./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_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_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:39:52,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:39:52,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:39:52,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:39:52,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:39:52,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:39:52,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:39:52,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:39:52,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:39:52,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:39:52,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:39:52,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:39:52,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:39:52,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:39:52,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:39:52,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:39:52,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:39:52,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:39:52,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:39:52,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:39:52,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:39:52,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:39:52,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:39:52,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:39:52,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:39:52,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:39:52,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:39:52,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:39:52,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:39:52,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:39:52,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:39:52,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:39:52,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:39:52,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:39:52,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:39:52,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:39:52,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:39:52,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:39:52,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:39:52,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:39:52,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:39:52,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:39:52,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:39:52,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:39:52,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:39:52,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:39:52,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:39:52,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:39:52,314 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:39:52,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:39:52,314 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:39:52,314 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:39:52,314 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:39:52,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:39:52,315 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:39:52,315 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:39:52,315 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:39:52,315 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:39:52,315 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:39:52,315 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:39:52,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:39:52,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:39:52,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:39:52,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:39:52,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:39:52,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:39:52,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:39:52,317 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:39:52,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:39:52,317 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:39:52,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:39:52,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:39:52,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:39:52,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:52,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:39:52,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 [2022-12-14 13:39:52,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:39:52,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:39:52,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:39:52,509 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:39:52,509 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:39:52,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2022-12-14 13:39:55,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:39:55,375 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:39:55,376 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2022-12-14 13:39:55,388 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data/6b8aebb34/fa0140ccff2645f29720c9d317b0f7ab/FLAG621c23ade [2022-12-14 13:39:55,402 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data/6b8aebb34/fa0140ccff2645f29720c9d317b0f7ab [2022-12-14 13:39:55,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:39:55,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:39:55,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:39:55,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:39:55,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:39:55,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:39:55" (1/1) ... [2022-12-14 13:39:55,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c73a2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:55, skipping insertion in model container [2022-12-14 13:39:55,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:39:55" (1/1) ... [2022-12-14 13:39:55,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:39:55,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:39:55,721 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:39:56,047 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:56,051 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:39:56,053 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:39:56,055 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:39:56,055 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:39:56,073 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:39:56,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:39:56,081 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:39:56,094 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:39:56,125 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:39:56,126 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:39:56,127 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:39:56,129 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:39:56,129 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:39:56,133 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:39:56,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:39:56,217 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:39:56,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56 WrapperNode [2022-12-14 13:39:56,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:39:56,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:39:56,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:39:56,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:39:56,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,270 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-14 13:39:56,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:39:56,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:39:56,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:39:56,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:39:56,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:39:56,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:39:56,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:39:56,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:39:56,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:56,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:39:56,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:39:56,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:39:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:39:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:39:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:39:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:39:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:39:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:39:56,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:39:56,451 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:39:56,452 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:39:56,562 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:39:56,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:39:56,637 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:39:56,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:56 BoogieIcfgContainer [2022-12-14 13:39:56,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:39:56,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:39:56,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:39:56,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:39:56,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:39:55" (1/3) ... [2022-12-14 13:39:56,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621bd0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:39:56, skipping insertion in model container [2022-12-14 13:39:56,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (2/3) ... [2022-12-14 13:39:56,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621bd0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:39:56, skipping insertion in model container [2022-12-14 13:39:56,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:56" (3/3) ... [2022-12-14 13:39:56,648 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2022-12-14 13:39:56,664 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:39:56,664 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:39:56,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:39:56,703 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ebc7006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:39:56,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:39:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-12-14 13:39:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:39:56,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:56,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:39:56,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:39:56,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:39:56,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2064490869, now seen corresponding path program 1 times [2022-12-14 13:39:56,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:39:56,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4047314] [2022-12-14 13:39:56,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:56,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:39:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:39:56,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:39:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:39:56,978 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:39:56,980 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:39:56,981 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:39:56,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:39:56,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:39:56,988 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:39:56,993 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:39:57,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:39:57 BoogieIcfgContainer [2022-12-14 13:39:57,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:39:57,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:39:57,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:39:57,014 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:39:57,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:56" (3/4) ... [2022-12-14 13:39:57,018 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:39:57,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:39:57,019 INFO L158 Benchmark]: Toolchain (without parser) took 1612.95ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 95.5MB in the beginning and 128.9MB in the end (delta: -33.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-12-14 13:39:57,020 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:39:57,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.77ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 83.6MB in the end (delta: 11.8MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-12-14 13:39:57,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.85ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 80.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:39:57,021 INFO L158 Benchmark]: Boogie Preprocessor took 23.62ms. Allocated memory is still 136.3MB. Free memory was 80.7MB in the beginning and 78.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:39:57,022 INFO L158 Benchmark]: RCFGBuilder took 343.98ms. Allocated memory is still 136.3MB. Free memory was 78.7MB in the beginning and 60.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:39:57,022 INFO L158 Benchmark]: TraceAbstraction took 371.64ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 60.5MB in the beginning and 128.9MB in the end (delta: -68.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:39:57,023 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 174.1MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:39:57,025 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 136.3MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 810.77ms. Allocated memory is still 136.3MB. Free memory was 95.5MB in the beginning and 83.6MB in the end (delta: 11.8MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.85ms. Allocated memory is still 136.3MB. Free memory was 83.6MB in the beginning and 80.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.62ms. Allocated memory is still 136.3MB. Free memory was 80.7MB in the beginning and 78.7MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 343.98ms. Allocated memory is still 136.3MB. Free memory was 78.7MB in the beginning and 60.6MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 371.64ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 60.5MB in the beginning and 128.9MB in the end (delta: -68.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 174.1MB. Free memory is still 128.9MB. 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: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1552, overapproximation of bitwiseAnd at line 1552. 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); [L1565] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] data - 1 VAL [data=-2147483648, data=-2147483648, dataCopy=-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: 1557]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=12occurred 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 13:39:57,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:39:58,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:39:58,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:39:58,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:39:58,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:39:58,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:39:58,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:39:58,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:39:58,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:39:58,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:39:58,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:39:58,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:39:58,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:39:58,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:39:58,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:39:58,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:39:58,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:39:58,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:39:58,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:39:58,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:39:58,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:39:58,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:39:58,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:39:58,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:39:58,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:39:58,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:39:58,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:39:58,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:39:58,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:39:58,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:39:58,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:39:58,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:39:58,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:39:58,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:39:58,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:39:58,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:39:58,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:39:58,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:39:58,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:39:58,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:39:58,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:39:58,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 13:39:58,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:39:58,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:39:58,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:39:58,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:39:58,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:39:58,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:39:58,690 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:39:58,690 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:39:58,690 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:39:58,690 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:39:58,690 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:39:58,690 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:39:58,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:39:58,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:39:58,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:39:58,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:39:58,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:39:58,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:39:58,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:39:58,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:58,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:39:58,693 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:39:58,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:39:58,694 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:39:58,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:39:58,694 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e9afc5780e8a4b9f0ff37d4e977f12ee8b12977c04701e0eedbb9c1647d0234 [2022-12-14 13:39:58,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:39:58,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:39:58,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:39:58,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:39:58,947 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:39:58,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2022-12-14 13:40:01,583 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:40:01,800 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:40:01,801 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2022-12-14 13:40:01,815 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data/41351114b/aa1b367c31b54cc7987b04e2f7ec9513/FLAGa3c1ee8b6 [2022-12-14 13:40:01,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/data/41351114b/aa1b367c31b54cc7987b04e2f7ec9513 [2022-12-14 13:40:01,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:40:01,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:40:01,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:40:01,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:40:01,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:40:01,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:40:01" (1/1) ... [2022-12-14 13:40:01,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2a810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:01, skipping insertion in model container [2022-12-14 13:40:01,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:40:01" (1/1) ... [2022-12-14 13:40:01,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:40:01,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:40:02,136 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:40:02,452 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:40:02,457 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:40:02,458 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:40:02,460 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:40:02,460 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:40:02,482 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:40:02,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:40:02,494 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:40:02,509 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:40:02,560 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:40:02,562 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:40:02,563 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:40:02,565 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:40:02,566 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:40:02,570 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:40:02,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:40:02,691 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:40:02,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02 WrapperNode [2022-12-14 13:40:02,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:40:02,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:40:02,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:40:02,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:40:02,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,739 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-14 13:40:02,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:40:02,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:40:02,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:40:02,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:40:02,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:40:02,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:40:02,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:40:02,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:40:02,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (1/1) ... [2022-12-14 13:40:02,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:40:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:40:02,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:40:02,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:40:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:40:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:40:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:40:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:40:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:40:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:40:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:40:02,935 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:40:02,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:40:03,050 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:40:03,054 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:40:03,054 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:40:03,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:40:03 BoogieIcfgContainer [2022-12-14 13:40:03,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:40:03,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:40:03,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:40:03,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:40:03,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:40:01" (1/3) ... [2022-12-14 13:40:03,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e171922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:40:03, skipping insertion in model container [2022-12-14 13:40:03,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:40:02" (2/3) ... [2022-12-14 13:40:03,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e171922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:40:03, skipping insertion in model container [2022-12-14 13:40:03,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:40:03" (3/3) ... [2022-12-14 13:40:03,062 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_31_bad.i [2022-12-14 13:40:03,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:40:03,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:40:03,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:40:03,118 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@ea14375, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:40:03,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:40:03,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-12-14 13:40:03,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:40:03,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:40:03,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:40:03,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:40:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:40:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-12-14 13:40:03,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:40:03,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201272094] [2022-12-14 13:40:03,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:03,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:40:03,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:40:03,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:40:03,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:40:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:40:03,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:40:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:40:03,274 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:40:03,275 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:40:03,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:40:03,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:40:03,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:40:03,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:40:03,486 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:40:03,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:40:03,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:40:03 BoogieIcfgContainer [2022-12-14 13:40:03,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:40:03,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:40:03,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:40:03,558 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:40:03,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:40:03" (3/4) ... [2022-12-14 13:40:03,561 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:40:03,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:40:03,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:40:03,607 INFO L158 Benchmark]: Toolchain (without parser) took 1778.11ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 76.4MB in the end (delta: -1.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,608 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:40:03,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 861.27ms. Allocated memory is still 104.9MB. Free memory was 74.2MB in the beginning and 77.1MB in the end (delta: -2.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.23ms. Allocated memory is still 104.9MB. Free memory was 77.1MB in the beginning and 73.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,609 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 104.9MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,609 INFO L158 Benchmark]: RCFGBuilder took 291.79ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 59.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,614 INFO L158 Benchmark]: TraceAbstraction took 499.88ms. Allocated memory is still 104.9MB. Free memory was 58.2MB in the beginning and 41.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,616 INFO L158 Benchmark]: Witness Printer took 48.34ms. Allocated memory is still 104.9MB. Free memory was 41.4MB in the beginning and 76.4MB in the end (delta: -35.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:40:03,618 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 52.4MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 861.27ms. Allocated memory is still 104.9MB. Free memory was 74.2MB in the beginning and 77.1MB in the end (delta: -2.9MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.23ms. Allocated memory is still 104.9MB. Free memory was 77.1MB in the beginning and 73.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 104.9MB. Free memory was 73.8MB in the beginning and 71.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.79ms. Allocated memory is still 104.9MB. Free memory was 71.7MB in the beginning and 59.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 499.88ms. Allocated memory is still 104.9MB. Free memory was 58.2MB in the beginning and 41.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 48.34ms. Allocated memory is still 104.9MB. Free memory was 41.4MB in the beginning and 76.4MB in the end (delta: -35.0MB). Peak memory consumption was 4.2MB. 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: 1557]: 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [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()=1073741823, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] data - 1 VAL [data=-2147483648, data=-2147483648, dataCopy=-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: 1557]: 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, 21 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=21occurred 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, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 13:40:03,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b06537b-8f19-4973-8f1a-fa2461943f4a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)