./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a --- 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-4e7fbc6 [2022-11-23 15:46:36,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:46:36,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:46:36,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:46:36,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:46:36,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:46:36,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:46:36,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:46:36,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:46:36,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:46:36,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:46:36,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:46:36,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:46:36,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:46:36,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:46:36,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:46:36,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:46:36,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:46:36,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:46:36,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:46:36,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:46:36,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:46:36,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:46:36,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:46:36,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:46:36,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:46:36,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:46:36,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:46:36,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:46:36,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:46:36,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:46:36,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:46:36,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:46:36,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:46:36,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:46:36,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:46:36,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:46:36,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:46:36,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:46:36,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:46:36,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:46:36,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:46:36,882 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:46:36,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:46:36,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:46:36,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:46:36,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:46:36,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:46:36,885 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:46:36,885 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:46:36,885 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:46:36,886 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:46:36,887 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:46:36,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:46:36,888 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:46:36,888 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:46:36,888 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:46:36,889 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:46:36,889 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:46:36,889 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:46:36,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:46:36,890 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:46:36,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:46:36,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:46:36,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:46:36,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:46:36,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:46:36,892 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:46:36,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:46:36,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:46:36,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:46:36,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:46:36,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:46:36,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:46:36,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:46:36,895 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:46:36,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:46:36,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:46:36,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:46:36,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:46:36,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:46:36,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:46:36,897 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_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a [2022-11-23 15:46:37,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:46:37,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:46:37,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:46:37,254 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:46:37,255 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:46:37,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2022-11-23 15:46:40,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:46:40,815 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:46:40,816 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2022-11-23 15:46:40,846 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data/bdd372af3/1f48becb84ef4db595c1025f486a202c/FLAGbb3b64d45 [2022-11-23 15:46:40,867 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data/bdd372af3/1f48becb84ef4db595c1025f486a202c [2022-11-23 15:46:40,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:46:40,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:46:40,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:46:40,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:46:40,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:46:40,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:46:40" (1/1) ... [2022-11-23 15:46:40,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@299c6f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:40, skipping insertion in model container [2022-11-23 15:46:40,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:46:40" (1/1) ... [2022-11-23 15:46:40,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:46:40,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:46:41,396 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:46:41,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:46:42,015 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:46:42,067 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:46:42,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:46:42,340 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:46:42,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42 WrapperNode [2022-11-23 15:46:42,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:46:42,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:46:42,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:46:42,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:46:42,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,424 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2022-11-23 15:46:42,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:46:42,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:46:42,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:46:42,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:46:42,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,452 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:46:42,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:46:42,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:46:42,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:46:42,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (1/1) ... [2022-11-23 15:46:42,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:46:42,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:46:42,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:46:42,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:46:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 15:46:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:46:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:46:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:46:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:46:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:46:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:46:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:46:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:46:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:46:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:46:42,763 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:46:42,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:46:42,950 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:46:43,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:46:43,009 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:46:43,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:43 BoogieIcfgContainer [2022-11-23 15:46:43,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:46:43,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:46:43,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:46:43,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:46:43,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:46:40" (1/3) ... [2022-11-23 15:46:43,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8c9b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:43, skipping insertion in model container [2022-11-23 15:46:43,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:42" (2/3) ... [2022-11-23 15:46:43,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8c9b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:43, skipping insertion in model container [2022-11-23 15:46:43,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:43" (3/3) ... [2022-11-23 15:46:43,042 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2022-11-23 15:46:43,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:46:43,066 