./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_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_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/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_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/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_e435646c-928d-43f1-9b24-b83b0c523ec7/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 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:19:36,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:19:36,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:19:36,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:19:36,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:19:36,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:19:36,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:19:36,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:19:36,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:19:36,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:19:36,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:19:36,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:19:36,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:19:36,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:19:36,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:19:36,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:19:36,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:19:36,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:19:36,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:19:36,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:19:36,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:19:36,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:19:36,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:19:36,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:19:36,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:19:36,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:19:36,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:19:36,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:19:36,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:19:36,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:19:36,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:19:36,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:19:36,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:19:36,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:19:36,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:19:36,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:19:36,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:19:36,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:19:36,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:19:36,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:19:36,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:19:36,168 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:19:36,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:19:36,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:19:36,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:19:36,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:19:36,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:19:36,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:19:36,210 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:19:36,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:19:36,210 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:19:36,210 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:19:36,211 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:19:36,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:19:36,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:19:36,211 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:19:36,211 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:19:36,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:19:36,212 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:19:36,212 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:19:36,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:19:36,214 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:19:36,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:19:36,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:19:36,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:19:36,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:19:36,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:19:36,215 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:19:36,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:19:36,216 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:19:36,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:19:36,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:19:36,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:19:36,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:36,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:19:36,218 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:19:36,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:19:36,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:19:36,219 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:19:36,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:19:36,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:19:36,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:19:36,220 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_e435646c-928d-43f1-9b24-b83b0c523ec7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 [2022-11-25 23:19:36,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:19:36,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:19:36,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:19:36,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:19:36,593 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:19:36,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2022-11-25 23:19:39,625 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:19:39,989 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:19:39,996 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2022-11-25 23:19:40,016 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data/9b1be6bb1/a7be21d45af14f1b8b46d720df265cd8/FLAG71ec41933 [2022-11-25 23:19:40,031 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data/9b1be6bb1/a7be21d45af14f1b8b46d720df265cd8 [2022-11-25 23:19:40,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:19:40,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:19:40,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:40,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:19:40,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:19:40,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:19:40" (1/1) ... [2022-11-25 23:19:40,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61333ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:40, skipping insertion in model container [2022-11-25 23:19:40,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:19:40" (1/1) ... [2022-11-25 23:19:40,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:19:40,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:19:40,504 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:19:40,926 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:19:40,933 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:40,936 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:40,949 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:40,950 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:40,993 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:19:40,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:41,010 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:19:41,042 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:19:41,105 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:19:41,107 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:41,108 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:41,110 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:41,111 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:41,116 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:19:41,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:41,266 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:19:41,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41 WrapperNode [2022-11-25 23:19:41,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:41,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:41,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:19:41,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:19:41,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,361 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-25 23:19:41,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:41,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:19:41,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:19:41,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:19:41,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,418 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:19:41,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:19:41,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:19:41,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:19:41,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (1/1) ... [2022-11-25 23:19:41,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:41,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:41,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:19:41,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:19:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:19:41,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:19:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:19:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:19:41,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:19:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:19:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:19:41,694 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:19:41,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:19:41,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:19:42,009 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:19:42,010 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:19:42,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:42 BoogieIcfgContainer [2022-11-25 23:19:42,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:19:42,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:19:42,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:19:42,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:19:42,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:19:40" (1/3) ... [2022-11-25 23:19:42,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be50be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:42, skipping insertion in model container [2022-11-25 23:19:42,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:41" (2/3) ... [2022-11-25 23:19:42,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be50be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:42, skipping insertion in model container [2022-11-25 23:19:42,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:42" (3/3) ... [2022-11-25 23:19:42,026 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2022-11-25 23:19:42,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:19:42,046 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:19:42,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:19:42,116 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;@18f90949, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:19:42,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:19:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:19:42,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:19:42,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:42,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:42,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-11-25 