./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9350c2d76492343c3a4ad7dac04b4ea19fb4e48c8259cf8dfeea34dcfa5247e4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 17:58:06,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:58:06,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:58:06,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:58:06,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:58:06,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:58:06,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:58:06,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:58:06,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:58:06,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:58:06,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:58:06,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:58:06,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:58:06,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:58:06,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:58:06,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:58:06,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:58:06,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:58:06,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:58:06,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:58:06,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:58:06,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:58:06,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:58:06,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:58:06,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:58:06,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:58:06,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:58:06,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:58:06,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:58:06,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:58:06,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:58:06,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:58:06,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:58:06,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:58:06,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:58:06,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:58:06,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:58:06,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:58:06,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:58:06,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:58:06,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:58:06,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:58:06,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:58:06,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:58:06,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:58:06,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:58:06,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:58:06,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:58:06,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:58:06,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:58:06,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:58:06,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:58:06,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:58:06,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:58:06,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:58:06,762 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:58:06,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:58:06,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:58:06,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:58:06,763 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:58:06,763 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:58:06,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:58:06,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:58:06,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:58:06,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:58:06,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:58:06,765 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:58:06,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:58:06,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:58:06,766 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_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9350c2d76492343c3a4ad7dac04b4ea19fb4e48c8259cf8dfeea34dcfa5247e4 [2022-11-20 17:58:07,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:58:07,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:58:07,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:58:07,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:58:07,088 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:58:07,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_bad.i [2022-11-20 17:58:10,209 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:58:10,540 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:58:10,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_bad.i [2022-11-20 17:58:10,559 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/data/4137bc6b3/666d92320cb746118eb7cfa2cd5b1ea7/FLAG875c3b1af [2022-11-20 17:58:10,574 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/data/4137bc6b3/666d92320cb746118eb7cfa2cd5b1ea7 [2022-11-20 17:58:10,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:58:10,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:58:10,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:58:10,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:58:10,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:58:10,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:58:10" (1/1) ... [2022-11-20 17:58:10,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58efbf21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:10, skipping insertion in model container [2022-11-20 17:58:10,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:58:10" (1/1) ... [2022-11-20 17:58:10,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:58:10,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:58:11,074 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:58:11,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:58:11,640 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:58:11,660 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:58:11,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:58:11,926 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:58:11,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11 WrapperNode [2022-11-20 17:58:11,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:58:11,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:58:11,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:58:11,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:58:11,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:11,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,011 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2022-11-20 17:58:12,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:58:12,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:58:12,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:58:12,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:58:12,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,061 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:58:12,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:58:12,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:58:12,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:58:12,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:58:11" (1/1) ... [2022-11-20 17:58:12,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:58:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:58:12,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:58:12,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:58:12,156 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 17:58:12,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 17:58:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:58:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:58:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:58:12,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:58:12,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:58:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:58:12,158 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 17:58:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:58:12,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:58:12,424 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:58:12,426 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:58:12,579 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:58:12,648 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:58:12,652 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 17:58:12,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:58:12 BoogieIcfgContainer [2022-11-20 17:58:12,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:58:12,656 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:58:12,658 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:58:12,668 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:58:12,669 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:58:12" (1/1) ... [2022-11-20 17:58:12,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:58:12,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:58:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2022-11-20 17:58:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-20 17:58:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:58:12,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:58:12,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:58:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:58:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:58:13,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:58:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-20 17:58:13,313 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-20 17:58:13,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 17:58:13,313 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:58:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:58:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:13,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:58:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:13,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:58:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:13,440 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-20 17:58:13,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:58:13 ImpRootNode [2022-11-20 17:58:13,490 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:58:13,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:58:13,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:58:13,494 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:58:13,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:58:12" (3/4) ... [2022-11-20 17:58:13,496 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:58:13,563 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:58:13,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:58:13,568 INFO L158 Benchmark]: Toolchain (without parser) took 2989.18ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 83.2MB in the beginning and 112.4MB in the end (delta: -29.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:58:13,568 INFO L158 Benchmark]: CDTParser took 1.42ms. Allocated memory is still 96.5MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:58:13,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1348.62ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 83.2MB in the beginning and 112.1MB in the end (delta: -28.9MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2022-11-20 17:58:13,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.85ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 109.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:58:13,570 INFO L158 Benchmark]: Boogie Preprocessor took 52.18ms. Allocated memory is still 169.9MB. Free memory was 109.1MB in the beginning and 107.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:58:13,570 INFO L158 Benchmark]: RCFGBuilder took 589.96ms. Allocated memory is still 169.9MB. Free memory was 107.0MB in the beginning and 92.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:58:13,571 INFO L158 Benchmark]: CodeCheck took 834.52ms. Allocated memory is still 169.9MB. Free memory was 92.4MB in the beginning and 115.5MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:58:13,572 INFO L158 Benchmark]: Witness Printer took 75.20ms. Allocated memory is still 169.9MB. Free memory was 115.5MB in the beginning and 112.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:58:13,576 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, 14 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, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 4 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a 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); [L1568] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=30, argc=30, argv={29:12}, argv={29:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_fscanf_predec_02_bad() [L1550] int data; [L1551] data = 0 [L1559] EXPR \read(data) VAL [\read(data)=-2147483648, data={10452:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1559] --data VAL [\read(data)=-2147483648, data={10452:0}, 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 1.42ms. Allocated memory is still 96.5MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1348.62ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 83.2MB in the beginning and 112.1MB in the end (delta: -28.9MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.85ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 109.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.18ms. Allocated memory is still 169.9MB. Free memory was 109.1MB in the beginning and 107.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 589.96ms. Allocated memory is still 169.9MB. Free memory was 107.0MB in the beginning and 92.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 834.52ms. Allocated memory is still 169.9MB. Free memory was 92.4MB in the beginning and 115.5MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.20ms. Allocated memory is still 169.9MB. Free memory was 115.5MB in the beginning and 112.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 17:58:13,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ee79d4f-419a-425c-b4d0-672d2b14e54f/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)