./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh --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 d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- 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 07:33:26,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:33:26,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:33:26,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:33:26,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:33:26,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:33:26,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:33:26,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:33:26,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:33:26,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:33:26,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:33:26,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:33:26,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:33:26,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:33:26,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:33:26,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:33:26,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:33:26,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:33:26,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:33:26,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:33:26,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:33:26,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:33:26,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:33:26,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:33:26,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:33:26,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:33:26,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:33:26,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:33:26,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:33:26,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:33:26,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:33:26,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:33:26,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:33:26,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:33:26,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:33:26,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:33:26,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:33:26,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:33:26,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:33:26,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:33:26,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:33:26,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 07:33:26,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:33:26,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:33:26,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:33:26,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:33:26,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:33:26,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:33:26,201 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:33:26,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:33:26,202 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:33:26,203 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:33:26,203 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:33:26,203 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:33:26,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:33:26,204 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:33:26,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:33:26,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:33:26,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:33:26,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:33:26,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:33:26,205 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:33:26,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:33:26,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:33:26,206 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:33:26,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:33:26,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:33:26,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:33:26,206 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_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2022-12-14 07:33:26,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:33:26,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:33:26,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:33:26,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:33:26,413 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:33:26,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2022-12-14 07:33:28,930 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:33:29,128 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:33:29,129 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2022-12-14 07:33:29,141 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data/ccab5ad54/cfe9978ca7e1403598d1b10746d2648f/FLAGc9cb89154 [2022-12-14 07:33:29,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data/ccab5ad54/cfe9978ca7e1403598d1b10746d2648f [2022-12-14 07:33:29,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:33:29,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:33:29,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:33:29,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:33:29,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:33:29,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e18611e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29, skipping insertion in model container [2022-12-14 07:33:29,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:33:29,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:33:29,418 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:33:29,692 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:33:29,696 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:29,698 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:29,700 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:29,700 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:29,719 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:33:29,721 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:33:29,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:33:29,732 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:33:29,746 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:33:29,778 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:33:29,779 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:29,780 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:29,782 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:29,782 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:29,785 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:33:29,786 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:33:29,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:33:29,890 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:33:29,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29 WrapperNode [2022-12-14 07:33:29,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:33:29,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:33:29,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:33:29,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:33:29,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,941 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-12-14 07:33:29,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:33:29,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:33:29,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:33:29,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:33:29,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:33:29,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:33:29,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:33:29,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:33:29,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (1/1) ... [2022-12-14 07:33:29,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:33:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:33:29,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:33:29,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 07:33:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:33:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:33:30,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:33:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 07:33:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:33:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:33:30,134 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:33:30,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:33:30,256 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:33:30,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:33:30,284 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:33:30,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:33:30 BoogieIcfgContainer [2022-12-14 07:33:30,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:33:30,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:33:30,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:33:30,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:33:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:33:29" (1/3) ... [2022-12-14 07:33:30,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fbbbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:33:30, skipping insertion in model container [2022-12-14 07:33:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:29" (2/3) ... [2022-12-14 07:33:30,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fbbbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:33:30, skipping insertion in model container [2022-12-14 07:33:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:33:30" (3/3) ... [2022-12-14 07:33:30,295 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2022-12-14 07:33:30,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:33:30,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 07:33:30,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:33:30,353 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;@30fddb07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:33:30,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 07:33:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2022-12-14 07:33:30,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:33:30,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:30,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:30,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:33:30,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2022-12-14 