and 147.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.95ms. Allocated memory is still 205.5MB. Free memory was 147.1MB in the beginning and 146.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.12ms. Allocated memory is still 205.5MB. Free memory was 146.1MB in the beginning and 130.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 894.19ms. Allocated memory is still 205.5MB. Free memory was 130.3MB in the beginning and 97.8MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 205.5MB. Free memory was 97.8MB in the beginning and 96.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 16:28:59,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f --- 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-6b4ec56 [2022-11-20 16:29:01,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:29:01,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:29:01,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:29:01,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:29:01,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:29:01,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:29:01,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:29:01,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:29:01,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:29:01,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:29:01,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:29:01,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:29:01,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:29:01,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:29:01,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:29:01,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:29:01,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:29:01,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:29:01,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:29:01,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:29:01,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:29:01,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:29:01,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:29:01,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:29:01,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:29:01,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:29:01,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:29:01,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:29:01,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:29:01,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:29:01,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:29:01,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:29:01,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:29:01,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:29:01,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:29:01,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:29:01,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:29:01,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:29:01,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:29:01,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:29:01,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-20 16:29:02,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:29:02,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:29:02,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:29:02,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:29:02,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:29:02,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:29:02,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:29:02,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:29:02,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:29:02,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:29:02,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:29:02,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:29:02,012 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 16:29:02,012 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 16:29:02,013 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:29:02,013 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 16:29:02,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:29:02,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:29:02,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:29:02,014 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:29:02,015 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:29:02,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:29:02,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:29:02,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:29:02,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:29:02,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:29:02,017 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 16:29:02,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 16:29:02,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:29:02,018 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-20 16:29:02,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 16:29:02,018 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_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f [2022-11-20 16:29:02,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:29:02,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:29:02,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:29:02,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:29:02,454 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:29:02,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2022-11-20 16:29:05,577 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:29:06,054 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:29:06,054 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2022-11-20 16:29:06,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data/5f77dc011/609c1efdc2204453b6778af906571621/FLAG35ecd81a0 [2022-11-20 16:29:06,103 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4649c672-7d2c-4546-8aea-73333f547d2d/bin/ukojak-pZX7IvK2PQ/data/5f77dc011/609c1efdc2204453b6778af906571621 [2022-11-20 16:29:06,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:29:06,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:29:06,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:29:06,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:29:06,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:29:06,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:29:06" (1/1) ... [2022-11-20 16:29:06,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7edb6d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:29:06, skipping insertion in model container [2022-11-20 16:29:06,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:29:06" (1/1) ... [2022-11-20 16:29:06,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:29:06,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:29:06,653 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:29:07,079 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:357) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 16:29:07,086 INFO L158 Benchmark]: Toolchain (without parser) took 977.48ms. Allocated memory is still 88.1MB. Free memory was 63.0MB in the beginning and 47.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 16:29:07,087 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:29:07,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 974.99ms. Allocated memory is still 88.1MB. Free memory was 62.7MB in the beginning and 47.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 16:29:07,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 43.2MB in the beginning and 43.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 974.99ms. Allocated memory is still 88.1MB. Free memory was 62.7MB in the beginning and 47.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.