./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_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_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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_638b9b1b-fc09-4fdf-9762-884aab45252e/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 056dda92fe3ddc2dc7e4f4569a0e8208f93ea230fec1d2bd44dacb02553d2fa7 --- 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 20:49:23,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:49:23,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:49:23,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:49:23,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:49:23,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:49:23,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:49:23,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:49:23,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:49:23,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:49:23,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:49:23,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:49:23,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:49:23,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:49:23,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:49:23,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:49:23,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:49:23,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:49:23,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:49:23,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:49:23,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:49:23,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:49:23,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:49:23,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:49:23,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:49:23,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:49:23,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:49:23,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:49:23,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:49:23,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:49:23,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:49:23,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:49:23,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:49:23,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:49:23,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:49:23,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:49:23,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:49:23,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:49:23,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:49:23,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:49:23,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:49:23,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:49:23,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:49:23,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:49:23,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:49:23,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:49:23,638 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:49:23,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:49:23,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:49:23,639 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:49:23,639 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:49:23,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:49:23,647 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:49:23,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:49:23,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:49:23,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:49:23,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:49:23,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:49:23,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:23,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:49:23,649 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:49:23,649 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_638b9b1b-fc09-4fdf-9762-884aab45252e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 056dda92fe3ddc2dc7e4f4569a0e8208f93ea230fec1d2bd44dacb02553d2fa7 [2022-12-13 20:49:23,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:49:23,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:49:23,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:49:23,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:49:23,855 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:49:23,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_bad.i [2022-12-13 20:49:26,456 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:49:26,683 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:49:26,684 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_bad.i [2022-12-13 20:49:26,698 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data/e143f82b9/6bb525dd5774404eb4953629606dae72/FLAG315ecf121 [2022-12-13 20:49:26,709 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data/e143f82b9/6bb525dd5774404eb4953629606dae72 [2022-12-13 20:49:26,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:49:26,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:49:26,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:49:26,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:49:26,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:49:26,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:49:26" (1/1) ... [2022-12-13 20:49:26,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2607fa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:26, skipping insertion in model container [2022-12-13 20:49:26,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:49:26" (1/1) ... [2022-12-13 20:49:26,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:49:26,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:49:26,970 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:49:27,246 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:49:27,250 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:27,252 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:27,254 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:27,254 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:27,273 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:49:27,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:49:27,281 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:49:27,294 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:49:27,323 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:49:27,325 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:27,325 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:27,327 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:27,327 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:27,331 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:49:27,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:49:27,406 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:49:27,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27 WrapperNode [2022-12-13 20:49:27,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:49:27,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:49:27,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:49:27,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:49:27,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,447 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-12-13 20:49:27,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:49:27,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:49:27,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:49:27,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:49:27,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:49:27,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:49:27,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:49:27,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:49:27,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (1/1) ... [2022-12-13 20:49:27,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:27,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:49:27,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:49:27,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:49:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:49:27,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:49:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:49:27,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:49:27,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:49:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:49:27,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:49:27,635 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:49:27,636 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:49:27,745 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:49:27,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:49:27,750 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:49:27,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:27 BoogieIcfgContainer [2022-12-13 20:49:27,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:49:27,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:49:27,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:49:27,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:49:27,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:49:26" (1/3) ... [2022-12-13 20:49:27,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e2076d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:49:27, skipping insertion in model container [2022-12-13 20:49:27,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:27" (2/3) ... [2022-12-13 20:49:27,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e2076d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:49:27, skipping insertion in model container [2022-12-13 20:49:27,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:27" (3/3) ... [2022-12-13 20:49:27,758 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_21_bad.i [2022-12-13 20:49:27,773 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:49:27,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:49:27,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:49:27,812 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;@67278876, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:49:27,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:49:27,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:49:27,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:49:27,821 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:49:27,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:49:27,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:49:27,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:49:27,826 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2022-12-13 20:49:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:49:27,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770899577] [2022-12-13 20:49:27,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:49:27,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:49:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:49:27,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:49:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:49:28,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:49:28,009 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:49:28,010 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:49:28,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:49:28,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:49:28,018 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:49:28,022 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:49:28,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:49:28 BoogieIcfgContainer [2022-12-13 20:49:28,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:49:28,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:49:28,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:49:28,047 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:49:28,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:27" (3/4) ... [2022-12-13 20:49:28,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:49:28,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:49:28,052 INFO L158 Benchmark]: Toolchain (without parser) took 1340.03ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 122.4MB in the beginning and 184.4MB in the end (delta: -62.1MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-12-13 20:49:28,052 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:49:28,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.14ms. Allocated memory is still 159.4MB. Free memory was 122.4MB in the beginning and 59.6MB in the end (delta: 62.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-12-13 20:49:28,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.96ms. Allocated memory is still 159.4MB. Free memory was 59.6MB in the beginning and 56.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:49:28,054 INFO L158 Benchmark]: Boogie Preprocessor took 17.29ms. Allocated memory is still 159.4MB. Free memory was 56.5MB in the beginning and 55.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:49:28,055 INFO L158 Benchmark]: RCFGBuilder took 285.99ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 54.8MB in the beginning and 205.4MB in the end (delta: -150.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-12-13 20:49:28,055 INFO L158 Benchmark]: TraceAbstraction took 293.18ms. Allocated memory is still 245.4MB. Free memory was 204.4MB in the beginning and 184.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 20:49:28,056 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 245.4MB. Free memory is still 184.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:49:28,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.14ms. Allocated memory is still 159.4MB. Free memory was 122.4MB in the beginning and 59.6MB in the end (delta: 62.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.96ms. Allocated memory is still 159.4MB. Free memory was 59.6MB in the beginning and 56.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.29ms. Allocated memory is still 159.4MB. Free memory was 56.5MB in the beginning and 55.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.99ms. Allocated memory was 159.4MB in the beginning and 245.4MB in the end (delta: 86.0MB). Free memory was 54.8MB in the beginning and 205.4MB in the end (delta: -150.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 293.18ms. Allocated memory is still 245.4MB. Free memory was 204.4MB in the beginning and 184.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 245.4MB. Free memory is still 184.4MB. 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1564, overapproximation of bitwiseAnd at line 1564. 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] static int badStatic = 0; VAL [badStatic=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 [badStatic=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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483649:2147483651}, argv={2147483649:2147483651}, badStatic=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_rand_postdec_21_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [badStatic=0, data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=1, rand()=0, rand()=0, rand()=65536, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] badStatic = 1 [L1566] CALL badSink(data) [L1551] COND TRUE \read(badStatic) [L1554] data-- VAL [\old(data)=-2147483648, badStatic=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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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 [2022-12-13 20:49:28,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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_638b9b1b-fc09-4fdf-9762-884aab45252e/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 056dda92fe3ddc2dc7e4f4569a0e8208f93ea230fec1d2bd44dacb02553d2fa7 --- 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 20:49:29,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:49:29,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:49:29,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:49:29,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:49:29,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:49:29,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:49:29,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:49:29,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:49:29,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:49:29,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:49:29,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:49:29,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:49:29,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:49:29,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:49:29,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:49:29,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:49:29,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:49:29,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:49:29,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:49:29,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:49:29,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:49:29,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:49:29,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:49:29,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:49:29,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:49:29,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:49:29,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:49:29,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:49:29,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:49:29,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:49:29,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:49:29,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:49:29,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:49:29,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:49:29,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:49:29,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:49:29,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:49:29,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:49:29,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:49:29,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:49:29,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:49:29,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:49:29,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:49:29,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:49:29,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:49:29,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:49:29,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:49:29,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:49:29,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:49:29,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:49:29,645 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:49:29,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:49:29,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:29,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:49:29,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:49:29,648 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:49:29,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:49:29,648 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:49:29,648 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:49:29,648 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_638b9b1b-fc09-4fdf-9762-884aab45252e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 056dda92fe3ddc2dc7e4f4569a0e8208f93ea230fec1d2bd44dacb02553d2fa7 [2022-12-13 20:49:29,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:49:29,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:49:29,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:49:29,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:49:29,872 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:49:29,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_bad.i [2022-12-13 20:49:32,503 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:49:32,723 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:49:32,723 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_21_bad.i [2022-12-13 20:49:32,737 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data/cd5bc3e70/0c723f5e5fb843758d0d85d523e033e9/FLAGbecbfe8e2 [2022-12-13 20:49:32,748 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/data/cd5bc3e70/0c723f5e5fb843758d0d85d523e033e9 [2022-12-13 20:49:32,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:49:32,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:49:32,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:49:32,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:49:32,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:49:32,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:49:32" (1/1) ... [2022-12-13 20:49:32,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5220b8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:32, skipping