07:33:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:33:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274993937] [2022-12-14 07:33:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:30,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:33:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:33:30,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:33:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:33:30,516 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 07:33:30,518 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:33:30,518 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 07:33:30,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 07:33:30,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:33:30,523 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 07:33:30,527 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:33:30,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:33:30 BoogieIcfgContainer [2022-12-14 07:33:30,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:33:30,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:33:30,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:33:30,543 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:33:30,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:33:30" (3/4) ... [2022-12-14 07:33:30,546 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:33:30,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:33:30,547 INFO L158 Benchmark]: Toolchain (without parser) took 1391.84ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 100.1MB in the beginning and 87.5MB in the end (delta: 12.6MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2022-12-14 07:33:30,547 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:33:30,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.04ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 100.1MB in the beginning and 126.3MB in the end (delta: -26.3MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2022-12-14 07:33:30,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.29ms. Allocated memory is still 176.2MB. Free memory was 126.3MB in the beginning and 123.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:33:30,548 INFO L158 Benchmark]: Boogie Preprocessor took 19.93ms. Allocated memory is still 176.2MB. Free memory was 123.3MB in the beginning and 122.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:33:30,549 INFO L158 Benchmark]: RCFGBuilder took 324.12ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 106.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:33:30,549 INFO L158 Benchmark]: TraceAbstraction took 253.71ms. Allocated memory is still 176.2MB. Free memory was 105.4MB in the beginning and 87.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 07:33:30,549 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 176.2MB. Free memory was 87.6MB in the beginning and 87.5MB in the end (delta: 143.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:33:30,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.04ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 100.1MB in the beginning and 126.3MB in the end (delta: -26.3MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.29ms. Allocated memory is still 176.2MB. Free memory was 126.3MB in the beginning and 123.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.93ms. Allocated memory is still 176.2MB. Free memory was 123.3MB in the beginning and 122.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.12ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 106.5MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 253.71ms. Allocated memory is still 176.2MB. Free memory was 105.4MB in the beginning and 87.6MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 176.2MB. Free memory was 87.6MB in the beginning and 87.5MB in the end (delta: 143.0kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741831:1073741830}, argv={1073741831:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [data=-2147483648, data--=-2147483648, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1579]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=15occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 [2022-12-14 07:33:30,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh --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 d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- 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 07:33:32,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:33:32,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:33:32,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:33:32,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:33:32,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:33:32,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:33:32,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:33:32,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:33:32,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:33:32,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:33:32,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:33:32,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:33:32,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:33:32,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:33:32,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:33:32,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:33:32,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:33:32,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:33:32,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:33:32,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:33:32,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:33:32,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:33:32,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:33:32,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:33:32,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:33:32,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:33:32,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:33:32,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:33:32,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:33:32,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:33:32,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:33:32,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:33:32,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:33:32,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:33:32,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:33:32,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:33:32,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:33:32,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:33:32,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:33:32,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:33:32,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 07:33:32,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:33:32,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:33:32,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:33:32,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:33:32,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:33:32,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:33:32,153 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:33:32,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:33:32,154 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:33:32,154 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:33:32,154 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:33:32,154 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:33:32,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:33:32,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:33:32,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:33:32,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:33:32,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:33:32,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:33:32,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:33:32,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:33:32,157 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:33:32,157 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:33:32,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:33:32,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:33:32,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:33:32,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:33:32,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:33:32,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:33:32,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:33:32,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:33:32,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:33:32,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:33:32,159 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:33:32,159 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:33:32,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:33:32,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:33:32,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:33:32,160 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_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2022-12-14 07:33:32,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:33:32,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:33:32,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:33:32,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:33:32,389 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:33:32,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2022-12-14 07:33:34,997 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:33:35,207 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:33:35,208 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2022-12-14 07:33:35,219 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data/eb5d64826/8bf6a662e67941419b4fe5f76328831e/FLAGb0cdb1001 [2022-12-14 07:33:35,230 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/data/eb5d64826/8bf6a662e67941419b4fe5f76328831e [2022-12-14 07:33:35,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:33:35,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:33:35,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:33:35,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:33:35,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:33:35,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:33:35" (1/1) ... [2022-12-14 