./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9af24d4dceb13a252d9f9977aa1f9b3ffcff36a94533b8a56bc10288024744f9 --- 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 17:59:03,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:59:03,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:59:03,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:59:03,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:59:03,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:59:03,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:59:03,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:59:03,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:59:03,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:59:03,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:59:03,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:59:03,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:59:03,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:59:03,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:59:03,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:59:03,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:59:03,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:59:03,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:59:03,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:59:03,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:59:03,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:59:03,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:59:03,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:59:03,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:59:03,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:59:03,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:59:03,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:59:03,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:59:03,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:59:03,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:59:03,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:59:03,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:59:03,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:59:03,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:59:03,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:59:03,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:59:03,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:59:03,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:59:03,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:59:03,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:59:03,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:59:03,222 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:59:03,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:59:03,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:59:03,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:59:03,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:59:03,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:59:03,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:59:03,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:59:03,225 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:59:03,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:59:03,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:59:03,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:59:03,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:59:03,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:59:03,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:59:03,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:59:03,228 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:59:03,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:59:03,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:59:03,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:59:03,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:59:03,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:59:03,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:59:03,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:59:03,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:59:03,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:59:03,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:59:03,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:59:03,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:59:03,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:59:03,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:59:03,233 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:59:03,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:59:03,234 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9af24d4dceb13a252d9f9977aa1f9b3ffcff36a94533b8a56bc10288024744f9 [2022-11-25 17:59:03,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:59:03,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:59:03,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:59:03,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:59:03,602 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:59:03,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i [2022-11-25 17:59:06,592 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:59:06,951 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:59:06,951 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i [2022-11-25 17:59:06,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data/918bd48a8/7ad77b47596347a7854cebecdcd453f8/FLAG73e1b40b8 [2022-11-25 17:59:07,002 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data/918bd48a8/7ad77b47596347a7854cebecdcd453f8 [2022-11-25 17:59:07,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:59:07,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:59:07,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:07,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:59:07,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:59:07,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:07" (1/1) ... [2022-11-25 17:59:07,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de879ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:07, skipping insertion in model container [2022-11-25 17:59:07,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:07" (1/1) ... [2022-11-25 17:59:07,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:59:07,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:59:07,524 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:59:08,022 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:59:08,031 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:08,033 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:08,044 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:08,045 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:08,075 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:59:08,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:59:08,095 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:59:08,124 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:59:08,192 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:59:08,194 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:08,195 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:08,197 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:08,198 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:08,203 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:59:08,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:59:08,335 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:59:08,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08 WrapperNode [2022-11-25 17:59:08,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:08,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:59:08,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:59:08,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:59:08,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,434 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-25 17:59:08,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:59:08,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:59:08,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:59:08,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:59:08,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:59:08,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:59:08,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:59:08,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:59:08,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (1/1) ... [2022-11-25 17:59:08,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:59:08,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:59:08,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:59:08,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:59:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:59:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:59:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:59:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:59:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:59:08,567 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:59:08,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:59:08,811 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:59:08,813 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:59:09,006 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:59:09,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:59:09,012 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:59:09,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:09 BoogieIcfgContainer [2022-11-25 17:59:09,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:59:09,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:59:09,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:59:09,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:59:09,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:59:07" (1/3) ... [2022-11-25 17:59:09,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e360ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:09, skipping insertion in model container [2022-11-25 17:59:09,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:08" (2/3) ... [2022-11-25 17:59:09,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e360ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:09, skipping insertion in model container [2022-11-25 17:59:09,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:09" (3/3) ... [2022-11-25 17:59:09,047 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_22_bad.i [2022-11-25 17:59:09,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:59:09,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:59:09,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:59:09,152 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=PETRI_NET, 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;@1c082d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:59:09,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:59:09,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 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 17:59:09,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:59:09,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:59:09,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:09,168 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:59:09,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:09,175 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2022-11-25 17:59:09,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:09,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123566844] [2022-11-25 17:59:09,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:09,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:59:09,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:59:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:59:09,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:59:09,500 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:59:09,502 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:59:09,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:59:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:59:09,509 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:59:09,514 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:59:09,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:59:09 BoogieIcfgContainer [2022-11-25 17:59:09,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:59:09,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:59:09,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:59:09,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:59:09,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:09" (3/4) ... [2022-11-25 17:59:09,559 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:59:09,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:59:09,561 INFO L158 Benchmark]: Toolchain (without parser) took 2551.22ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 135.4MB in the beginning and 155.9MB in the end (delta: -20.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-25 17:59:09,561 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 99.2MB in the beginning and 99.1MB in the end (delta: 66.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:09,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1324.02ms. Allocated memory is still 169.9MB. Free memory was 135.4MB in the beginning and 83.9MB in the end (delta: 51.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-25 17:59:09,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.32ms. Allocated memory is still 169.9MB. Free memory was 83.9MB in the beginning and 81.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:09,563 INFO L158 Benchmark]: Boogie Preprocessor took 33.66ms. Allocated memory is still 169.9MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:09,564 INFO L158 Benchmark]: RCFGBuilder took 545.08ms. Allocated memory is still 169.9MB. Free memory was 79.7MB in the beginning and 65.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:59:09,565 INFO L158 Benchmark]: TraceAbstraction took 524.50ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 137.8MB in the beginning and 156.9MB in the end (delta: -19.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-11-25 17:59:09,565 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 205.5MB. Free memory was 156.9MB in the beginning and 155.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:09,569 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 130.0MB. Free memory was 99.2MB in the beginning and 99.1MB in the end (delta: 66.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1324.02ms. Allocated memory is still 169.9MB. Free memory was 135.4MB in the beginning and 83.9MB in the end (delta: 51.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.32ms. Allocated memory is still 169.9MB. Free memory was 83.9MB in the beginning and 81.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.66ms. Allocated memory is still 169.9MB. Free memory was 81.1MB in the beginning and 79.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.08ms. Allocated memory is still 169.9MB. Free memory was 79.7MB in the beginning and 65.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 524.50ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 137.8MB in the beginning and 156.9MB in the end (delta: -19.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 205.5MB. Free memory was 156.9MB in the beginning and 155.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1572]: 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); [L1548] int CWE191_Integer_Underflow__int_rand_sub_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, 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) [L1561] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483648:2147483650}, argv={2147483648:2147483650}, CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_sub_22_bad() [L1552] int data; [L1553] 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 VAL [CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, 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()=1, rand()=0, rand()=1, rand()=2147483647, 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)) [L1555] CWE191_Integer_Underflow__int_rand_sub_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_sub_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_sub_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=1, 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] [L1572] data - 1 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=1, 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: 1572]: 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: 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=23occurred 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, 12 NumberOfCodeBlocks, 12 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 17:59:09,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9af24d4dceb13a252d9f9977aa1f9b3ffcff36a94533b8a56bc10288024744f9 --- 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 17:59:11,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:59:11,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:59:11,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:59:11,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:59:11,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:59:11,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:59:11,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:59:11,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:59:11,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:59:11,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:59:11,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:59:11,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:59:11,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:59:11,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:59:11,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:59:11,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:59:11,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:59:11,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:59:11,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:59:11,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:59:11,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:59:11,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:59:11,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:59:12,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:59:12,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:59:12,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:59:12,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:59:12,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:59:12,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:59:12,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:59:12,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:59:12,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:59:12,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:59:12,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:59:12,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:59:12,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:59:12,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:59:12,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:59:12,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:59:12,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:59:12,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 17:59:12,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:59:12,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:59:12,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:59:12,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:59:12,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:59:12,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:59:12,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:59:12,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:59:12,065 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:59:12,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:59:12,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:59:12,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:59:12,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:59:12,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:59:12,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:59:12,067 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:59:12,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:59:12,067 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:59:12,067 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:59:12,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:59:12,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:59:12,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:59:12,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:59:12,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:59:12,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:59:12,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:59:12,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:59:12,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:59:12,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:59:12,070 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:59:12,070 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:59:12,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:59:12,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:59:12,070 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:59:12,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:59:12,071 