./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 7a16c33033d4262e1c6f61b3356aece15a1c700f0980b728c290e851ae7b2150 --- 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 23:27:54,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:27:54,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:27:54,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:27:54,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:27:54,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:27:54,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:27:54,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:27:54,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:27:54,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:27:54,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:27:54,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:27:54,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:27:54,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:27:54,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:27:54,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:27:54,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:27:54,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:27:54,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:27:54,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:27:54,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:27:54,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:27:54,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:27:54,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:27:54,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:27:54,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:27:54,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:27:54,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:27:54,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:27:54,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:27:54,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:27:54,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:27:54,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:27:54,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:27:54,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:27:54,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:27:54,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:27:54,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:27:54,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:27:54,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:27:54,371 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:27:54,372 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:27:54,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:27:54,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:27:54,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:27:54,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:27:54,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:27:54,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:27:54,423 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:27:54,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:27:54,424 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:27:54,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:27:54,426 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:27:54,426 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:27:54,426 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:27:54,427 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:27:54,427 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:27:54,428 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:27:54,428 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:27:54,428 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:27:54,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:27:54,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:27:54,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:27:54,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:27:54,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:27:54,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:27:54,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:27:54,432 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:27:54,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:27:54,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:27:54,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:27:54,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:27:54,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:27:54,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:27:54,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:27:54,435 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:27:54,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:27:54,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:27:54,436 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:27:54,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:27:54,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:27:54,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:27:54,438 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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a16c33033d4262e1c6f61b3356aece15a1c700f0980b728c290e851ae7b2150 [2022-11-25 23:27:54,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:27:54,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:27:54,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:27:54,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:27:54,915 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:27:54,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_bad.i [2022-11-25 23:27:58,571 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:27:59,104 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:27:59,105 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_bad.i [2022-11-25 23:27:59,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data/78a6b193c/6990cf5965274f6ea8fe7eb318ad25ea/FLAG54438a10d [2022-11-25 23:27:59,169 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data/78a6b193c/6990cf5965274f6ea8fe7eb318ad25ea [2022-11-25 23:27:59,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:27:59,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:27:59,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:27:59,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:27:59,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:27:59,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:27:59" (1/1) ... [2022-11-25 23:27:59,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20692a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:27:59, skipping insertion in model container [2022-11-25 23:27:59,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:27:59" (1/1) ... [2022-11-25 23:27:59,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:27:59,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:27:59,749 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:28:00,370 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:28:00,377 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:00,384 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:00,395 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:00,399 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:00,462 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:28:00,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:28:00,487 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:28:00,527 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:28:00,628 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:28:00,632 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:00,635 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:00,648 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:00,649 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:00,658 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:28:00,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:28:00,834 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:28:00,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00 WrapperNode [2022-11-25 23:28:00,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:28:00,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:28:00,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:28:00,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:28:00,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:00,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:00,959 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2022-11-25 23:28:00,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:28:00,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:28:00,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:28:00,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:28:00,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:00,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:00,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:00,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:01,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:01,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:01,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:01,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:01,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:28:01,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:28:01,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:28:01,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:28:01,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (1/1) ... [2022-11-25 23:28:01,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:28:01,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:01,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:28:01,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:28:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:28:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:28:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:28:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:28:01,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:28:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-25 23:28:01,176 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-25 23:28:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:28:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:28:01,456 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:28:01,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:28:01,645 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:28:01,756 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:28:01,756 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:28:01,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:28:01 BoogieIcfgContainer [2022-11-25 23:28:01,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:28:01,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:28:01,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:28:01,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:28:01,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:27:59" (1/3) ... [2022-11-25 23:28:01,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339b4fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:28:01, skipping insertion in model container [2022-11-25 23:28:01,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:00" (2/3) ... [2022-11-25 23:28:01,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339b4fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:28:01, skipping insertion in model container [2022-11-25 23:28:01,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:28:01" (3/3) ... [2022-11-25 23:28:01,772 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_08_bad.i [2022-11-25 23:28:01,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:28:01,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:28:01,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:28:01,870 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;@343cf596, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:28:01,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:28:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 23:28:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:28:01,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:01,891 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:01,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:28:01,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash -47595731, now seen corresponding path program 1 times [2022-11-25 23:28:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:28:01,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779823933] [2022-11-25 23:28:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:28:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:28:02,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:28:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:28:02,486 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:28:02,489 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:28:02,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:28:02,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:28:02,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:28:02,500 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:28:02,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:28:02,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:28:02 BoogieIcfgContainer [2022-11-25 23:28:02,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:28:02,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:28:02,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:28:02,582 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:28:02,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:28:01" (3/4) ... [2022-11-25 23:28:02,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:28:02,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:28:02,590 INFO L158 Benchmark]: Toolchain (without parser) took 3414.06ms. Allocated memory was 180.4MB in the beginning and 249.6MB in the end (delta: 69.2MB). Free memory was 130.2MB in the beginning and 171.6MB in the end (delta: -41.4MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2022-11-25 23:28:02,591 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 180.4MB. Free memory was 152.2MB in the beginning and 152.