./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur --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 eeabfb55dc7b9fca215bed84d5554dcc09ff340a88524ee625c28e2d6a000c8a --- 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-38b53e6 [2022-11-25 23:37:48,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:37:48,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:37:48,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:37:48,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:37:48,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:37:48,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:37:48,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:37:48,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:37:48,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:37:48,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:37:48,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:37:48,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:37:48,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:37:48,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:37:48,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:37:48,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:37:48,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:37:48,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:37:48,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:37:48,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:37:48,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:37:48,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:37:48,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:37:48,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:37:48,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:37:48,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:37:48,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:37:48,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:37:48,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:37:48,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:37:48,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:37:48,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:37:48,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:37:48,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:37:48,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:37:48,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:37:48,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:37:48,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:37:48,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:37:48,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:37:48,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:37:48,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:37:48,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:37:48,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:37:48,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:37:48,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:37:48,337 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:37:48,337 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:37:48,338 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:37:48,338 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:37:48,338 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:37:48,339 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:37:48,339 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:37:48,339 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:37:48,339 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:37:48,340 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:37:48,340 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:37:48,340 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:37:48,341 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:37:48,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:37:48,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:37:48,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:37:48,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:37:48,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:37:48,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:37:48,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:37:48,344 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:37:48,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:37:48,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:37:48,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:37:48,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:37:48,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:37:48,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:37:48,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:37:48,346 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:37:48,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:37:48,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:37:48,347 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:37:48,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:37:48,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:37:48,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:37:48,348 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_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeabfb55dc7b9fca215bed84d5554dcc09ff340a88524ee625c28e2d6a000c8a [2022-11-25 23:37:48,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:37:48,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:37:48,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:37:48,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:37:48,738 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:37:48,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i [2022-11-25 23:37:52,125 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:37:52,611 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:37:52,615 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i [2022-11-25 23:37:52,643 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data/d6434c05d/efefda8063e940008eb0ece654d5922f/FLAGce17ea428 [2022-11-25 23:37:52,660 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data/d6434c05d/efefda8063e940008eb0ece654d5922f [2022-11-25 23:37:52,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:37:52,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:37:52,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:37:52,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:37:52,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:37:52,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:37:52" (1/1) ... [2022-11-25 23:37:52,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0d7472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:52, skipping insertion in model container [2022-11-25 23:37:52,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:37:52" (1/1) ... [2022-11-25 23:37:52,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:37:52,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:37:53,288 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:37:53,907 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:37:53,915 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:53,917 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:53,920 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:53,921 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:53,977 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:37:53,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:37:53,992 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:37:54,039 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:37:54,122 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:37:54,130 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:54,136 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:54,139 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:54,140 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:54,146 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:37:54,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:37:54,302 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:37:54,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54 WrapperNode [2022-11-25 23:37:54,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:37:54,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:37:54,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:37:54,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:37:54,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,379 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-25 23:37:54,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:37:54,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:37:54,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:37:54,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:37:54,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,422 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:37:54,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:37:54,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:37:54,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:37:54,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (1/1) ... [2022-11-25 23:37:54,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:37:54,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:37:54,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:37:54,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:37:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:37:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:37:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:37:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:37:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:37:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:37:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:37:54,705 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:37:54,707 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:37:54,961 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:37:55,092 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:37:55,093 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:37:55,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:55 BoogieIcfgContainer [2022-11-25 23:37:55,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:37:55,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:37:55,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:37:55,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:37:55,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:37:52" (1/3) ... [2022-11-25 23:37:55,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f9e3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:37:55, skipping insertion in model container [2022-11-25 23:37:55,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:54" (2/3) ... [2022-11-25 23:37:55,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f9e3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:37:55, skipping insertion in model container [2022-11-25 23:37:55,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:55" (3/3) ... [2022-11-25 23:37:55,107 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_02_bad.i [2022-11-25 23:37:55,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:37:55,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:37:55,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:37:55,197 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;@d1c7321, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:37:55,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:37:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-11-25 23:37:55,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:37:55,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:55,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:55,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:37:55,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:55,218 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-11-25 23:37:55,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:55,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916763838] [2022-11-25 23:37:55,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:55,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:37:55,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:37:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:37:55,688 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:37:55,691 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:37:55,693 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:37:55,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:37:55,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:37:55,702 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:37:55,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:37:55,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:37:55 BoogieIcfgContainer [2022-11-25 23:37:55,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:37:55,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:37:55,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:37:55,775 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:37:55,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:55" (3/4) ... [2022-11-25 23:37:55,780 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:37:55,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:37:55,783 INFO L158 Benchmark]: Toolchain (without parser) took 3116.15ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 92.2MB in the end (delta: 50.1MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-11-25 23:37:55,783 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:37:55,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1636.59ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 140.6MB in the end (delta: 1.7MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-11-25 23:37:55,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.42ms. Allocated memory is still 188.7MB. Free memory was 140.6MB in the beginning and 137.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:37:55,786 INFO L158 Benchmark]: Boogie Preprocessor took 46.39ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 136.5MB in the end (delta: 901.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:37:55,793 INFO L158 Benchmark]: RCFGBuilder took 669.13ms. Allocated memory is still 188.7MB. Free memory was 136.5MB in the beginning and 115.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:37:55,794 INFO L158 Benchmark]: TraceAbstraction took 672.46ms. Allocated memory is still 188.7MB. Free memory was 115.6MB in the beginning and 92.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 23:37:55,795 INFO L158 Benchmark]: Witness Printer took 6.58ms. Allocated memory is still 188.7MB. Free memory was 92.5MB in the beginning and 92.2MB in the end (delta: 287.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:37:55,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 134.2MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1636.59ms. Allocated memory is still 188.7MB. Free memory was 142.3MB in the beginning and 140.6MB in the end (delta: 1.7MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.42ms. Allocated memory is still 188.7MB. Free memory was 140.6MB in the beginning and 137.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.39ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 136.5MB in the end (delta: 901.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 669.13ms. Allocated memory is still 188.7MB. Free memory was 136.5MB in the beginning and 115.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 672.46ms. Allocated memory is still 188.7MB. Free memory was 115.6MB in the beginning and 92.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.58ms. Allocated memory is still 188.7MB. Free memory was 92.5MB in the beginning and 92.2MB in the end (delta: 287.9kB). 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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); [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=6442450945, argc=6442450945, argv={6442450947:6442450946}, argv={6442450947:6442450946}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_02_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data-- VAL [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: 1559]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2022-11-25 23:37:55,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur --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 eeabfb55dc7b9fca215bed84d5554dcc09ff340a88524ee625c28e2d6a000c8a --- 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-38b53e6 [2022-11-25 23:37:58,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:37:58,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:37:58,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:37:58,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:37:58,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:37:58,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:37:58,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:37:58,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:37:58,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:37:58,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:37:58,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:37:58,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:37:58,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:37:58,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:37:58,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:37:58,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:37:58,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:37:58,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:37:58,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:37:58,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:37:58,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:37:58,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:37:58,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:37:58,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:37:58,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:37:58,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:37:58,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:37:58,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:37:58,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:37:58,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:37:58,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:37:58,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:37:58,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:37:58,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:37:58,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:37:58,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:37:58,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:37:58,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:37:58,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:37:58,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:37:58,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:37:58,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:37:58,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:37:58,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:37:58,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:37:58,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:37:58,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:37:58,761 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:37:58,761 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:37:58,761 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:37:58,761 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:37:58,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:37:58,763 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:37:58,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:37:58,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:37:58,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:37:58,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:37:58,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:37:58,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:37:58,765 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:37:58,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:37:58,765 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:37:58,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:37:58,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:37:58,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:37:58,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:37:58,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:37:58,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:37:58,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:37:58,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:37:58,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:37:58,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:37:58,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:37:58,768 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:37:58,769 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:37:58,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:37:58,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:37:58,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:37:58,770 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_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeabfb55dc7b9fca215bed84d5554dcc09ff340a88524ee625c28e2d6a000c8a [2022-11-25 23:37:59,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:37:59,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:37:59,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:37:59,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:37:59,182 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:37:59,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i [2022-11-25 23:38:02,452 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:38:03,013 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:38:03,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_02_bad.i [2022-11-25 23:38:03,050 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data/1401661d7/e80a2bcf1ad4429d89f00a6486384c31/FLAG1394e9da8 [2022-11-25 23:38:03,077 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/data/1401661d7/e80a2bcf1ad4429d89f00a6486384c31 [2022-11-25 23:38:03,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:38:03,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:38:03,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:38:03,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:38:03,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:38:03,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:38:03" (1/1) ... [2022-11-25 23:38:03,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226fadf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:03, skipping insertion in model container [2022-11-25 23:38:03,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:38:03" (1/1) ... [2022-11-25 23:38:03,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:38:03,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:38:03,715 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:38:04,534 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:38:04,541 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:38:04,543 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:38:04,546 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:38:04,547 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:38:04,581 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:38:04,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:38:04,598 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:38:04,622 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:38:04,675 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:38:04,677 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:38:04,679 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:38:04,681 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:38:04,682 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:38:04,689 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:38:04,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:38:04,916 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:38:04,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04 WrapperNode [2022-11-25 23:38:04,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:38:04,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:38:04,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:38:04,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:38:04,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:04,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,026 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-25 23:38:05,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:38:05,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:38:05,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:38:05,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:38:05,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:38:05,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:38:05,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:38:05,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:38:05,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (1/1) ... [2022-11-25 23:38:05,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:38:05,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:38:05,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:38:05,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:38:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:38:05,178 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:38:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:38:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:38:05,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:38:05,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:38:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:38:05,370 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:38:05,373 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:38:05,546 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:38:05,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:38:05,553 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:38:05,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:38:05 BoogieIcfgContainer [2022-11-25 23:38:05,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:38:05,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:38:05,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:38:05,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:38:05,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:38:03" (1/3) ... [2022-11-25 23:38:05,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1107c858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:38:05, skipping insertion in model container [2022-11-25 23:38:05,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:38:04" (2/3) ... [2022-11-25 23:38:05,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1107c858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:38:05, skipping insertion in model container [2022-11-25 23:38:05,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:38:05" (3/3) ... [2022-11-25 23:38:05,566 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_02_bad.i [2022-11-25 23:38:05,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:38:05,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:38:05,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:38:05,661 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;@560b4680, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:38:05,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:38:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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) [2022-11-25 23:38:05,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:38:05,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:38:05,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:38:05,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:38:05,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:38:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-25 23:38:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:38:05,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658379746] [2022-11-25 23:38:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:38:05,717 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 [2022-11-25 23:38:05,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:38:05,723 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:38:05,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:38:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:38:05,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:38:05,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:38:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:38:05,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:38:05,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:38:05,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658379746] [2022-11-25 23:38:05,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658379746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:38:05,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:38:05,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:38:05,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274459479] [2022-11-25 23:38:05,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:38:05,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:38:05,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:38:06,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:38:06,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:38:06,051 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:38:06,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:38:06,090 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-25 23:38:06,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:38:06,093 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 23:38:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:38:06,102 INFO L225 Difference]: With dead ends: 38 [2022-11-25 23:38:06,102 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 23:38:06,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:38:06,114 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:38:06,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:38:06,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 23:38:06,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 23:38:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:38:06,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 23:38:06,164 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-25 23:38:06,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:38:06,166 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 23:38:06,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:38:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 23:38:06,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:38:06,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:38:06,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:38:06,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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)] Ended with exit code 0 [2022-11-25 23:38:06,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:38:06,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:38:06,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:38:06,385 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-25 23:38:06,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:38:06,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491289695] [2022-11-25 23:38:06,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:38:06,387 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 [2022-11-25 23:38:06,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:38:06,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:38:06,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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 (3)] Waiting until timeout for monitored process [2022-11-25 23:38:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:38:06,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:38:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:38:06,650 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:38:06,651 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:38:06,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:38:06,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:38:06,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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 (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:38:06,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:38:06,883 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:38:06,888 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:38:06,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:38:06 BoogieIcfgContainer [2022-11-25 23:38:06,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:38:06,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:38:06,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:38:06,924 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:38:06,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:38:05" (3/4) ... [2022-11-25 23:38:06,927 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 23:38:06,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:38:06,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:38:06,979 INFO L158 Benchmark]: Toolchain (without parser) took 3890.62ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.7MB in the beginning and 38.4MB in the end (delta: 10.3MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,980 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 34.9MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:38:06,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1824.89ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 32.8MB in the end (delta: 15.8MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.71ms. Allocated memory is still 73.4MB. Free memory was 32.8MB in the beginning and 29.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,982 INFO L158 Benchmark]: Boogie Preprocessor took 44.13ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 61.1MB in the end (delta: -31.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,982 INFO L158 Benchmark]: RCFGBuilder took 483.76ms. Allocated memory is still 88.1MB. Free memory was 61.1MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,983 INFO L158 Benchmark]: TraceAbstraction took 1364.38ms. Allocated memory is still 88.1MB. Free memory was 47.3MB in the beginning and 40.6MB in the end (delta: 6.8MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,984 INFO L158 Benchmark]: Witness Printer took 54.19ms. Allocated memory is still 88.1MB. Free memory was 40.6MB in the beginning and 38.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:38:06,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 34.9MB in the end (delta: 38.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1824.89ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 32.8MB in the end (delta: 15.8MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.71ms. Allocated memory is still 73.4MB. Free memory was 32.8MB in the beginning and 29.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.13ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 61.1MB in the end (delta: -31.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.76ms. Allocated memory is still 88.1MB. Free memory was 61.1MB in the beginning and 48.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1364.38ms. Allocated memory is still 88.1MB. Free memory was 47.3MB in the beginning and 40.6MB in the end (delta: 6.8MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 54.19ms. Allocated memory is still 88.1MB. Free memory was 40.6MB in the beginning and 38.4MB in the end (delta: 2.2MB). 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: 1559]: 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] [L1568] 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) [L1568] 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] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_02_bad() [L1550] int data; [L1551] data = 0 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] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] 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()=0, rand()=2, rand()=1, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data-- VAL [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: 1559]: 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: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-11-25 23:38:07,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e694dd1-826e-4924-a6ec-2af273b8573e/bin/utaipan-ByfvJB40ur/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)