07:33:35,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a8680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:35, skipping insertion in model container [2022-12-14 07:33:35,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:33:35" (1/1) ... [2022-12-14 07:33:35,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:33:35,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:33:35,532 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:33:35,842 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:33:35,846 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:35,847 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:35,848 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:35,849 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:35,863 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:33:35,865 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:33:35,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:33:35,879 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 07:33:35,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:33:35,893 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:33:35,924 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:33:35,925 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:35,925 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:35,927 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:35,927 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:35,930 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:33:35,931 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:33:35,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:33:35,936 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:33:35,955 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:33:36,000 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:33:36,002 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:36,003 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:33:36,005 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:36,005 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:33:36,009 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:33:36,010 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:33:36,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:33:36,117 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:33:36,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36 WrapperNode [2022-12-14 07:33:36,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:33:36,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:33:36,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:33:36,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:33:36,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,163 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-12-14 07:33:36,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:33:36,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:33:36,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:33:36,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:33:36,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,190 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:33:36,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:33:36,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:33:36,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:33:36,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (1/1) ... [2022-12-14 07:33:36,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:33:36,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:33:36,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:33:36,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:33:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 07:33:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:33:36,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 07:33:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 07:33:36,378 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:33:36,379 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:33:36,589 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:33:36,593 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:33:36,593 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:33:36,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:33:36 BoogieIcfgContainer [2022-12-14 07:33:36,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:33:36,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:33:36,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:33:36,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:33:36,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:33:35" (1/3) ... [2022-12-14 07:33:36,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bbf7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:33:36, skipping insertion in model container [2022-12-14 07:33:36,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:33:36" (2/3) ... [2022-12-14 07:33:36,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bbf7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:33:36, skipping insertion in model container [2022-12-14 07:33:36,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:33:36" (3/3) ... [2022-12-14 07:33:36,601 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2022-12-14 07:33:36,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:33:36,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 07:33:36,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:33:36,652 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;@c9b1c14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:33:36,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 07:33:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-12-14 07:33:36,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 07:33:36,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:33:36,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:33:36,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:33:36,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:33:36,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 07:33:36,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:33:36,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077453797] [2022-12-14 07:33:36,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:33:36,683 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 [2022-12-14 07:33:36,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:33:36,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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) [2022-12-14 07:33:36,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:33:36,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:33:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:33:37,086 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 07:33:37,087 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:33:37,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 07:33:37,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 07:33:37,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:37,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/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 [2022-12-14 07:33:37,298 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 07:33:37,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:33:37,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:33:37 BoogieIcfgContainer [2022-12-14 07:33:37,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:33:37,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:33:37,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:33:37,366 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:33:37,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:33:36" (3/4) ... [2022-12-14 07:33:37,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:33:37,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:33:37,376 INFO L158 Benchmark]: Toolchain (without parser) took 2142.38ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 37.9MB in the end (delta: 17.2MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-12-14 07:33:37,377 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:33:37,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.11ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 36.5MB in the end (delta: 18.4MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-12-14 07:33:37,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.73ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 33.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 07:33:37,380 INFO L158 Benchmark]: Boogie Preprocessor took 29.53ms. Allocated memory is still 79.7MB. Free memory was 33.5MB in the beginning and 53.7MB in the end (delta: -20.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-12-14 07:33:37,381 INFO L158 Benchmark]: RCFGBuilder took 400.56ms. Allocated memory is still 79.7MB. Free memory was 53.3MB in the beginning and 37.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:33:37,382 INFO L158 Benchmark]: TraceAbstraction took 768.15ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 38.3MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:33:37,383 INFO L158 Benchmark]: Witness Printer took 9.21ms. Allocated memory is still 79.7MB. Free memory was 38.3MB in the beginning and 37.9MB in the end (delta: 367.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:33:37,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.11ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 36.5MB in the end (delta: 18.4MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.73ms. Allocated memory is still 79.7MB. Free memory was 36.5MB in the beginning and 33.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.53ms. Allocated memory is still 79.7MB. Free memory was 33.5MB in the beginning and 53.7MB in the end (delta: -20.2MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * RCFGBuilder took 400.56ms. Allocated memory is still 79.7MB. Free memory was 53.3MB in the beginning and 37.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 768.15ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 38.3MB in the end (delta: -1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.21ms. Allocated memory is still 79.7MB. Free memory was 38.3MB in the beginning and 37.9MB in the end (delta: 367.5kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [data=-2147483648, data--=-2147483648, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1579]: 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, 23 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=23occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 [2022-12-14 07:33:37,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099c3187-8bc5-4348-84f5-a5aeb2a22678/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample