./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_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_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/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_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/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_efb909b0-e9df-47d4-b697-5988fe31d09e/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 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 --- 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 23:03:17,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:03:17,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:03:17,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:03:17,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:03:17,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:03:17,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:03:17,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:03:17,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:03:17,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:03:17,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:03:17,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:03:17,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:03:17,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:03:17,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:03:17,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:03:17,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:03:17,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:03:17,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:03:17,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:03:17,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:03:17,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:03:17,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:03:17,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:03:17,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:03:17,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:03:17,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:03:17,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:03:17,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:03:17,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:03:17,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:03:17,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:03:17,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:03:17,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:03:17,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:03:17,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:03:17,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:03:17,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:03:17,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:03:17,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:03:17,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:03:17,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:03:17,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:03:17,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:03:17,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:03:17,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:03:17,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:03:17,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:03:17,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:03:17,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:03:17,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:03:17,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:03:17,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:03:17,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:03:17,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:03:17,706 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:03:17,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:03:17,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:03:17,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:03:17,707 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:03:17,707 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:03:17,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:03:17,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:03:17,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:03:17,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:03:17,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:03:17,709 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:03:17,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:03:17,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:03:17,710 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_efb909b0-e9df-47d4-b697-5988fe31d09e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 [2022-11-21 23:03:17,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:03:18,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:03:18,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:03:18,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:03:18,047 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:03:18,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2022-11-21 23:03:21,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:03:21,557 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:03:21,559 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2022-11-21 23:03:21,591 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data/0e67b9df5/c6dc6c4a61b94afaa34330dbd5a5ec46/FLAG83a5502cd [2022-11-21 23:03:21,608 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data/0e67b9df5/c6dc6c4a61b94afaa34330dbd5a5ec46 [2022-11-21 23:03:21,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:03:21,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:03:21,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:03:21,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:03:21,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:03:21,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:03:21" (1/1) ... [2022-11-21 23:03:21,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459d130a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:21, skipping insertion in model container [2022-11-21 23:03:21,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:03:21" (1/1) ... [2022-11-21 23:03:21,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:03:21,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:03:22,120 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:03:22,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:03:22,808 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:03:22,829 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:03:22,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:03:23,084 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:03:23,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23 WrapperNode [2022-11-21 23:03:23,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:03:23,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:03:23,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:03:23,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:03:23,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,172 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-11-21 23:03:23,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:03:23,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:03:23,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:03:23,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:03:23,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,212 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:03:23,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:03:23,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:03:23,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:03:23,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:03:23,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:03:23,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:03:23,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:03:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 23:03:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 23:03:23,296 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 23:03:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:03:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 23:03:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:03:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:03:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:03:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 23:03:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 23:03:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:03:23,457 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:03:23,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:03:23,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:03:23,601 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:03:23,601 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 23:03:23,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:03:23 BoogieIcfgContainer [2022-11-21 23:03:23,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:03:23,605 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:03:23,605 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:03:23,622 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:03:23,638 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:03:23" (1/1) ... [2022-11-21 23:03:23,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:03:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:03:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-11-21 23:03:23,716 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-21 23:03:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:03:23,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:03:23,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:03:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:03:24,099 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 23:03:24,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:03:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-11-21 23:03:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-21 23:03:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 23:03:24,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:03:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:03:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:03:24,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:03:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:03:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:03:24,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:03:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:03:24,395 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-21 23:03:24,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:03:24 ImpRootNode [2022-11-21 23:03:24,426 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:03:24,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:03:24,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:03:24,427 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:03:24,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:03:23" (3/4) ... [2022-11-21 23:03:24,431 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 23:03:24,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:03:24,432 INFO L158 Benchmark]: Toolchain (without parser) took 2817.63ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 113.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-11-21 23:03:24,433 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 104.9MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:03:24,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1469.04ms. Allocated memory is still 153.1MB. Free memory was 118.3MB in the beginning and 107.1MB in the end (delta: 11.3MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-11-21 23:03:24,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.53ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 103.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 23:03:24,435 INFO L158 Benchmark]: Boogie Preprocessor took 42.95ms. Allocated memory is still 153.1MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:03:24,436 INFO L158 Benchmark]: RCFGBuilder took 387.67ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 87.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:03:24,436 INFO L158 Benchmark]: CodeCheck took 820.99ms. Allocated memory is still 153.1MB. Free memory was 87.5MB in the beginning and 113.9MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:03:24,437 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 153.1MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:03:24,440 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 51 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, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. 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); [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] --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 0.57ms. Allocated memory is still 104.9MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1469.04ms. Allocated memory is still 153.1MB. Free memory was 118.3MB in the beginning and 107.1MB in the end (delta: 11.3MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.53ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 103.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.95ms. Allocated memory is still 153.1MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.67ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 87.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 820.99ms. Allocated memory is still 153.1MB. Free memory was 87.5MB in the beginning and 113.9MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 153.1MB. Free memory is still 113.9MB. 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 23:03:24,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/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_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/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_efb909b0-e9df-47d4-b697-5988fe31d09e/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 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 --- 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 23:03:26,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:03:26,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:03:26,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:03:26,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:03:26,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:03:26,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:03:26,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:03:26,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:03:26,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:03:26,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:03:26,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:03:26,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:03:26,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:03:26,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:03:26,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:03:26,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:03:26,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:03:26,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:03:26,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:03:26,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:03:26,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:03:26,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:03:26,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:03:27,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:03:27,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:03:27,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:03:27,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:03:27,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:03:27,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:03:27,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:03:27,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:03:27,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:03:27,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:03:27,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:03:27,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:03:27,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:03:27,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:03:27,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:03:27,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:03:27,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:03:27,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-21 23:03:27,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:03:27,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:03:27,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:03:27,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:03:27,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:03:27,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:03:27,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:03:27,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:03:27,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:03:27,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:03:27,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:03:27,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:03:27,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 23:03:27,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 23:03:27,069 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:03:27,070 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 23:03:27,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:03:27,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:03:27,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:03:27,070 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:03:27,071 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:03:27,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:03:27,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:03:27,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:03:27,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:03:27,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:03:27,072 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-21 23:03:27,072 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 23:03:27,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:03:27,073 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-21 23:03:27,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 23:03:27,074 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_efb909b0-e9df-47d4-b697-5988fe31d09e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 [2022-11-21 23:03:27,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:03:27,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:03:27,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:03:27,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:03:27,511 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:03:27,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2022-11-21 23:03:30,640 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:03:31,061 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:03:31,068 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2022-11-21 23:03:31,102 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data/33389c4ee/5acdd7c93dcb40aeaee23c0137512a5e/FLAG65b9d0b3f [2022-11-21 23:03:31,118 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efb909b0-e9df-47d4-b697-5988fe31d09e/bin/ukojak-jW3SillKbg/data/33389c4ee/5acdd7c93dcb40aeaee23c0137512a5e [2022-11-21 23:03:31,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:03:31,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:03:31,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:03:31,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:03:31,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:03:31,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:03:31" (1/1) ... [2022-11-21 23:03:31,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397a33d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:03:31, skipping insertion in model container [2022-11-21 23:03:31,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:03:31" (1/1) ... [2022-11-21 23:03:31,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:03:31,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:03:31,637 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:03:31,986 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 23:03:31,994 INFO L158 Benchmark]: Toolchain (without parser) took 870.08ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 50.7MB in the end (delta: -5.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-21 23:03:31,994 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 73.4MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:03:31,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 867.88ms. Allocated memory is still 73.4MB. Free memory was 45.5MB in the beginning and 50.7MB in the end (delta: -5.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-21 23:03:31,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 73.4MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 867.88ms. Allocated memory is still 73.4MB. Free memory was 45.5MB in the beginning and 50.7MB in the end (delta: -5.3MB). Peak memory consumption was 17.3MB. 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.