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:28:02,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1657.07ms. Allocated memory is still 180.4MB. Free memory was 130.2MB in the beginning and 69.5MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-25 23:28:02,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.46ms. Allocated memory was 180.4MB in the beginning and 249.6MB in the end (delta: 69.2MB). Free memory was 69.5MB in the beginning and 217.8MB in the end (delta: -148.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-25 23:28:02,604 INFO L158 Benchmark]: Boogie Preprocessor took 69.99ms. Allocated memory is still 249.6MB. Free memory was 217.8MB in the beginning and 216.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:28:02,604 INFO L158 Benchmark]: RCFGBuilder took 728.39ms. Allocated memory is still 249.6MB. Free memory was 216.7MB in the beginning and 195.8MB in the end (delta: 21.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 23:28:02,605 INFO L158 Benchmark]: TraceAbstraction took 814.90ms. Allocated memory is still 249.6MB. Free memory was 194.7MB in the beginning and 172.7MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:28:02,609 INFO L158 Benchmark]: Witness Printer took 6.56ms. Allocated memory is still 249.6MB. Free memory was 172.7MB in the beginning and 171.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:28:02,615 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 180.4MB. Free memory was 152.2MB in the beginning and 152.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1657.07ms. Allocated memory is still 180.4MB. Free memory was 130.2MB in the beginning and 69.5MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.46ms. Allocated memory was 180.4MB in the beginning and 249.6MB in the end (delta: 69.2MB). Free memory was 69.5MB in the beginning and 217.8MB in the end (delta: -148.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.99ms. Allocated memory is still 249.6MB. Free memory was 217.8MB in the beginning and 216.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 728.39ms. Allocated memory is still 249.6MB. Free memory was 216.7MB in the beginning and 195.8MB in the end (delta: 21.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 814.90ms. Allocated memory is still 249.6MB. Free memory was 194.7MB in the beginning and 172.7MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.56ms. Allocated memory is still 249.6MB. Free memory was 172.7MB in the beginning and 171.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1562, overapproximation of bitwiseAnd at line 1562. 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); [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=1073774593, argc=1073774593, argv={1073774596:1073774594}, argv={1073774596:1073774594}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_rand_predec_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() 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, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=1073774595, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1567] --data VAL [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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=1073774595] - UnprovableResult [Line: 1567]: 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 2, 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=20occurred 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, 15 NumberOfCodeBlocks, 15 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 23:28:02,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 7a16c33033d4262e1c6f61b3356aece15a1c700f0980b728c290e851ae7b2150 --- 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 23:28:05,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:28:05,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:28:05,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:28:05,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:28:05,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:28:05,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:28:05,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:28:05,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:28:05,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:28:05,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:28:05,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:28:05,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:28:05,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:28:05,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:28:05,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:28:05,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:28:05,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:28:05,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:28:05,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:28:05,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:28:05,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:28:05,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:28:05,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:28:05,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:28:05,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:28:05,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:28:05,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:28:05,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:28:05,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:28:05,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:28:05,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:28:05,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:28:05,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:28:05,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:28:05,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:28:05,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:28:05,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:28:05,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:28:05,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:28:05,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:28:05,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:28:05,925 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:28:05,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:28:05,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:28:05,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:28:05,929 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:28:05,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:28:05,930 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:28:05,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:28:05,930 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:28:05,931 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:28:05,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:28:05,933 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:28:05,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:28:05,934 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:28:05,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:28:05,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:28:05,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:28:05,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:28:05,936 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:28:05,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:28:05,936 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:28:05,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:28:05,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:28:05,937 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:28:05,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:28:05,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:28:05,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:28:05,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:28:05,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:28:05,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:28:05,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:28:05,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:28:05,940 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:28:05,941 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:28:05,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:28:05,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:28:05,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:28:05,942 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_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a16c33033d4262e1c6f61b3356aece15a1c700f0980b728c290e851ae7b2150 [2022-11-25 23:28:06,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:28:06,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:28:06,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:28:06,419 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:28:06,420 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:28:06,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_bad.i [2022-11-25 23:28:10,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:28:10,985 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:28:10,990 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_08_bad.i [2022-11-25 23:28:11,031 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data/94ad965b5/bda9411640674bf3b5e9e907b956213b/FLAG27e947dc0 [2022-11-25 23:28:11,062 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/data/94ad965b5/bda9411640674bf3b5e9e907b956213b [2022-11-25 23:28:11,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:28:11,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:28:11,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:28:11,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:28:11,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:28:11,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:28:11" (1/1) ... [2022-11-25 23:28:11,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732fa542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:11, skipping insertion in model container [2022-11-25 23:28:11,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:28:11" (1/1) ... [2022-11-25 23:28:11,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:28:11,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:28:11,578 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:28:12,146 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:28:12,153 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:12,157 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:12,162 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:12,168 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:12,201 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:28:12,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:28:12,218 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:28:12,239 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:28:12,286 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:28:12,288 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:12,289 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:28:12,291 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:12,292 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:28:12,298 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:28:12,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:28:12,482 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:28:12,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12 WrapperNode [2022-11-25 23:28:12,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:28:12,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:28:12,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:28:12,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:28:12,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,571 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2022-11-25 23:28:12,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:28:12,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:28:12,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:28:12,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:28:12,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:28:12,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:28:12,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:28:12,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:28:12,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (1/1) ... [2022-11-25 23:28:12,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:28:12,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:12,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:28:12,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:28:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:28:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:28:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:28:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:28:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:28:12,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:28:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-25 23:28:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-25 23:28:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:28:12,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:28:12,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:28:13,112 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:28:13,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:28:13,123 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:28:13,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:28:13 BoogieIcfgContainer [2022-11-25 23:28:13,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:28:13,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:28:13,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:28:13,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:28:13,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:28:11" (1/3) ... [2022-11-25 23:28:13,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0ca8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:28:13, skipping insertion in model container [2022-11-25 23:28:13,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:28:12" (2/3) ... [2022-11-25 23:28:13,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0ca8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:28:13, skipping insertion in model container [2022-11-25 23:28:13,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:28:13" (3/3) ... [2022-11-25 23:28:13,135 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_08_bad.i [2022-11-25 23:28:13,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:28:13,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:28:13,207 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:28:13,213 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;@254043b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:28:13,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:28:13,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 23:28:13,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 23:28:13,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:13,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:13,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:28:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:13,231 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2022-11-25 23:28:13,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:28:13,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127359691] [2022-11-25 23:28:13,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:13,249 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 23:28:13,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:28:13,255 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:13,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:28:13,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:28:13,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:28:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:13,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:28:13,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:28:13,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127359691] [2022-11-25 23:28:13,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127359691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:28:13,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:28:13,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:28:13,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63549736] [2022-11-25 23:28:13,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:28:13,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:28:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:28:13,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:28:13,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:28:13,601 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:28:13,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:28:13,639 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-11-25 23:28:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:28:13,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-25 23:28:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:28:13,649 INFO L225 Difference]: With dead ends: 47 [2022-11-25 23:28:13,650 INFO L226 Difference]: Without dead ends: 19 [2022-11-25 23:28:13,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:28:13,657 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:28:13,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:28:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-25 23:28:13,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-25 23:28:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:28:13,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-25 23:28:13,697 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2022-11-25 23:28:13,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:28:13,699 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-25 23:28:13,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:28:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-25 23:28:13,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:28:13,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:28:13,702 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:28:13,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:28:13,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:13,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:28:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:28:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2022-11-25 23:28:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:28:13,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742516311] [2022-11-25 23:28:13,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:13,918 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 23:28:13,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:28:13,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:13,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:28:14,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:28:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:28:14,096 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:28:14,097 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:28:14,099 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:28:14,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:28:14,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:14,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/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 23:28:14,316 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:28:14,321 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:28:14,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:28:14 BoogieIcfgContainer [2022-11-25 23:28:14,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:28:14,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:28:14,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:28:14,384 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:28:14,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:28:13" (3/4) ... [2022-11-25 23:28:14,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 23:28:14,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:28:14,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:28:14,505 INFO L158 Benchmark]: Toolchain (without parser) took 3438.14ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 50.4MB in the beginning and 56.7MB in the end (delta: -6.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,506 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:28:14,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1412.58ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 35.1MB in the end (delta: 15.1MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.16ms. Allocated memory is still 71.3MB. Free memory was 35.1MB in the beginning and 32.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,508 INFO L158 Benchmark]: Boogie Preprocessor took 67.42ms. Allocated memory is still 71.3MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,509 INFO L158 Benchmark]: RCFGBuilder took 482.81ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 29.9MB in the beginning and 48.6MB in the end (delta: -18.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,509 INFO L158 Benchmark]: TraceAbstraction took 1255.08ms. Allocated memory is still 86.0MB. Free memory was 48.2MB in the beginning and 36.2MB in the end (delta: 11.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,510 INFO L158 Benchmark]: Witness Printer took 121.37ms. Allocated memory is still 86.0MB. Free memory was 36.2MB in the beginning and 56.7MB in the end (delta: -20.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-11-25 23:28:14,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1412.58ms. Allocated memory is still 71.3MB. Free memory was 50.2MB in the beginning and 35.1MB in the end (delta: 15.1MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.16ms. Allocated memory is still 71.3MB. Free memory was 35.1MB in the beginning and 32.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.42ms. Allocated memory is still 71.3MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.81ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 29.9MB in the beginning and 48.6MB in the end (delta: -18.7MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1255.08ms. Allocated memory is still 86.0MB. Free memory was 48.2MB in the beginning and 36.2MB in the end (delta: 11.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 121.37ms. Allocated memory is still 86.0MB. Free memory was 36.2MB in the beginning and 56.7MB in the end (delta: -20.4MB). Peak memory consumption was 4.5MB. 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: 1567]: 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_rand_predec_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() 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, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] 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()=0, rand()=1, rand()=65536, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] RET staticReturnsTrue() VAL [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, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1567] --data VAL [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: 1567]: 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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, 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, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 23:28:14,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2130fd7-69af-4ac5-a846-7b9be997ea5e/bin/utaipan-ByfvJB40ur/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)