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:46:43,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:46:43,167 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e28e939, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:46:43,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:46:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:46:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:46:43,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:43,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:46:43,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:46:43,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:43,202 INFO L85 PathProgramCache]: Analyzing trace with hash 63356454, now seen corresponding path program 1 times [2022-11-23 15:46:43,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:46:43,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68303466] [2022-11-23 15:46:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:43,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:46:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:46:43,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:46:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:46:43,569 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:46:43,571 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:46:43,573 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:46:43,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:46:43,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:46:43,580 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:46:43,586 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:46:43,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:46:43 BoogieIcfgContainer [2022-11-23 15:46:43,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:46:43,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:46:43,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:46:43,621 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:46:43,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:43" (3/4) ... [2022-11-23 15:46:43,626 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:46:43,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:46:43,627 INFO L158 Benchmark]: Toolchain (without parser) took 2755.12ms. Allocated memory was 172.0MB in the beginning and 216.0MB in the end (delta: 44.0MB). Free memory was 135.8MB in the beginning and 155.7MB in the end (delta: -19.9MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-11-23 15:46:43,628 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:46:43,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1466.30ms. Allocated memory is still 172.0MB. Free memory was 135.6MB in the beginning and 73.6MB in the end (delta: 62.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-23 15:46:43,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.43ms. Allocated memory is still 172.0MB. Free memory was 73.0MB in the beginning and 70.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:46:43,630 INFO L158 Benchmark]: Boogie Preprocessor took 30.83ms. Allocated memory is still 172.0MB. Free memory was 70.6MB in the beginning and 68.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:46:43,631 INFO L158 Benchmark]: RCFGBuilder took 554.76ms. Allocated memory was 172.0MB in the beginning and 216.0MB in the end (delta: 44.0MB). Free memory was 68.8MB in the beginning and 173.5MB in the end (delta: -104.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-23 15:46:43,632 INFO L158 Benchmark]: TraceAbstraction took 605.63ms. Allocated memory is still 216.0MB. Free memory was 173.5MB in the beginning and 155.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:46:43,632 INFO L158 Benchmark]: Witness Printer took 5.61ms. Allocated memory is still 216.0MB. Free memory is still 155.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:46:43,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 172.0MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1466.30ms. Allocated memory is still 172.0MB. Free memory was 135.6MB in the beginning and 73.6MB in the end (delta: 62.0MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.43ms. Allocated memory is still 172.0MB. Free memory was 73.0MB in the beginning and 70.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.83ms. Allocated memory is still 172.0MB. Free memory was 70.6MB in the beginning and 68.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.76ms. Allocated memory was 172.0MB in the beginning and 216.0MB in the end (delta: 44.0MB). Free memory was 68.8MB in the beginning and 173.5MB in the end (delta: -104.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 605.63ms. Allocated memory is still 216.0MB. Free memory was 173.5MB in the beginning and 155.7MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.61ms. Allocated memory is still 216.0MB. Free memory is still 155.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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 [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [#in~argv={1073741830:1073741828}, argc=1073741827, argv={1073741830:1073741828}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741827] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1550] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=-1073741825] [L1552] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=-1073741825] - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:46:43,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a --- 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-4e7fbc6 [2022-11-23 15:46:46,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:46:46,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:46:46,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:46:46,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:46:46,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:46:46,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:46:46,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:46:46,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:46:46,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:46:46,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:46:46,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:46:46,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:46:46,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:46:46,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:46:46,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:46:46,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:46:46,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:46:46,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:46:46,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:46:46,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:46:46,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:46:46,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:46:46,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:46:46,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:46:46,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:46:46,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:46:46,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:46:46,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:46:46,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:46:46,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:46:46,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:46:46,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:46:46,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:46:46,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:46:46,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:46:46,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:46:46,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:46:46,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:46:46,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:46:46,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:46:46,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:46:46,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:46:46,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:46:46,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:46:46,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:46:46,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:46:46,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:46:46,253 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:46:46,253 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:46:46,254 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:46:46,254 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:46:46,255 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:46:46,255 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:46:46,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:46:46,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:46:46,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:46:46,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:46:46,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:46:46,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:46:46,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:46:46,258 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:46:46,258 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:46:46,259 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:46:46,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:46:46,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:46:46,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:46:46,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:46:46,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:46:46,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:46:46,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:46:46,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:46:46,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:46:46,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:46:46,262 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:46:46,262 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:46:46,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:46:46,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:46:46,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:46:46,263 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_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a [2022-11-23 