./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg --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 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa --- 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-b5237d8 [2022-11-21 23:32:54,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:32:54,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:32:54,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:32:54,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:32:54,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:32:54,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:32:54,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:32:54,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:32:54,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:32:54,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:32:54,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:32:54,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:32:54,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:32:54,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:32:54,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:32:54,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:32:54,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:32:54,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:32:54,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:32:54,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:32:54,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:32:54,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:32:54,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:32:54,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:32:54,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:32:54,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:32:54,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:32:54,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:32:54,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:32:54,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:32:54,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:32:54,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:32:54,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:32:54,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:32:54,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:32:54,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:32:54,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:32:54,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:32:54,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:32:54,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:32:54,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:32:54,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:32:54,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:32:54,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:32:54,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:32:54,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:32:54,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:32:54,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:32:54,812 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:32:54,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:32:54,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:32:54,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:32:54,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:32:54,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:32:54,813 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:32:54,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:32:54,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:32:54,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:32:54,817 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:32:54,818 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:32:54,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:32:54,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:32:54,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:32:54,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:32:54,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:32:54,820 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:32:54,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:32:54,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:32:54,821 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_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa [2022-11-21 23:32:55,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:32:55,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:32:55,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:32:55,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:32:55,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:32:55,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2022-11-21 23:32:58,272 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:32:58,694 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:32:58,694 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2022-11-21 23:32:58,729 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data/c9b267c3d/400f9d9e0ed24fa8908a056a437578db/FLAG580abcf73 [2022-11-21 23:32:58,749 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data/c9b267c3d/400f9d9e0ed24fa8908a056a437578db [2022-11-21 23:32:58,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:32:58,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:32:58,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:32:58,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:32:58,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:32:58,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:32:58" (1/1) ... [2022-11-21 23:32:58,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574637ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:32:58, skipping insertion in model container [2022-11-21 23:32:58,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:32:58" (1/1) ... [2022-11-21 23:32:58,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:32:58,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:32:59,307 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:32:59,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:32:59,873 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:32:59,916 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:33:00,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:33:00,163 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:33:00,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00 WrapperNode [2022-11-21 23:33:00,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:33:00,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:33:00,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:33:00,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:33:00,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,267 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-21 23:33:00,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:33:00,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:33:00,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:33:00,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:33:00,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:33:00,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:33:00,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:33:00,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:33:00,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:33:00,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:33:00,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:33:00,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:33:00,397 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 23:33:00,398 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 23:33:00,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 23:33:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:33:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 23:33:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:33:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:33:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:33:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 23:33:00,400 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 23:33:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:33:00,668 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:33:00,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:33:00,851 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:33:00,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:33:00,903 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 23:33:00,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:33:00 BoogieIcfgContainer [2022-11-21 23:33:00,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:33:00,907 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:33:00,907 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:33:00,917 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:33:00,918 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:33:00" (1/1) ... [2022-11-21 23:33:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:33:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:33:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-11-21 23:33:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-21 23:33:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:33:00,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:33:00,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:33:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:33:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:33:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:33:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-11-21 23:33:01,325 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-21 23:33:01,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 23:33:01,326 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:33:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:33:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:33:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:33:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:33:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2022-11-21 23:33:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-21 23:33:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 23:33:01,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:33:01,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:33:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:33:01,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:33:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:33:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:33:01,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:33:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:33:01,910 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-11-21 23:33:01,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:33:01 ImpRootNode [2022-11-21 23:33:01,959 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:33:01,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:33:01,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:33:01,961 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:33:01,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:33:00" (3/4) ... [2022-11-21 23:33:01,968 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 23:33:01,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:33:01,971 INFO L158 Benchmark]: Toolchain (without parser) took 3215.44ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 112.8MB in the end (delta: 8.