./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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 3682323ed3f3e959210ae31f39b8472c2658a034394273605eede676a52e113f --- 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 15:05:18,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:05:18,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:05:18,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:05:18,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:05:18,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:05:18,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:05:18,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:05:18,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:05:18,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:05:18,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:05:18,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:05:18,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:05:18,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:05:18,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:05:18,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:05:18,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:05:18,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:05:18,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:05:18,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:05:18,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:05:18,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:05:18,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:05:18,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:05:18,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:05:18,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:05:18,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:05:18,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:05:18,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:05:18,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:05:18,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:05:18,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:05:18,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:05:18,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:05:18,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:05:18,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:05:18,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:05:18,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:05:18,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:05:18,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:05:18,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:05:18,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:05:18,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:05:18,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:05:18,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:05:18,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:05:18,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:05:18,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:05:18,118 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:05:18,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:05:18,129 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:05:18,129 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:05:18,129 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:05:18,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:05:18,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:05:18,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:05:18,130 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:05:18,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:05:18,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:05:18,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:05:18,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:05:18,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:05:18,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:05:18,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:05:18,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:05:18,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:05:18,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:05:18,132 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:05:18,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:05:18,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:05:18,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:05:18,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:05:18,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:05:18,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:05:18,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:05:18,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:05:18,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:05:18,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:05:18,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:05:18,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:05:18,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:05:18,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:05:18,135 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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3682323ed3f3e959210ae31f39b8472c2658a034394273605eede676a52e113f [2022-12-14 15:05:18,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:05:18,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:05:18,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:05:18,339 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:05:18,339 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:05:18,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i [2022-12-14 15:05:20,938 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:05:21,135 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:05:21,135 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i [2022-12-14 15:05:21,148 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data/02184a4f8/4b1faf6b905247abac69ea978a151f12/FLAGdbac0fb90 [2022-12-14 15:05:21,158 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data/02184a4f8/4b1faf6b905247abac69ea978a151f12 [2022-12-14 15:05:21,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:05:21,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:05:21,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:05:21,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:05:21,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:05:21,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:21" (1/1) ... [2022-12-14 15:05:21,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e924bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:21, skipping insertion in model container [2022-12-14 15:05:21,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:21" (1/1) ... [2022-12-14 15:05:21,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:05:21,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:05:21,486 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:05:21,777 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:05:21,781 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:21,784 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:21,786 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:21,787 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:21,802 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:05:21,804 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:05:21,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:05:21,816 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:05:21,836 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:05:21,882 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:05:21,884 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:21,885 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:21,888 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:21,889 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:21,894 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:05:21,895 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:05:21,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:05:22,034 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:05:22,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22 WrapperNode [2022-12-14 15:05:22,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:05:22,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:05:22,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:05:22,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:05:22,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,082 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 15:05:22,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:05:22,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:05:22,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:05:22,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:05:22,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:05:22,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:05:22,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:05:22,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:05:22,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (1/1) ... [2022-12-14 15:05:22,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:05:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:22,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:05:22,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:05:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:05:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:05:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:05:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:05:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:05:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:05:22,292 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:05:22,294 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:05:22,422 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:05:22,450 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:05:22,450 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:05:22,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:22 BoogieIcfgContainer [2022-12-14 15:05:22,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:05:22,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:05:22,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:05:22,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:05:22,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:05:21" (1/3) ... [2022-12-14 15:05:22,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1e7311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:22, skipping insertion in model container [2022-12-14 15:05:22,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:22" (2/3) ... [2022-12-14 15:05:22,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1e7311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:22, skipping insertion in model container [2022-12-14 15:05:22,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:22" (3/3) ... [2022-12-14 15:05:22,462 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i [2022-12-14 15:05:22,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:05:22,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:05:22,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:05:22,520 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;@4459bb25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:05:22,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:05:22,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 15:05:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:05:22,529 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:22,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:22,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:05:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1767842661, now seen corresponding path program 1 times [2022-12-14 15:05:22,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:22,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064421997] [2022-12-14 15:05:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:22,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:05:22,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:05:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:05:22,724 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:05:22,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:05:22,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:05:22,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:05:22,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:05:22,732 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:05:22,735 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:05:22,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:05:22 BoogieIcfgContainer [2022-12-14 15:05:22,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:05:22,752 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:05:22,752 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:05:22,753 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:05:22,753 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:22" (3/4) ... [2022-12-14 15:05:22,755 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:05:22,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:05:22,756 INFO L158 Benchmark]: Toolchain (without parser) took 1595.02ms. Allocated memory was 134.2MB in the beginning and 216.0MB in the end (delta: 81.8MB). Free memory was 89.5MB in the beginning and 135.7MB in the end (delta: -46.2MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-12-14 15:05:22,757 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:05:22,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.21ms. Allocated memory was 134.2MB in the beginning and 216.0MB in the end (delta: 81.8MB). Free memory was 89.5MB in the beginning and 175.5MB in the end (delta: -86.0MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-12-14 15:05:22,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.99ms. Allocated memory is still 216.0MB. Free memory was 175.5MB in the beginning and 172.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:05:22,758 INFO L158 Benchmark]: Boogie Preprocessor took 23.54ms. Allocated memory is still 216.0MB. Free memory was 172.4MB in the beginning and 171.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:05:22,758 INFO L158 Benchmark]: RCFGBuilder took 345.29ms. Allocated memory is still 216.0MB. Free memory was 171.3MB in the beginning and 155.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:05:22,759 INFO L158 Benchmark]: TraceAbstraction took 296.21ms. Allocated memory is still 216.0MB. Free memory was 154.6MB in the beginning and 135.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 15:05:22,759 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 216.0MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:05:22,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 873.21ms. Allocated memory was 134.2MB in the beginning and 216.0MB in the end (delta: 81.8MB). Free memory was 89.5MB in the beginning and 175.5MB in the end (delta: -86.0MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.99ms. Allocated memory is still 216.0MB. Free memory was 175.5MB in the beginning and 172.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.54ms. Allocated memory is still 216.0MB. Free memory was 172.4MB in the beginning and 171.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.29ms. Allocated memory is still 216.0MB. Free memory was 171.3MB in the beginning and 155.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 296.21ms. Allocated memory is still 216.0MB. Free memory was 154.6MB in the beginning and 135.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 216.0MB. Free memory is still 135.7MB. 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={1073741831:1073741828}, argv={1073741831:1073741828}, 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_multiply_63_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_multiply_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1577] COND TRUE data < 0 VAL [data=-1073741825, dataPtr={6:0}, dataPtr={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] [L1579] data * 2 VAL [data=-1073741825, dataPtr={6:0}, dataPtr={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, 17 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=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 15:05:22,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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 3682323ed3f3e959210ae31f39b8472c2658a034394273605eede676a52e113f --- 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 15:05:24,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:05:24,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:05:24,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:05:24,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:05:24,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:05:24,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:05:24,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:05:24,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:05:24,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:05:24,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:05:24,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:05:24,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:05:24,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:05:24,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:05:24,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:05:24,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:05:24,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:05:24,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:05:24,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:05:24,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:05:24,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:05:24,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:05:24,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:05:24,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:05:24,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:05:24,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:05:24,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:05:24,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:05:24,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:05:24,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:05:24,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:05:24,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:05:24,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:05:24,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:05:24,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:05:24,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:05:24,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:05:24,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:05:24,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:05:24,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:05:24,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 15:05:24,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:05:24,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:05:24,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:05:24,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:05:24,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:05:24,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:05:24,589 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:05:24,590 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:05:24,590 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:05:24,590 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:05:24,590 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:05:24,590 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:05:24,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:05:24,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:05:24,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:05:24,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:05:24,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:05:24,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:05:24,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:05:24,592 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:05:24,593 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:05:24,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:05:24,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:05:24,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:05:24,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:05:24,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:05:24,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:05:24,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:05:24,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:05:24,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:05:24,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:05:24,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:05:24,595 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:05:24,595 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:05:24,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:05:24,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:05:24,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:05:24,596 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_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3682323ed3f3e959210ae31f39b8472c2658a034394273605eede676a52e113f [2022-12-14 15:05:24,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:05:24,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:05:24,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:05:24,843 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:05:24,843 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:05:24,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i [2022-12-14 15:05:27,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:05:27,649 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:05:27,650 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i [2022-12-14 15:05:27,669 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data/94ae30e52/1f02f09a542d48e7bb846da6c2e425db/FLAG16429a45e [2022-12-14 15:05:27,681 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/data/94ae30e52/1f02f09a542d48e7bb846da6c2e425db [2022-12-14 