15:46:46,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:46:46,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:46:46,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:46:46,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:46:46,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:46:46,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2022-11-23 15:46:50,237 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:46:50,669 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:46:50,676 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2022-11-23 15:46:50,709 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data/4f7deb53f/5cfc7f2b8e434e5bb8ea65d2ce4995b5/FLAGe8bd835ed [2022-11-23 15:46:50,732 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/data/4f7deb53f/5cfc7f2b8e434e5bb8ea65d2ce4995b5 [2022-11-23 15:46:50,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:46:50,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:46:50,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:46:50,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:46:50,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:46:50,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:46:50" (1/1) ... [2022-11-23 15:46:50,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567953a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:50, skipping insertion in model container [2022-11-23 15:46:50,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:46:50" (1/1) ... [2022-11-23 15:46:50,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:46:50,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:46:51,300 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:46:52,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:46:52,127 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:46:52,149 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:46:52,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:46:52,428 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:46:52,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52 WrapperNode [2022-11-23 15:46:52,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:46:52,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:46:52,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:46:52,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:46:52,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,526 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-11-23 15:46:52,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:46:52,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:46:52,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:46:52,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:46:52,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,589 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:46:52,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:46:52,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:46:52,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:46:52,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (1/1) ... [2022-11-23 15:46:52,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:46:52,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:46:52,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:46:52,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:46:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 15:46:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:46:52,714 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:46:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:46:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:46:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:46:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:46:52,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:46:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:46:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:46:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 15:46:52,906 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:46:52,908 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:46:53,099 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:46:53,105 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:46:53,106 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:46:53,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:53 BoogieIcfgContainer [2022-11-23 15:46:53,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:46:53,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:46:53,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:46:53,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:46:53,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:46:50" (1/3) ... [2022-11-23 15:46:53,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55781b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:53, skipping insertion in model container [2022-11-23 15:46:53,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:52" (2/3) ... [2022-11-23 15:46:53,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55781b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:53, skipping insertion in model container [2022-11-23 15:46:53,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:53" (3/3) ... [2022-11-23 15:46:53,119 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2022-11-23 15:46:53,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:46:53,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:46:53,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:46:53,206 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b8af06b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:46:53,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:46:53,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:46:53,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:46:53,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:53,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:46:53,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:46:53,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:53,229 INFO L85 PathProgramCache]: Analyzing trace with hash -83245182, now seen corresponding path program 1 times [2022-11-23 15:46:53,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:46:53,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085533882] [2022-11-23 15:46:53,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:46:53,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:46:53,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:46:53,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:46:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:46:53,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:46:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:46:53,619 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:46:53,622 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:46:53,623 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:46:53,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:46:53,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:46:53,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:46:53,848 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:46:53,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:46:53,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:46:53 BoogieIcfgContainer [2022-11-23 15:46:53,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:46:53,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:46:53,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:46:53,896 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:46:53,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:53" (3/4) ... [2022-11-23 15:46:53,900 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:46:53,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:46:53,915 INFO L158 Benchmark]: Toolchain (without parser) took 3163.59ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 43.3MB in the beginning and 63.6MB in the end (delta: -20.4MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-23 15:46:53,925 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:46:53,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1690.50ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 43.1MB in the beginning and 73.0MB in the end (delta: -29.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2022-11-23 15:46:53,927 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.39ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 69.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:46:53,927 INFO L158 Benchmark]: Boogie Preprocessor took 79.88ms. Allocated memory is still 100.7MB. Free memory was 69.8MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:46:53,928 INFO L158 Benchmark]: RCFGBuilder took 500.07ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 53.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:46:53,929 INFO L158 Benchmark]: TraceAbstraction took 783.65ms. Allocated memory is still 100.7MB. Free memory was 53.1MB in the beginning and 64.2MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:46:53,929 INFO L158 Benchmark]: Witness Printer took 5.11ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 63.6MB in the end (delta: 588.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:46:53,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1690.50ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 43.1MB in the beginning and 73.0MB in the end (delta: -29.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.39ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 69.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.88ms. Allocated memory is still 100.7MB. Free memory was 69.8MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.07ms. Allocated memory is still 100.7MB. Free memory was 67.8MB in the beginning and 53.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 783.65ms. Allocated memory is still 100.7MB. Free memory was 53.1MB in the beginning and 64.2MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.11ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 63.6MB in the end (delta: 588.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1550] COND TRUE data < 0 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, unknown-#in~data-unknown=-2147483648] [L1552] 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, unknown-#in~data-unknown=-2147483648] - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:46:53,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_242f858c-7d65-488d-ae5a-3e9eca121d94/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample