./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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_81848fe1-bc4c-42cb-b7cf-c38351555c19/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 68930d750a85cd6de42e1e9f2c43ae52b5b206e831fe8a4256a1d6e3e98fef9d --- 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 [2022-11-26 00:03:08,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:08,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:08,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:08,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:08,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:08,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:08,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:08,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:08,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:08,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:08,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:08,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:08,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:08,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:08,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:08,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:08,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:08,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:08,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:08,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:08,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:08,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:08,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:08,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:08,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:08,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:08,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:08,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:08,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:08,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:08,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:08,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:08,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:08,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:08,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:08,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:08,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:08,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:08,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:08,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:08,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:03:08,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:08,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:08,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:08,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:08,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:08,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:08,592 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:08,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:08,592 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:08,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:03:08,594 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:08,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:08,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:03:08,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:03:08,595 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:08,595 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:03:08,595 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:03:08,595 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:03:08,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:08,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:03:08,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:03:08,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:08,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:08,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:08,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:08,597 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:03:08,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:08,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:08,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:08,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:08,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:08,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:08,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:08,599 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:03:08,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:08,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:08,600 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:03:08,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:03:08,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:08,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:08,601 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_81848fe1-bc4c-42cb-b7cf-c38351555c19/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68930d750a85cd6de42e1e9f2c43ae52b5b206e831fe8a4256a1d6e3e98fef9d [2022-11-26 00:03:08,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:08,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:08,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:08,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:08,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:08,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i [2022-11-26 00:03:11,981 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:12,419 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:12,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i [2022-11-26 00:03:12,446 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data/29bb221e7/19683ea1216e491c8650cb76d80b958e/FLAG88a68bbf0 [2022-11-26 00:03:12,461 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data/29bb221e7/19683ea1216e491c8650cb76d80b958e [2022-11-26 00:03:12,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:12,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:12,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:12,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:12,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:12,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559943ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12, skipping insertion in model container [2022-11-26 00:03:12,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:12,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:12,912 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:03:13,459 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:03:13,466 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:13,468 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:13,471 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:13,472 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:13,505 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:03:13,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:13,517 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:13,539 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:03:13,594 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:03:13,610 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:13,611 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:13,613 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:13,614 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:13,620 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:03:13,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:13,784 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:13,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13 WrapperNode [2022-11-26 00:03:13,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:13,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:13,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:13,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:13,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,920 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-26 00:03:13,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:13,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:13,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:13,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:13,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:13,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:13,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:13,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:13,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (1/1) ... [2022-11-26 00:03:13,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:14,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:14,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:03:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:03:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:03:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:03:14,247 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:14,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:14,407 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:14,552 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:14,553 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:03:14,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:14 BoogieIcfgContainer [2022-11-26 00:03:14,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:14,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:14,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:14,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:14,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:12" (1/3) ... [2022-11-26 00:03:14,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59725c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:14, skipping insertion in model container [2022-11-26 00:03:14,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:13" (2/3) ... [2022-11-26 00:03:14,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59725c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:14, skipping insertion in model container [2022-11-26 00:03:14,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:14" (3/3) ... [2022-11-26 00:03:14,572 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_41_bad.i [2022-11-26 00:03:14,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:14,598 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:03:14,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:14,646 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;@cbdf81e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:14,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:03:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:03:14,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:03:14,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:14,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:03:14,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:03:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:14,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2095058450, now seen corresponding path program 1 times [2022-11-26 00:03:14,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:14,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136452639] [2022-11-26 00:03:14,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:14,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:03:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:14,951 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:03:14,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:03:14,953 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:03:14,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:03:14,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:03:14,960 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:03:14,965 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:03:14,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:14 BoogieIcfgContainer [2022-11-26 00:03:14,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:03:14,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:03:14,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:03:14,994 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:03:14,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:14" (3/4) ... [2022-11-26 00:03:15,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:03:15,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:03:15,002 INFO L158 Benchmark]: Toolchain (without parser) took 2536.88ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 126.3MB in the beginning and 128.3MB in the end (delta: -2.0MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2022-11-26 00:03:15,003 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:15,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1318.99ms. Allocated memory is still 163.6MB. Free memory was 126.3MB in the beginning and 63.6MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-26 00:03:15,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.02ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 63.6MB in the beginning and 172.3MB in the end (delta: -108.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-26 00:03:15,010 INFO L158 Benchmark]: Boogie Preprocessor took 51.01ms. Allocated memory is still 205.5MB. Free memory was 172.3MB in the beginning and 171.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:15,010 INFO L158 Benchmark]: RCFGBuilder took 583.68ms. Allocated memory is still 205.5MB. Free memory was 171.3MB in the beginning and 151.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 00:03:15,012 INFO L158 Benchmark]: TraceAbstraction took 432.98ms. Allocated memory is still 205.5MB. Free memory was 151.3MB in the beginning and 128.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:15,012 INFO L158 Benchmark]: Witness Printer took 6.96ms. Allocated memory is still 205.5MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:15,020 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1318.99ms. Allocated memory is still 163.6MB. Free memory was 126.3MB in the beginning and 63.6MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.02ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 63.6MB in the beginning and 172.3MB in the end (delta: -108.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.01ms. Allocated memory is still 205.5MB. Free memory was 172.3MB in the beginning and 171.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 583.68ms. Allocated memory is still 205.5MB. Free memory was 171.3MB in the beginning and 151.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 432.98ms. Allocated memory is still 205.5MB. Free memory was 151.3MB in the beginning and 128.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.96ms. Allocated memory is still 205.5MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1560, overapproximation of bitwiseAnd at line 1560. 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); [L1566] 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) [L1566] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL badSink(data) [L1551] --data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:03:15,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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_81848fe1-bc4c-42cb-b7cf-c38351555c19/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 68930d750a85cd6de42e1e9f2c43ae52b5b206e831fe8a4256a1d6e3e98fef9d --- 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 [2022-11-26 00:03:17,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:17,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:17,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:17,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:17,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:17,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:17,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:17,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:17,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:17,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:17,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:17,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:17,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:17,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:17,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:17,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:17,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:17,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:17,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:17,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:17,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:17,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:17,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:17,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:17,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:17,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:17,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:17,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:17,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:17,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:17,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:17,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:17,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:17,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:17,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:17,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:17,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:17,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:17,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:17,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:17,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:03:17,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:17,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:17,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:17,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:17,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:17,676 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:17,676 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:17,676 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:17,676 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:17,677 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:17,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:17,678 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:17,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:17,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:03:17,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:17,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:17,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:17,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:17,680 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:03:17,680 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:03:17,681 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:03:17,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:03:17,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:17,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:17,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:17,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:17,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:03:17,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:17,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:17,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:17,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:17,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:17,683 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:03:17,684 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:03:17,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:17,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:17,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:03:17,684 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_81848fe1-bc4c-42cb-b7cf-c38351555c19/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68930d750a85cd6de42e1e9f2c43ae52b5b206e831fe8a4256a1d6e3e98fef9d [2022-11-26 00:03:18,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:18,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:18,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:18,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:18,096 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:18,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i [2022-11-26 00:03:21,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:21,683 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:21,683 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_bad.i [2022-11-26 00:03:21,718 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data/38a2e2a41/96dda21192274331943e1b6b9cbf9837/FLAGe463c6c38 [2022-11-26 00:03:21,742 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/data/38a2e2a41/96dda21192274331943e1b6b9cbf9837 [2022-11-26 00:03:21,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:21,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:21,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:21,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:21,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:21,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:21" (1/1) ... [2022-11-26 00:03:21,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f3e7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:21, skipping insertion in model container [2022-11-26 00:03:21,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:21" (1/1) ... [2022-11-26 00:03:21,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:21,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:22,310 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:03:23,038 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:03:23,044 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:23,047 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:23,055 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:23,056 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:23,092 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:03:23,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:23,116 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:23,147 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:03:23,230 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:03:23,231 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:23,233 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:03:23,235 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:23,236 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:03:23,241 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:03:23,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:23,399 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:23,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23 WrapperNode [2022-11-26 00:03:23,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:23,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:23,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:23,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:23,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,454 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-26 00:03:23,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:23,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:23,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:23,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:23,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:23,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:23,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:23,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:23,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (1/1) ... [2022-11-26 00:03:23,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:23,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:23,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:23,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:03:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:03:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:03:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:03:23,744 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:23,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:23,944 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:23,950 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:23,951 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:03:23,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:23 BoogieIcfgContainer [2022-11-26 00:03:23,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:23,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:23,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:23,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:23,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:21" (1/3) ... [2022-11-26 00:03:23,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efeb444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:23, skipping insertion in model container [2022-11-26 00:03:23,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:23" (2/3) ... [2022-11-26 00:03:23,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efeb444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:23, skipping insertion in model container [2022-11-26 00:03:23,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:23" (3/3) ... [2022-11-26 00:03:23,963 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_41_bad.i [2022-11-26 00:03:23,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:23,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:03:24,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:24,037 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;@33cee0d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:24,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:03:24,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:03:24,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:03:24,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:24,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:24,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:03:24,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-11-26 00:03:24,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:03:24,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016585801] [2022-11-26 00:03:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:24,073 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 [2022-11-26 00:03:24,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:03:24,079 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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) [2022-11-26 00:03:24,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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 [2022-11-26 00:03:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:24,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:03:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:24,322 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:03:24,325 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:03:24,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:03:24,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:03:24,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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 [2022-11-26 00:03:24,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/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 [2022-11-26 00:03:24,554 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:03:24,560 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:03:24,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:24 BoogieIcfgContainer [2022-11-26 00:03:24,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:03:24,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:03:24,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:03:24,616 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:03:24,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:23" (3/4) ... [2022-11-26 00:03:24,619 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:03:24,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:03:24,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:03:24,685 INFO L158 Benchmark]: Toolchain (without parser) took 2935.88ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.7MB in the beginning and 45.0MB in the end (delta: -9.3MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,685 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:24,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1645.42ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.5MB in the beginning and 57.3MB in the end (delta: -21.8MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.94ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 54.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,687 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 94.4MB. Free memory was 54.0MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,688 INFO L158 Benchmark]: RCFGBuilder took 464.35ms. Allocated memory is still 94.4MB. Free memory was 51.9MB in the beginning and 64.4MB in the end (delta: -12.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,688 INFO L158 Benchmark]: TraceAbstraction took 659.59ms. Allocated memory is still 94.4MB. Free memory was 63.4MB in the beginning and 47.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,689 INFO L158 Benchmark]: Witness Printer took 68.28ms. Allocated memory is still 94.4MB. Free memory was 47.6MB in the beginning and 45.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:24,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1645.42ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.5MB in the beginning and 57.3MB in the end (delta: -21.8MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.94ms. Allocated memory is still 94.4MB. Free memory was 56.8MB in the beginning and 54.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 94.4MB. Free memory was 54.0MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.35ms. Allocated memory is still 94.4MB. Free memory was 51.9MB in the beginning and 64.4MB in the end (delta: -12.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 659.59ms. Allocated memory is still 94.4MB. Free memory was 63.4MB in the beginning and 47.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 68.28ms. Allocated memory is still 94.4MB. Free memory was 47.6MB in the beginning and 45.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1551]: 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] [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] 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()=32767, rand()=1, rand()=32767, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL badSink(data) [L1551] --data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:03:24,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81848fe1-bc4c-42cb-b7cf-c38351555c19/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)