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-21 23:33:01,972 INFO L158 Benchmark]: CDTParser took 1.70ms. Allocated memory is still 117.4MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:33:01,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1408.54ms. Allocated memory is still 163.6MB. Free memory was 120.5MB in the beginning and 73.7MB in the end (delta: 46.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-21 23:33:01,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.75ms. Allocated memory is still 163.6MB. Free memory was 73.7MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 23:33:01,975 INFO L158 Benchmark]: Boogie Preprocessor took 35.06ms. Allocated memory is still 163.6MB. Free memory was 70.8MB in the beginning and 69.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:33:01,977 INFO L158 Benchmark]: RCFGBuilder took 601.93ms. Allocated memory is still 163.6MB. Free memory was 69.5MB in the beginning and 54.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:33:01,978 INFO L158 Benchmark]: CodeCheck took 1051.78ms. Allocated memory is still 163.6MB. Free memory was 54.8MB in the beginning and 112.8MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:33:01,983 INFO L158 Benchmark]: Witness Printer took 9.33ms. Allocated memory is still 163.6MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:33:01,991 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 30 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 2 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, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1580] 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=18, argc=18, 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_predec_16_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 1 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1567] COND TRUE 1 VAL [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] [L1570] --data VAL [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 1.70ms. Allocated memory is still 117.4MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1408.54ms. Allocated memory is still 163.6MB. Free memory was 120.5MB in the beginning and 73.7MB in the end (delta: 46.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.75ms. Allocated memory is still 163.6MB. Free memory was 73.7MB in the beginning and 70.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.06ms. Allocated memory is still 163.6MB. Free memory was 70.8MB in the beginning and 69.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 601.93ms. Allocated memory is still 163.6MB. Free memory was 69.5MB in the beginning and 54.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1051.78ms. Allocated memory is still 163.6MB. Free memory was 54.8MB in the beginning and 112.8MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.33ms. Allocated memory is still 163.6MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 23:33:02,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/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_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg --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 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa --- 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-b5237d8 [2022-11-21 23:33:04,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:33:04,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:33:04,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:33:04,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:33:04,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:33:04,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:33:04,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:33:04,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:33:04,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:33:04,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:33:04,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:33:04,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:33:04,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:33:04,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:33:04,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:33:04,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:33:04,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:33:04,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:33:04,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:33:04,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:33:04,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:33:04,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:33:04,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:33:04,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:33:04,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:33:04,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:33:04,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:33:04,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:33:04,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:33:04,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:33:04,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:33:04,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:33:04,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:33:04,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:33:04,752 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:33:04,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:33:04,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:33:04,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:33:04,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:33:04,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:33:04,759 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-21 23:33:04,808 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:33:04,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:33:04,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:33:04,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:33:04,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:33:04,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:33:04,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:33:04,812 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:33:04,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:33:04,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:33:04,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:33:04,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:33:04,815 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 23:33:04,815 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 23:33:04,815 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:33:04,815 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 23:33:04,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:33:04,816 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:33:04,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:33:04,816 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:33:04,816 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:33:04,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:33:04,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:33:04,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:33:04,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:33:04,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:33:04,818 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-21 23:33:04,818 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 23:33:04,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:33:04,819 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-21 23:33:04,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 23:33:04,819 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_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa [2022-11-21 23:33:05,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:33:05,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:33:05,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:33:05,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:33:05,254 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:33:05,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2022-11-21 23:33:08,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:33:09,005 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:33:09,006 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2022-11-21 23:33:09,029 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data/2f3f47f6b/352684f3277f4e5fa60b15d1b4a0e420/FLAGb96b308c4 [2022-11-21 23:33:09,056 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1756a5ce-8b40-4bce-afca-acaa982e2887/bin/ukojak-jW3SillKbg/data/2f3f47f6b/352684f3277f4e5fa60b15d1b4a0e420 [2022-11-21 23:33:09,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:33:09,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:33:09,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:33:09,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:33:09,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:33:09,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:33:09" (1/1) ... [2022-11-21 23:33:09,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3214e071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:33:09, skipping insertion in model container [2022-11-21 23:33:09,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:33:09" (1/1) ... [2022-11-21 23:33:09,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:33:09,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:33:09,569 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:33:09,814 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) [2022-11-21 23:33:09,821 INFO L158 Benchmark]: Toolchain (without parser) took 758.70ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 29.5MB in the beginning and 47.8MB in the end (delta: -18.3MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-21 23:33:09,822 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:33:09,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.30ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 47.8MB in the end (delta: -18.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-21 23:33:09,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 62.9MB. Free memory was 41.2MB in the beginning and 41.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.30ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 47.8MB in the end (delta: -18.5MB). Peak memory consumption was 4.0MB. 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.