./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_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_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 --- 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 [2022-12-13 18:32:34,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:32:34,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:32:34,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:32:34,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:32:34,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:32:34,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:32:34,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:32:34,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:32:34,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:32:34,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:32:34,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:32:34,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:32:34,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:32:34,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:32:34,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:32:34,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:32:34,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:32:34,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:32:34,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:32:34,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:32:34,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:32:34,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:32:34,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:32:34,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:32:34,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:32:34,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:32:34,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:32:34,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:32:34,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:32:34,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:32:34,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:32:34,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:32:34,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:32:34,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:32:34,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:32:34,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:32:34,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:32:34,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:32:34,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:32:34,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:32:34,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 18:32:34,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:32:34,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:32:34,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:32:34,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:32:34,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:32:34,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:32:34,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:32:34,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:32:34,575 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:32:34,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:32:34,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:32:34,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:32:34,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:32:34,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:32:34,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:32:34,578 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 [2022-12-13 18:32:34,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:32:34,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:32:34,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:32:34,797 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:32:34,797 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:32:34,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2022-12-13 18:32:37,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:32:37,688 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:32:37,688 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2022-12-13 18:32:37,705 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data/ef37905c6/10ceb82002af4b36a9af228b83359dfd/FLAGe556d19f3 [2022-12-13 18:32:37,718 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data/ef37905c6/10ceb82002af4b36a9af228b83359dfd [2022-12-13 18:32:37,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:32:37,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:32:37,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:32:37,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:32:37,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:32:37,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:32:37" (1/1) ... [2022-12-13 18:32:37,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec421c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:37, skipping insertion in model container [2022-12-13 18:32:37,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:32:37" (1/1) ... [2022-12-13 18:32:37,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:32:37,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:32:38,007 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:32:38,323 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:32:38,327 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:38,328 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:38,330 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:38,331 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:38,346 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:32:38,348 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:32:38,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:32:38,358 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:32:38,371 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:32:38,400 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:32:38,401 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:38,401 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:38,403 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:38,403 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:38,406 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:32:38,407 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:32:38,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:32:38,504 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:32:38,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38 WrapperNode [2022-12-13 18:32:38,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:32:38,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:32:38,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:32:38,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:32:38,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,540 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-13 18:32:38,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:32:38,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:32:38,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:32:38,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:32:38,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,556 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:32:38,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:32:38,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:32:38,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:32:38,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (1/1) ... [2022-12-13 18:32:38,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:32:38,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:32:38,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:32:38,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:32:38,616 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:32:38,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:32:38,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:32:38,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:32:38,728 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:32:38,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:32:38,834 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:32:38,838 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:32:38,839 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:32:38,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:32:38 BoogieIcfgContainer [2022-12-13 18:32:38,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:32:38,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:32:38,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:32:38,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:32:38,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:32:37" (1/3) ... [2022-12-13 18:32:38,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7c4569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:32:38, skipping insertion in model container [2022-12-13 18:32:38,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:38" (2/3) ... [2022-12-13 18:32:38,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7c4569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:32:38, skipping insertion in model container [2022-12-13 18:32:38,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:32:38" (3/3) ... [2022-12-13 18:32:38,846 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2022-12-13 18:32:38,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:32:38,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:32:38,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:32:38,896 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=PETRI_NET, 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;@71220f01, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:32:38,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:32:38,899 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) [2022-12-13 18:32:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:32:38,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:32:38,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:32:38,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:32:38,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:32:38,909 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 18:32:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:32:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858802379] [2022-12-13 