insertion in model container [2022-12-13 20:49:32,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:49:32" (1/1) ... [2022-12-13 20:49:32,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:49:32,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:49:33,023 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:49:33,321 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:49:33,326 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:33,328 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:33,330 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:33,331 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:33,358 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:49:33,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:49:33,370 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:49:33,391 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:49:33,441 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:49:33,459 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:33,460 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:49:33,463 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:33,463 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:49:33,468 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:49:33,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:49:33,596 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:49:33,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33 WrapperNode [2022-12-13 20:49:33,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:49:33,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:49:33,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:49:33,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:49:33,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,641 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-12-13 20:49:33,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:49:33,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:49:33,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:49:33,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:49:33,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,666 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:49:33,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:49:33,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:49:33,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:49:33,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (1/1) ... [2022-12-13 20:49:33,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:49:33,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:49:33,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:49:33,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:49:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:49:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:49:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:49:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:49:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:49:33,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:49:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:49:33,838 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:49:33,839 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:49:33,951 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:49:33,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:49:33,957 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:49:33,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:33 BoogieIcfgContainer [2022-12-13 20:49:33,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:49:33,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:49:33,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:49:33,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:49:33,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:49:32" (1/3) ... [2022-12-13 20:49:33,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d650ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:49:33, skipping insertion in model container [2022-12-13 20:49:33,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:49:33" (2/3) ... [2022-12-13 20:49:33,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d650ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:49:33, skipping insertion in model container [2022-12-13 20:49:33,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:33" (3/3) ... [2022-12-13 20:49:33,967 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_21_bad.i [2022-12-13 20:49:33,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:49:33,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:49:34,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:49:34,031 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;@258db612, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:49:34,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:49:34,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:49:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:49:34,039 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:49:34,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:49:34,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:49:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:49:34,043 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2022-12-13 20:49:34,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:49:34,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803151719] [2022-12-13 20:49:34,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:49:34,053 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 20:49:34,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:49:34,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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 20:49:34,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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 20:49:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:49:34,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:49:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:49:34,234 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:49:34,236 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:49:34,237 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:49:34,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:49:34,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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 20:49:34,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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 20:49:34,450 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:49:34,464 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:49:34,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:49:34 BoogieIcfgContainer [2022-12-13 20:49:34,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:49:34,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:49:34,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:49:34,530 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:49:34,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:49:33" (3/4) ... [2022-12-13 20:49:34,536 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 20:49:34,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:49:34,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:49:34,602 INFO L158 Benchmark]: Toolchain (without parser) took 1850.52ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 44.6MB in the end (delta: 14.4MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-13 20:49:34,602 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:49:34,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 844.02ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 53.7MB in the end (delta: 5.3MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2022-12-13 20:49:34,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.44ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 50.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:49:34,603 INFO L158 Benchmark]: Boogie Preprocessor took 27.56ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 48.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:49:34,604 INFO L158 Benchmark]: RCFGBuilder took 289.62ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 35.3MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 20:49:34,604 INFO L158 Benchmark]: TraceAbstraction took 566.80ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 47.2MB in the end (delta: -12.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:49:34,604 INFO L158 Benchmark]: Witness Printer took 71.41ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 44.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:49:34,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 844.02ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 53.7MB in the end (delta: 5.3MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.44ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 50.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.56ms. Allocated memory is still 83.9MB. Free memory was 50.4MB in the beginning and 48.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.62ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 35.3MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 566.80ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 47.2MB in the end (delta: -12.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.41ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 44.6MB in the end (delta: 2.5MB). 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 - CounterExampleResult [Line: 1554]: integer overflow possible integer overflow possible We found a 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] static int badStatic = 0; VAL [badStatic=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 [badStatic=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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, badStatic=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_rand_postdec_21_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [badStatic=0, data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=0, rand()=1073741823, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] badStatic = 1 [L1566] CALL badSink(data) [L1551] COND TRUE \read(badStatic) [L1554] data-- VAL [\old(data)=-2147483648, badStatic=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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s 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 proved your program to be incorrect! [2022-12-13 20:49:34,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638b9b1b-fc09-4fdf-9762-884aab45252e/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)