15:05:27,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:05:27,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:05:27,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:05:27,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:05:27,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:05:27,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:27" (1/1) ... [2022-12-14 15:05:27,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dbe4a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:27, skipping insertion in model container [2022-12-14 15:05:27,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:27" (1/1) ... [2022-12-14 15:05:27,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:05:27,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:05:28,011 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:05:28,333 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:05:28,338 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:28,340 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:28,342 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:28,343 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:28,360 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:05:28,363 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:05:28,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:05:28,377 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:05:28,392 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:05:28,428 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:05:28,429 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:28,430 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:05:28,432 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:28,432 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:05:28,436 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:05:28,437 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:05:28,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:05:28,532 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:05:28,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28 WrapperNode [2022-12-14 15:05:28,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:05:28,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:05:28,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:05:28,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:05:28,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,573 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-12-14 15:05:28,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:05:28,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:05:28,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:05:28,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:05:28,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:05:28,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:05:28,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:05:28,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:05:28,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (1/1) ... [2022-12-14 15:05:28,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:05:28,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:28,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:05:28,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:05:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:05:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:05:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:05:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:05:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:05:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:05:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:05:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:05:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 15:05:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:05:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 15:05:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:05:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 15:05:28,797 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:05:28,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:05:28,952 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:05:28,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:05:28,957 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:05:28,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:28 BoogieIcfgContainer [2022-12-14 15:05:28,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:05:28,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:05:28,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:05:28,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:05:28,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:05:27" (1/3) ... [2022-12-14 15:05:28,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a430b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:28, skipping insertion in model container [2022-12-14 15:05:28,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:28" (2/3) ... [2022-12-14 15:05:28,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a430b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:28, skipping insertion in model container [2022-12-14 15:05:28,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:28" (3/3) ... [2022-12-14 15:05:28,964 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_63_bad.i [2022-12-14 15:05:28,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:05:28,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:05:29,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:05:29,027 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;@4fcdeb7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:05:29,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:05:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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 15:05:29,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:05:29,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:29,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:29,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:05:29,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:29,041 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-14 15:05:29,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:05:29,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534419434] [2022-12-14 15:05:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:29,052 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 15:05:29,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:05:29,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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 15:05:29,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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 15:05:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:05:29,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:05:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:05:29,321 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 15:05:29,323 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:05:29,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:05:29,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:05:29,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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 15:05:29,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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 15:05:29,531 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:05:29,535 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:05:29,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:05:29 BoogieIcfgContainer [2022-12-14 15:05:29,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:05:29,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:05:29,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:05:29,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:05:29,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:28" (3/4) ... [2022-12-14 15:05:29,562 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:05:29,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:05:29,563 INFO L158 Benchmark]: Toolchain (without parser) took 1877.48ms. Allocated memory is still 113.2MB. Free memory was 92.9MB in the beginning and 59.5MB in the end (delta: 33.4MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,563 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:05:29,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 845.75ms. Allocated memory is still 113.2MB. Free memory was 92.4MB in the beginning and 62.1MB in the end (delta: 30.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.24ms. Allocated memory is still 113.2MB. Free memory was 61.7MB in the beginning and 58.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,565 INFO L158 Benchmark]: Boogie Preprocessor took 26.25ms. Allocated memory is still 113.2MB. Free memory was 58.9MB in the beginning and 56.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,566 INFO L158 Benchmark]: RCFGBuilder took 357.97ms. Allocated memory is still 113.2MB. Free memory was 56.4MB in the beginning and 79.8MB in the end (delta: -23.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,566 INFO L158 Benchmark]: TraceAbstraction took 598.53ms. Allocated memory is still 113.2MB. Free memory was 79.1MB in the beginning and 60.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,567 INFO L158 Benchmark]: Witness Printer took 3.32ms. Allocated memory is still 113.2MB. Free memory was 60.2MB in the beginning and 59.5MB in the end (delta: 673.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:05:29,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 845.75ms. Allocated memory is still 113.2MB. Free memory was 92.4MB in the beginning and 62.1MB in the end (delta: 30.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.24ms. Allocated memory is still 113.2MB. Free memory was 61.7MB in the beginning and 58.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.25ms. Allocated memory is still 113.2MB. Free memory was 58.9MB in the beginning and 56.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 357.97ms. Allocated memory is still 113.2MB. Free memory was 56.4MB in the beginning and 79.8MB in the end (delta: -23.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 598.53ms. Allocated memory is still 113.2MB. Free memory was 79.1MB in the beginning and 60.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.32ms. Allocated memory is still 113.2MB. Free memory was 60.2MB in the beginning and 59.5MB in the end (delta: 673.6kB). Peak memory consumption was 2.1MB. 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={18:13}, argv={18:13}, 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_multiply_63_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_multiply_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1577] COND TRUE data < 0 VAL [data=-2147483648, dataPtr={12:0}, dataPtr={12:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [data=-2147483648, dataPtr={12:0}, dataPtr={12:0}, 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 15:05:29,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7c419e-efdf-4cd8-946f-dcfe2ec7cfff/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