./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4 --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 0f524dfca5f0202d0fd177523d80616178d3161e02e0b6323b3373f89ab74a57 --- 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-2329fc7 [2022-12-14 23:50:41,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:50:41,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:50:41,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:50:41,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:50:41,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:50:41,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:50:41,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:50:41,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:50:41,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:50:41,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:50:41,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:50:41,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:50:41,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:50:41,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:50:41,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:50:41,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:50:41,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:50:41,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:50:41,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:50:41,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:50:41,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:50:41,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:50:41,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:50:41,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:50:41,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:50:41,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:50:41,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:50:41,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:50:41,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:50:41,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:50:41,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:50:41,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:50:41,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:50:41,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:50:41,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:50:41,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:50:41,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:50:41,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:50:41,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:50:41,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:50:41,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 23:50:41,654 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:50:41,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:50:41,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:50:41,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:50:41,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:50:41,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:50:41,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:50:41,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 23:50:41,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:50:41,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:50:41,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:50:41,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:50:41,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:50:41,658 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 23:50:41,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:50:41,658 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:50:41,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:50:41,659 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:50:41,659 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:50:41,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:50:41,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:50:41,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:50:41,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:50:41,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:50:41,660 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:50:41,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:50:41,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:50:41,660 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_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f524dfca5f0202d0fd177523d80616178d3161e02e0b6323b3373f89ab74a57 [2022-12-14 23:50:41,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:50:41,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:50:41,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:50:41,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:50:41,879 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:50:41,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_good.i [2022-12-14 23:50:44,449 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:50:44,729 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:50:44,729 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_good.i [2022-12-14 23:50:44,747 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/data/0229e0b1f/2641125ed0fd48aea4a0bedfdf8df4ce/FLAG2b8025f0f [2022-12-14 23:50:45,020 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/data/0229e0b1f/2641125ed0fd48aea4a0bedfdf8df4ce [2022-12-14 23:50:45,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:50:45,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:50:45,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:50:45,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:50:45,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:50:45,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e92998f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45, skipping insertion in model container [2022-12-14 23:50:45,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:50:45,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:50:45,346 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 23:50:45,678 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 23:50:45,682 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 23:50:45,683 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 23:50:45,685 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 23:50:45,685 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 23:50:45,704 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 23:50:45,707 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 23:50:45,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:50:45,724 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:50:45,737 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 23:50:45,766 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 23:50:45,767 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 23:50:45,768 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 23:50:45,770 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 23:50:45,770 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 23:50:45,774 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 23:50:45,775 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 23:50:45,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:50:45,874 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:50:45,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45 WrapperNode [2022-12-14 23:50:45,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:50:45,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:50:45,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:50:45,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:50:45,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,914 INFO L138 Inliner]: procedures = 510, calls = 75, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 77 [2022-12-14 23:50:45,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:50:45,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:50:45,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:50:45,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:50:45,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,931 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:50:45,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:50:45,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:50:45,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:50:45,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:50:45" (1/1) ... [2022-12-14 23:50:45,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:50:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:50:45,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:50:45,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:50:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 23:50:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 23:50:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 23:50:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 23:50:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 23:50:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 23:50:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 23:50:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 23:50:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:50:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:50:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 23:50:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 23:50:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 23:50:46,118 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:50:46,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:50:46,243 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:50:46,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:50:46,265 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 23:50:46,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:46 BoogieIcfgContainer [2022-12-14 23:50:46,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 23:50:46,268 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 23:50:46,268 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 23:50:46,275 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 23:50:46,275 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:46" (1/1) ... [2022-12-14 23:50:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 23:50:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:46,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-12-14 23:50:46,320 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 23:50:46,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 23:50:46,323 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:46,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:46,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:50:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-14 23:50:46,568 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-14 23:50:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 23:50:46,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:46,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:46,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:50:46,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-12-14 23:50:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 23:50:46,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 23:50:46,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:46,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:50:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-12-14 23:50:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-14 23:50:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 23:50:46,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:46,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:50:46,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2022-12-14 23:50:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-12-14 23:50:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 23:50:46,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:50:46,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:50:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:50:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 23:50:47,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:50:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 28 transitions. [2022-12-14 23:50:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 23:50:47,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 23:50:47,117 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 23:50:47,125 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 23:50:47,151 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 23:50:47,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 11:50:47 ImpRootNode [2022-12-14 23:50:47,155 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 23:50:47,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 23:50:47,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 23:50:47,156 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 23:50:47,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:50:46" (3/4) ... [2022-12-14 23:50:47,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 23:50:47,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 23:50:47,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 23:50:47,168 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2022-12-14 23:50:47,168 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 23:50:47,169 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 23:50:47,169 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 23:50:47,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 23:50:47,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 23:50:47,211 INFO L158 Benchmark]: Toolchain (without parser) took 2188.27ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 103.8MB in the beginning and 76.6MB in the end (delta: 27.2MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,212 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:50:47,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 850.27ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 103.2MB in the beginning and 125.1MB in the end (delta: -21.9MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.02ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 122.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,213 INFO L158 Benchmark]: Boogie Preprocessor took 18.86ms. Allocated memory is still 172.0MB. Free memory was 122.0MB in the beginning and 120.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,213 INFO L158 Benchmark]: RCFGBuilder took 332.57ms. Allocated memory is still 172.0MB. Free memory was 120.9MB in the beginning and 105.1MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,214 INFO L158 Benchmark]: CodeCheck took 887.46ms. Allocated memory is still 172.0MB. Free memory was 104.1MB in the beginning and 80.7MB in the end (delta: 23.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,214 INFO L158 Benchmark]: Witness Printer took 55.03ms. Allocated memory is still 172.0MB. Free memory was 80.7MB in the beginning and 76.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 23:50:47,216 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 3 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 76 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 420 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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 - PositiveResult [Line: 1620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1584]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 850.27ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 103.2MB in the beginning and 125.1MB in the end (delta: -21.9MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.02ms. Allocated memory is still 172.0MB. Free memory was 125.1MB in the beginning and 122.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.86ms. Allocated memory is still 172.0MB. Free memory was 122.0MB in the beginning and 120.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.57ms. Allocated memory is still 172.0MB. Free memory was 120.9MB in the beginning and 105.1MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 887.46ms. Allocated memory is still 172.0MB. Free memory was 104.1MB in the beginning and 80.7MB in the end (delta: 23.4MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Witness Printer took 55.03ms. Allocated memory is still 172.0MB. Free memory was 80.7MB in the beginning and 76.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 23:50:47,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61d0b82f-a23c-4eff-b4a7-01507de46634/bin/ukojak-rkRKPMF4O4/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 Result: TRUE