18:32:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:32:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:32:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:32:39,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:32:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:32:39,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:32:39,045 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:32:39,046 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:32:39,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:32:39,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:32:39,052 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 18:32:39,055 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:32:39,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:32:39 BoogieIcfgContainer [2022-12-13 18:32:39,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:32:39,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:32:39,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:32:39,071 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:32:39,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:32:38" (3/4) ... [2022-12-13 18:32:39,073 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:32:39,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:32:39,074 INFO L158 Benchmark]: Toolchain (without parser) took 1352.37ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 83.0MB in the beginning and 59.5MB in the end (delta: 23.5MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2022-12-13 18:32:39,074 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:32:39,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.69ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 83.0MB in the beginning and 95.1MB in the end (delta: -12.2MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2022-12-13 18:32:39,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.38ms. Allocated memory is still 146.8MB. Free memory was 95.1MB in the beginning and 92.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:32:39,075 INFO L158 Benchmark]: Boogie Preprocessor took 17.56ms. Allocated memory is still 146.8MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:32:39,076 INFO L158 Benchmark]: RCFGBuilder took 280.96ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 78.1MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:32:39,076 INFO L158 Benchmark]: TraceAbstraction took 228.51ms. Allocated memory is still 146.8MB. Free memory was 77.2MB in the beginning and 60.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 18:32:39,077 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 146.8MB. Free memory was 60.4MB in the beginning and 59.5MB in the end (delta: 930.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:32:39,078 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 119.5MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.69ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 83.0MB in the beginning and 95.1MB in the end (delta: -12.2MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.38ms. Allocated memory is still 146.8MB. Free memory was 95.1MB in the beginning and 92.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.56ms. Allocated memory is still 146.8MB. Free memory was 92.8MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 280.96ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 78.1MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 228.51ms. Allocated memory is still 146.8MB. Free memory was 77.2MB in the beginning and 60.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 146.8MB. Free memory was 60.4MB in the beginning and 59.5MB in the end (delta: 930.8kB). 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741827:1073741831}, argv={1073741827:1073741831}, CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal) [L1582] data-- VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=1, data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: 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: 0.2s, 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=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, 0.0s 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 [2022-12-13 18:32:39,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 --- 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 [2022-12-13 18:32:40,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:32:40,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:32:40,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:32:40,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:32:40,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:32:40,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:32:40,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:32:40,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:32:40,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:32:40,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:32:40,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:32:40,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:32:40,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:32:40,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:32:40,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:32:40,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:32:40,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:32:40,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:32:40,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:32:40,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:32:40,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:32:40,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:32:40,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:32:40,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:32:40,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:32:40,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:32:40,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:32:40,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:32:40,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:32:40,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:32:40,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:32:40,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:32:40,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:32:40,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:32:40,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:32:40,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:32:40,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:32:40,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:32:40,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:32:40,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:32:40,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 18:32:40,823 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:32:40,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:32:40,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:32:40,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:32:40,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:32:40,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:32:40,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:32:40,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:32:40,825 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:32:40,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:32:40,826 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:32:40,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:32:40,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:32:40,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:32:40,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:32:40,827 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:32:40,827 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:32:40,827 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:32:40,827 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:32:40,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:32:40,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:32:40,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:32:40,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:32:40,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:32:40,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:32:40,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:32:40,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:32:40,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:32:40,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:32:40,829 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:32:40,830 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:32:40,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:32:40,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:32:40,830 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:32:40,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:32:40,830 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:32:40,831 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:32:40,831 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dd2ebae3e4efedbc7c5167fcbd380e697a52b1008674458a69e2697e3b8a545 [2022-12-13 18:32:41,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:32:41,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:32:41,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:32:41,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:32:41,083 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:32:41,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2022-12-13 18:32:43,685 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:32:43,956 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:32:43,957 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2022-12-13 18:32:43,974 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data/a9d23f871/9c8474d2333b473898499bf183d58249/FLAG77749b0a4 [2022-12-13 18:32:43,988 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/data/a9d23f871/9c8474d2333b473898499bf183d58249 [2022-12-13 18:32:43,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:32:43,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:32:43,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:32:43,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:32:43,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:32:43,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:32:43" (1/1) ... [2022-12-13 18:32:43,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc8c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:43, skipping