23:19:42,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:19:42,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876763316] [2022-11-25 23:19:42,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:42,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:19:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:19:42,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:19:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:19:42,462 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:19:42,464 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:19:42,465 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:19:42,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:19:42,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:19:42,476 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:19:42,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:19:42,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:19:42 BoogieIcfgContainer [2022-11-25 23:19:42,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:19:42,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:19:42,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:19:42,521 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:19:42,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:42" (3/4) ... [2022-11-25 23:19:42,525 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:19:42,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:19:42,529 INFO L158 Benchmark]: Toolchain (without parser) took 2492.92ms. Allocated memory is still 178.3MB. Free memory was 130.6MB in the beginning and 124.9MB in the end (delta: 5.7MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-25 23:19:42,529 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 144.7MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:42,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1228.30ms. Allocated memory is still 178.3MB. Free memory was 130.6MB in the beginning and 112.2MB in the end (delta: 18.4MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2022-11-25 23:19:42,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.86ms. Allocated memory is still 178.3MB. Free memory was 112.2MB in the beginning and 108.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:19:42,533 INFO L158 Benchmark]: Boogie Preprocessor took 60.84ms. Allocated memory is still 178.3MB. Free memory was 108.8MB in the beginning and 107.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:42,537 INFO L158 Benchmark]: RCFGBuilder took 587.63ms. Allocated memory is still 178.3MB. Free memory was 107.4MB in the beginning and 87.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:19:42,539 INFO L158 Benchmark]: TraceAbstraction took 501.48ms. Allocated memory is still 178.3MB. Free memory was 87.1MB in the beginning and 126.0MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:42,539 INFO L158 Benchmark]: Witness Printer took 7.23ms. Allocated memory is still 178.3MB. Free memory was 126.0MB in the beginning and 124.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:42,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 144.7MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1228.30ms. Allocated memory is still 178.3MB. Free memory was 130.6MB in the beginning and 112.2MB in the end (delta: 18.4MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.86ms. Allocated memory is still 178.3MB. Free memory was 112.2MB in the beginning and 108.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.84ms. Allocated memory is still 178.3MB. Free memory was 108.8MB in the beginning and 107.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 587.63ms. Allocated memory is still 178.3MB. Free memory was 107.4MB in the beginning and 87.1MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 501.48ms. Allocated memory is still 178.3MB. Free memory was 87.1MB in the beginning and 126.0MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.23ms. Allocated memory is still 178.3MB. Free memory was 126.0MB in the beginning and 124.9MB 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_03_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:19:42,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/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_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/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_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/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_e435646c-928d-43f1-9b24-b83b0c523ec7/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 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:19:45,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:19:45,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:19:45,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:19:45,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:19:45,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:19:45,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:19:45,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:19:45,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:19:45,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:19:45,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:19:45,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:19:45,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:19:45,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:19:45,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:19:45,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:19:45,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:19:45,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:19:45,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:19:45,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:19:45,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:19:45,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:19:45,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:19:45,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:19:45,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:19:45,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:19:45,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:19:45,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:19:45,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:19:45,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:19:45,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:19:45,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:19:45,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:19:45,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:19:45,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:19:45,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:19:45,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:19:45,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:19:45,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:19:45,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:19:45,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:19:45,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:19:45,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:19:45,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:19:45,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:19:45,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:19:45,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:19:45,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:19:45,316 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:19:45,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:19:45,316 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:19:45,316 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:19:45,316 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:19:45,317 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:19:45,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:19:45,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:19:45,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:19:45,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:19:45,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:19:45,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:19:45,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:19:45,319 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:19:45,319 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:19:45,319 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:19:45,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:19:45,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:19:45,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:19:45,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:19:45,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:19:45,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:19:45,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:45,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:19:45,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:19:45,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:19:45,322 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:19:45,322 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:19:45,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:19:45,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:19:45,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:19:45,323 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_e435646c-928d-43f1-9b24-b83b0c523ec7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 [2022-11-25 23:19:45,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:19:45,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:19:45,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:19:45,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:19:45,711 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:19:45,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2022-11-25 23:19:48,693 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:19:49,067 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:19:49,068 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2022-11-25 23:19:49,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data/881dacd93/91404e3739f8463ab7cc8df9384b9e5a/FLAGc3c4e3d2d [2022-11-25 23:19:49,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/data/881dacd93/91404e3739f8463ab7cc8df9384b9e5a [2022-11-25 23:19:49,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:19:49,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:19:49,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:49,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:19:49,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:19:49,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:19:49" (1/1) ... [2022-11-25 23:19:49,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d52968f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:49, skipping insertion in model container [2022-11-25 23:19:49,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:19:49" (1/1) ... [2022-11-25 23:19:49,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:19:49,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:19:49,685 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:19:50,194 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:19:50,200 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:50,203 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:50,206 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:50,207 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:50,231 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:19:50,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:50,245 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:19:50,264 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:19:50,318 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:19:50,320 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:50,321 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:19:50,323 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:50,327 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:19:50,331 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:19:50,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:19:50,516 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:19:50,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50 WrapperNode [2022-11-25 23:19:50,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:19:50,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:50,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:19:50,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:19:50,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,624 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-25 23:19:50,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:19:50,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:19:50,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:19:50,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:19:50,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:19:50,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:19:50,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:19:50,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:19:50,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (1/1) ... [2022-11-25 23:19:50,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:19:50,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:19:50,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:19:50,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:19:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:19:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:19:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:19:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:19:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:19:50,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:19:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:19:50,938 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:19:50,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:19:51,134 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:19:51,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:19:51,140 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:19:51,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:51 BoogieIcfgContainer [2022-11-25 23:19:51,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:19:51,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:19:51,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:19:51,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:19:51,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:19:49" (1/3) ... [2022-11-25 23:19:51,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f151b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:51, skipping insertion in model container [2022-11-25 23:19:51,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:19:50" (2/3) ... [2022-11-25 23:19:51,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f151b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:19:51, skipping insertion in model container [2022-11-25 23:19:51,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:51" (3/3) ... [2022-11-25 23:19:51,151 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2022-11-25 23:19:51,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:19:51,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:19:51,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:19:51,225 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;@4cff623b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:19:51,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:19:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:19:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:19:51,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:51,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:51,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:51,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-25 23:19:51,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:19:51,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74196404] [2022-11-25 23:19:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:51,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:19:51,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:19:51,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:19:51,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:19:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:19:51,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:19:51,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:19:51,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:19:51,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:19:51,469 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:19:51,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74196404] [2022-11-25 23:19:51,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74196404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:19:51,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:19:51,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:19:51,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455016652] [2022-11-25 23:19:51,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:19:51,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:19:51,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:19:51,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:19:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:19:51,526 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:19:51,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:19:51,554 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-25 23:19:51,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:19:51,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 23:19:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:19:51,562 INFO L225 Difference]: With dead ends: 38 [2022-11-25 23:19:51,563 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 23:19:51,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:19:51,570 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:19:51,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:19:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 23:19:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 23:19:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:19:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 23:19:51,613 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-25 23:19:51,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:19:51,614 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 23:19:51,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:19:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 23:19:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:19:51,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:19:51,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:19:51,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:51,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:19:51,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:19:51,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:19:51,832 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-25 23:19:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:19:51,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332491928] [2022-11-25 23:19:51,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:19:51,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:19:51,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:19:51,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:19:51,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:19:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:19:51,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:19:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:19:52,028 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:19:52,029 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:19:52,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:19:52,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:19:52,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:19:52,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:19:52,255 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:19:52,259 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:19:52,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:19:52 BoogieIcfgContainer [2022-11-25 23:19:52,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:19:52,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:19:52,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:19:52,294 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:19:52,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:19:51" (3/4) ... [2022-11-25 23:19:52,296 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 23:19:52,346 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:19:52,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:19:52,347 INFO L158 Benchmark]: Toolchain (without parser) took 3235.96ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 61.5MB in the beginning and 54.0MB in the end (delta: 7.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,348 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:19:52,348 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1402.14ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 37.3MB in the end (delta: 23.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.00ms. Allocated memory is still 86.0MB. Free memory was 37.3MB in the beginning and 58.7MB in the end (delta: -21.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,349 INFO L158 Benchmark]: Boogie Preprocessor took 39.21ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 56.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,350 INFO L158 Benchmark]: RCFGBuilder took 477.23ms. Allocated memory is still 86.0MB. Free memory was 56.6MB in the beginning and 43.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,350 INFO L158 Benchmark]: TraceAbstraction took 1148.26ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 42.8MB in the beginning and 56.1MB in the end (delta: -13.3MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,351 INFO L158 Benchmark]: Witness Printer took 53.36ms. Allocated memory is still 104.9MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:19:52,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1402.14ms. Allocated memory is still 86.0MB. Free memory was 61.2MB in the beginning and 37.3MB in the end (delta: 23.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.00ms. Allocated memory is still 86.0MB. Free memory was 37.3MB in the beginning and 58.7MB in the end (delta: -21.4MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.21ms. Allocated memory is still 86.0MB. Free memory was 58.7MB in the beginning and 56.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.23ms. Allocated memory is still 86.0MB. Free memory was 56.6MB in the beginning and 43.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1148.26ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 42.8MB in the beginning and 56.1MB in the end (delta: -13.3MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 53.36ms. Allocated memory is still 104.9MB. Free memory was 56.1MB in the beginning and 54.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_03_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=65536, rand()=1, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 23:19:52,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e435646c-928d-43f1-9b24-b83b0c523ec7/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)