./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_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_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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_3ad6af5e-7484-4d7a-9076-dcc632c00799/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- 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 00:47:47,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:47:47,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:47:47,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:47:47,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:47:47,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:47:47,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:47:47,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:47:47,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:47:47,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:47:47,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:47:47,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:47:47,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:47:47,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:47:47,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:47:47,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:47:47,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:47:47,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:47:47,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:47:47,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:47:47,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:47:47,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:47:47,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:47:47,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:47:47,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:47:47,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:47:47,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:47:47,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:47:47,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:47:47,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:47:47,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:47:47,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:47:47,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:47:47,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:47:47,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:47:47,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:47:47,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:47:47,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:47:47,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:47:47,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:47:47,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:47:47,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:47:47,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:47:47,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:47:47,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:47:47,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:47:47,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:47:47,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:47:47,854 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:47:47,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:47:47,854 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:47:47,854 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:47:47,855 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:47:47,855 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:47:47,856 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:47:47,856 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:47:47,856 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:47:47,856 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:47:47,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:47:47,857 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:47:47,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:47:47,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:47:47,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:47:47,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:47:47,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:47:47,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:47:47,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:47:47,859 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:47:47,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:47:47,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:47:47,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:47:47,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:47:47,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:47:47,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:47:47,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:47:47,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:47:47,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:47:47,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:47:47,863 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:47:47,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:47:47,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:47:47,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:47:47,864 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_3ad6af5e-7484-4d7a-9076-dcc632c00799/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2022-11-26 00:47:48,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:47:48,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:47:48,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:47:48,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:47:48,187 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:47:48,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-26 00:47:51,689 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:47:52,184 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:47:52,185 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-26 00:47:52,216 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data/72ba55aa7/f6b401d862eb4c03a1526d64436e40a7/FLAG2d0fe6b97 [2022-11-26 00:47:52,242 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data/72ba55aa7/f6b401d862eb4c03a1526d64436e40a7 [2022-11-26 00:47:52,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:47:52,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:47:52,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:47:52,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:47:52,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:47:52,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:47:52" (1/1) ... [2022-11-26 00:47:52,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d9c3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:52, skipping insertion in model container [2022-11-26 00:47:52,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:47:52" (1/1) ... [2022-11-26 00:47:52,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:47:52,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:47:52,840 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:47:53,442 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:47:53,450 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:47:53,458 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:47:53,469 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:47:53,471 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:47:53,525 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:47:53,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:47:53,548 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:47:53,590 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:47:53,666 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:47:53,669 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:47:53,670 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:47:53,673 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:47:53,674 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:47:53,681 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:47:53,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:47:53,948 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:47:53,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53 WrapperNode [2022-11-26 00:47:53,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:47:53,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:47:53,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:47:53,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:47:53,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:53,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,030 INFO L138 Inliner]: procedures = 499, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-11-26 00:47:54,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:47:54,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:47:54,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:47:54,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:47:54,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,078 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:47:54,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:47:54,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:47:54,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:47:54,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (1/1) ... [2022-11-26 00:47:54,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:47:54,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:47:54,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:47:54,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:47:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:47:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:47:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:47:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:47:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:47:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:47:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:47:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:47:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:47:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:47:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:47:54,393 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:47:54,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:47:54,740 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:47:54,926 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:47:54,934 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:47:54,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:47:54 BoogieIcfgContainer [2022-11-26 00:47:54,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:47:54,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:47:54,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:47:54,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:47:54,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:47:52" (1/3) ... [2022-11-26 00:47:54,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb4e467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:47:54, skipping insertion in model container [2022-11-26 00:47:54,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:47:53" (2/3) ... [2022-11-26 00:47:54,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb4e467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:47:54, skipping insertion in model container [2022-11-26 00:47:54,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:47:54" (3/3) ... [2022-11-26 00:47:54,955 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-26 00:47:54,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:47:54,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:47:55,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:47:55,080 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;@1b0aea92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:47:55,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:47:55,086 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 00:47:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:47:55,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:55,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:47:55,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:47:55,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:55,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2064490869, now seen corresponding path program 1 times [2022-11-26 00:47:55,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:55,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797947927] [2022-11-26 00:47:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:55,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:47:55,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:47:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:47:55,625 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:47:55,628 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:47:55,630 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:47:55,632 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:47:55,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:47:55,640 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:47:55,646 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:47:55,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:47:55 BoogieIcfgContainer [2022-11-26 00:47:55,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:47:55,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:47:55,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:47:55,679 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:47:55,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:47:54" (3/4) ... [2022-11-26 00:47:55,684 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:47:55,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:47:55,688 INFO L158 Benchmark]: Toolchain (without parser) took 3439.18ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 97.2MB in the beginning and 155.3MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:47:55,689 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 144.7MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:47:55,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1697.60ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 96.9MB in the beginning and 139.3MB in the end (delta: -42.5MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2022-11-26 00:47:55,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.37ms. Allocated memory is still 199.2MB. Free memory was 139.3MB in the beginning and 136.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:47:55,691 INFO L158 Benchmark]: Boogie Preprocessor took 67.49ms. Allocated memory is still 199.2MB. Free memory was 136.3MB in the beginning and 134.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:47:55,692 INFO L158 Benchmark]: RCFGBuilder took 838.32ms. Allocated memory is still 199.2MB. Free memory was 134.3MB in the beginning and 113.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 00:47:55,692 INFO L158 Benchmark]: TraceAbstraction took 736.47ms. Allocated memory is still 199.2MB. Free memory was 112.2MB in the beginning and 156.3MB in the end (delta: -44.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-26 00:47:55,693 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 199.2MB. Free memory was 156.3MB in the beginning and 155.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:47:55,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 144.7MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1697.60ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 96.9MB in the beginning and 139.3MB in the end (delta: -42.5MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.37ms. Allocated memory is still 199.2MB. Free memory was 139.3MB in the beginning and 136.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.49ms. Allocated memory is still 199.2MB. Free memory was 136.3MB in the beginning and 134.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 838.32ms. Allocated memory is still 199.2MB. Free memory was 134.3MB in the beginning and 113.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 736.47ms. Allocated memory is still 199.2MB. Free memory was 112.2MB in the beginning and 156.3MB in the end (delta: -44.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 199.2MB. Free memory was 156.3MB in the beginning and 155.3MB 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1556, overapproximation of bitwiseAnd at line 1556. 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); [L1571] 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) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=3221225473, argc=3221225473, argv={3221225476:3221225474}, argv={3221225476:3221225474}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [data=-2147483648, data=-2147483648, data={5:0}, dataPtr1={5:0}, dataPtr2={5:0}, 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: 1562]: 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: 0.6s, 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, 0.2s 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 00:47:55,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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_3ad6af5e-7484-4d7a-9076-dcc632c00799/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 e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 --- 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 00:47:58,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:47:58,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:47:58,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:47:58,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:47:58,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:47:58,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:47:58,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:47:58,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:47:58,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:47:58,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:47:58,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:47:58,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:47:58,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:47:58,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:47:58,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:47:58,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:47:58,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:47:58,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:47:58,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:47:58,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:47:58,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:47:58,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:47:58,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:47:58,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:47:58,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:47:58,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:47:58,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:47:58,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:47:58,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:47:58,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:47:58,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:47:58,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:47:58,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:47:58,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:47:58,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:47:58,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:47:58,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:47:58,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:47:58,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:47:58,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:47:58,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:47:58,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:47:58,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:47:58,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:47:58,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:47:58,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:47:58,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:47:58,901 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:47:58,902 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:47:58,902 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:47:58,902 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:47:58,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:47:58,903 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:47:58,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:47:58,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:47:58,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:47:58,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:47:58,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:47:58,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:47:58,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:47:58,905 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:47:58,905 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:47:58,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:47:58,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:47:58,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:47:58,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:47:58,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:47:58,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:47:58,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:47:58,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:47:58,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:47:58,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:47:58,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:47:58,910 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:47:58,911 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:47:58,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:47:58,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:47:58,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:47:58,912 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_3ad6af5e-7484-4d7a-9076-dcc632c00799/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1b982b22ed963753cb1a73ecbcc65696381bbcc4d686ab5b2d43604a7707490 [2022-11-26 00:47:59,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:47:59,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:47:59,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:47:59,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:47:59,508 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:47:59,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-26 00:48:03,331 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:48:03,867 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:48:03,870 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-26 00:48:03,903 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data/d1b1686a7/703d1516080a47c180d59a0e036920c1/FLAGcfece43cc [2022-11-26 00:48:03,925 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/data/d1b1686a7/703d1516080a47c180d59a0e036920c1 [2022-11-26 00:48:03,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:48:03,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:48:03,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:48:03,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:48:03,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:48:03,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:48:03" (1/1) ... [2022-11-26 00:48:03,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8a318e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:03, skipping insertion in model container [2022-11-26 00:48:03,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:48:03" (1/1) ... [2022-11-26 00:48:03,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:48:04,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:48:04,693 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:48:05,385 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:48:05,393 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:48:05,395 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:48:05,399 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:48:05,400 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:48:05,436 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:48:05,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:48:05,489 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:48:05,515 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:48:05,637 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:48:05,649 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:48:05,650 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:48:05,653 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:48:05,654 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:48:05,661 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:48:05,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:48:05,869 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:48:05,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05 WrapperNode [2022-11-26 00:48:05,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:48:05,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:48:05,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:48:05,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:48:05,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:05,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,010 INFO L138 Inliner]: procedures = 504, calls = 60, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-11-26 00:48:06,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:48:06,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:48:06,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:48:06,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:48:06,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:48:06,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:48:06,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:48:06,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:48:06,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (1/1) ... [2022-11-26 00:48:06,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:48:06,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:48:06,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:48:06,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:48:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:48:06,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:48:06,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:48:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:48:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:48:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:48:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:48:06,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:48:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:48:06,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:48:06,226 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:48:06,540 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:48:06,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:48:06,847 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:48:06,854 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:48:06,854 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:48:06,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:48:06 BoogieIcfgContainer [2022-11-26 00:48:06,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:48:06,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:48:06,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:48:06,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:48:06,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:48:03" (1/3) ... [2022-11-26 00:48:06,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5bece4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:48:06, skipping insertion in model container [2022-11-26 00:48:06,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:05" (2/3) ... [2022-11-26 00:48:06,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c5bece4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:48:06, skipping insertion in model container [2022-11-26 00:48:06,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:48:06" (3/3) ... [2022-11-26 00:48:06,873 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_32_bad.i [2022-11-26 00:48:06,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:48:06,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:48:06,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:48:06,977 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;@682cf494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:48:06,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:48:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:48:06,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:48:06,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:06,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:06,993 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:48:06,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:07,000 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-11-26 00:48:07,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:48:07,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025969627] [2022-11-26 00:48:07,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:07,016 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 00:48:07,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:48:07,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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 00:48:07,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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 00:48:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:48:07,233 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:48:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:48:07,339 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:48:07,342 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:48:07,343 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:48:07,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:48:07,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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 00:48:07,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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 00:48:07,563 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:48:07,569 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:48:07,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:48:07 BoogieIcfgContainer [2022-11-26 00:48:07,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:48:07,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:48:07,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:48:07,612 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:48:07,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:48:06" (3/4) ... [2022-11-26 00:48:07,615 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:48:07,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:48:07,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:48:07,694 INFO L158 Benchmark]: Toolchain (without parser) took 3763.12ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 60.8MB in the beginning and 57.1MB in the end (delta: 3.7MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,695 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 86.0MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:48:07,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1934.23ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 60.6MB in the beginning and 65.7MB in the end (delta: -5.1MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.71ms. Allocated memory is still 109.1MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,697 INFO L158 Benchmark]: Boogie Preprocessor took 97.77ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,697 INFO L158 Benchmark]: RCFGBuilder took 743.27ms. Allocated memory is still 109.1MB. Free memory was 60.4MB in the beginning and 78.4MB in the end (delta: -18.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,698 INFO L158 Benchmark]: TraceAbstraction took 750.13ms. Allocated memory is still 109.1MB. Free memory was 77.5MB in the beginning and 59.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,699 INFO L158 Benchmark]: Witness Printer took 81.82ms. Allocated memory is still 109.1MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:48:07,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 86.0MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1934.23ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 60.6MB in the beginning and 65.7MB in the end (delta: -5.1MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.71ms. Allocated memory is still 109.1MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.77ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 743.27ms. Allocated memory is still 109.1MB. Free memory was 60.4MB in the beginning and 78.4MB in the end (delta: -18.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 750.13ms. Allocated memory is still 109.1MB. Free memory was 77.5MB in the beginning and 59.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 81.82ms. Allocated memory is still 109.1MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). 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: 1562]: 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] [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, data={5:0}, dataPtr1={5:0}, dataPtr2={5:0}, 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] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] *dataPtr1 = data [L1560] EXPR \read(*dataPtr2) [L1560] int data = *dataPtr2; [L1562] --data VAL [data=-2147483648, data={5:0}, data=-2147483648, dataPtr1={5:0}, dataPtr2={5:0}, 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: 1562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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 00:48:07,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ad6af5e-7484-4d7a-9076-dcc632c00799/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)