insertion in model container [2022-12-13 18:32:43,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:32:43" (1/1) ... [2022-12-13 18:32:44,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:32:44,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:32:44,302 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:32:44,658 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:32:44,667 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:44,669 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:44,671 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:44,671 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:44,689 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:32:44,691 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:32:44,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:32:44,709 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:32:44,721 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:32:44,751 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:32:44,752 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:44,753 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:32:44,754 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:44,755 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:32:44,758 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:32:44,759 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:32:44,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:32:44,837 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:32:44,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44 WrapperNode [2022-12-13 18:32:44,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:32:44,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:32:44,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:32:44,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:32:44,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,873 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-12-13 18:32:44,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:32:44,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:32:44,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:32:44,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:32:44,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:32:44,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:32:44,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:32:44,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:32:44,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (1/1) ... [2022-12-13 18:32:44,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:32:44,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:32:44,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:32:44,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:32:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:32:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:32:44,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:32:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:32:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:32:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:32:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:32:44,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:32:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:32:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:32:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 18:32:45,070 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:32:45,071 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:32:45,195 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:32:45,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:32:45,201 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:32:45,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:32:45 BoogieIcfgContainer [2022-12-13 18:32:45,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:32:45,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:32:45,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:32:45,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:32:45,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:32:43" (1/3) ... [2022-12-13 18:32:45,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8c0b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:32:45, skipping insertion in model container [2022-12-13 18:32:45,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:32:44" (2/3) ... [2022-12-13 18:32:45,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8c0b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:32:45, skipping insertion in model container [2022-12-13 18:32:45,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:32:45" (3/3) ... [2022-12-13 18:32:45,212 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_22_bad.i [2022-12-13 18:32:45,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:32:45,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:32:45,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:32:45,283 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=PETRI_NET, 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;@226ee32a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:32:45,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:32:45,287 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) [2022-12-13 18:32:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:32:45,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:32:45,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:32:45,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:32:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:32:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 18:32:45,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:32:45,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519995649] [2022-12-13 18:32:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:32:45,315 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 [2022-12-13 18:32:45,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:32:45,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 18:32:45,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:32:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:32:45,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:32:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:32:45,495 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:32:45,497 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:32:45,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:32:45,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:32:45,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:32:45,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:32:45,704 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 18:32:45,711 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:32:45,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:32:45 BoogieIcfgContainer [2022-12-13 18:32:45,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:32:45,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:32:45,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:32:45,729 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:32:45,729 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:32:45" (3/4) ... [2022-12-13 18:32:45,731 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:32:45,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:32:45,732 INFO L158 Benchmark]: Toolchain (without parser) took 1740.04ms. Allocated memory is still 88.1MB. Free memory was 63.5MB in the beginning and 59.5MB in the end (delta: 3.9MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-13 18:32:45,732 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:32:45,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.88ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 44.7MB in the end (delta: 18.5MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-12-13 18:32:45,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.95ms. Allocated memory is still 88.1MB. Free memory was 44.7MB in the beginning and 41.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:32:45,733 INFO L158 Benchmark]: Boogie Preprocessor took 20.39ms. Allocated memory is still 88.1MB. Free memory was 41.4MB in the beginning and 39.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:32:45,734 INFO L158 Benchmark]: RCFGBuilder took 308.58ms. Allocated memory is still 88.1MB. Free memory was 39.4MB in the beginning and 51.8MB in the end (delta: -12.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-12-13 18:32:45,734 INFO L158 Benchmark]: TraceAbstraction took 522.30ms. Allocated memory is still 88.1MB. Free memory was 50.9MB in the beginning and 60.0MB in the end (delta: -9.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:32:45,734 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 88.1MB. Free memory was 60.0MB in the beginning and 59.5MB in the end (delta: 479.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:32:45,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 843.88ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 44.7MB in the end (delta: 18.5MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.95ms. Allocated memory is still 88.1MB. Free memory was 44.7MB in the beginning and 41.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.39ms. Allocated memory is still 88.1MB. Free memory was 41.4MB in the beginning and 39.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.58ms. Allocated memory is still 88.1MB. Free memory was 39.4MB in the beginning and 51.8MB in the end (delta: -12.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * TraceAbstraction took 522.30ms. Allocated memory is still 88.1MB. Free memory was 50.9MB in the beginning and 60.0MB in the end (delta: -9.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 88.1MB. Free memory was 60.0MB in the beginning and 59.5MB in the end (delta: 479.0kB). 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_postdec_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal) [L1582] data-- VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_22_badGlobal=1, data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: 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: 0.4s, 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, 0.0s 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 [2022-12-13 18:32:45,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6eec1d0-54b8-4fe3-93bb-01b28eb4c639/bin/uautomizer-uyxdKDjOR8/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