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:59:12,071 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9af24d4dceb13a252d9f9977aa1f9b3ffcff36a94533b8a56bc10288024744f9 [2022-11-25 17:59:12,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:59:12,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:59:12,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:59:12,454 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:59:12,455 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:59:12,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i [2022-11-25 17:59:15,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:59:15,972 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:59:15,972 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_22_bad.i [2022-11-25 17:59:16,008 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data/7ef02e3bc/ccaab497a4924ab7916cbc7edbcc5af7/FLAG9e0f113bb [2022-11-25 17:59:16,033 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/data/7ef02e3bc/ccaab497a4924ab7916cbc7edbcc5af7 [2022-11-25 17:59:16,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:59:16,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:59:16,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:16,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:59:16,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:59:16,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:16" (1/1) ... [2022-11-25 17:59:16,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3d3d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:16, skipping insertion in model container [2022-11-25 17:59:16,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:16" (1/1) ... [2022-11-25 17:59:16,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:59:16,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:59:16,546 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:59:17,285 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:59:17,292 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:17,295 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:17,302 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:17,303 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:17,332 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:59:17,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:59:17,353 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:59:17,385 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:59:17,461 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:59:17,462 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:17,464 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:59:17,465 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:17,466 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:59:17,479 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:59:17,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:59:17,598 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:59:17,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17 WrapperNode [2022-11-25 17:59:17,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:59:17,600 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:59:17,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:59:17,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:59:17,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,657 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-25 17:59:17,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:59:17,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:59:17,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:59:17,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:59:17,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:59:17,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:59:17,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:59:17,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:59:17,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (1/1) ... [2022-11-25 17:59:17,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:59:17,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:59:17,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:59:17,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:59:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:59:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:59:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:59:17,927 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:59:17,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:59:18,076 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:59:18,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:59:18,083 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:59:18,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:18 BoogieIcfgContainer [2022-11-25 17:59:18,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:59:18,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:59:18,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:59:18,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:59:18,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:59:16" (1/3) ... [2022-11-25 17:59:18,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0106ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:18, skipping insertion in model container [2022-11-25 17:59:18,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:17" (2/3) ... [2022-11-25 17:59:18,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0106ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:59:18, skipping insertion in model container [2022-11-25 17:59:18,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:18" (3/3) ... [2022-11-25 17:59:18,094 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_22_bad.i [2022-11-25 17:59:18,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:59:18,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:59:18,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:59:18,210 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=PETRI_NET, 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;@79dbcfdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:59:18,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:59:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 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 17:59:18,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:59:18,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:59:18,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:18,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:59:18,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:18,234 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2022-11-25 17:59:18,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:59:18,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208163456] [2022-11-25 17:59:18,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:18,253 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 17:59:18,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:59:18,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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 17:59:18,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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 17:59:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:59:18,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:59:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:59:18,528 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:59:18,530 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:59:18,531 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:59:18,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:59:18,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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 17:59:18,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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 17:59:18,751 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:59:18,756 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:59:18,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:59:18 BoogieIcfgContainer [2022-11-25 17:59:18,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:59:18,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:59:18,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:59:18,785 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:59:18,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:59:18" (3/4) ... [2022-11-25 17:59:18,788 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:59:18,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:59:18,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:59:18,838 INFO L158 Benchmark]: Toolchain (without parser) took 2799.20ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 63.8MB in the beginning and 64.5MB in the end (delta: -669.8kB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-11-25 17:59:18,839 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:18,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1555.37ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 63.6MB in the beginning and 70.5MB in the end (delta: -6.9MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:18,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.42ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 67.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:59:18,841 INFO L158 Benchmark]: Boogie Preprocessor took 32.88ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:18,841 INFO L158 Benchmark]: RCFGBuilder took 393.69ms. Allocated memory is still 109.1MB. Free memory was 65.3MB in the beginning and 52.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:59:18,842 INFO L158 Benchmark]: TraceAbstraction took 697.02ms. Allocated memory is still 109.1MB. Free memory was 51.7MB in the beginning and 66.6MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:59:18,843 INFO L158 Benchmark]: Witness Printer took 52.38ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 64.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:59:18,846 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 86.0MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1555.37ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 63.6MB in the beginning and 70.5MB in the end (delta: -6.9MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.42ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 67.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.88ms. Allocated memory is still 109.1MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.69ms. Allocated memory is still 109.1MB. Free memory was 65.3MB in the beginning and 52.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 697.02ms. Allocated memory is still 109.1MB. Free memory was 51.7MB in the beginning and 66.6MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.38ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 64.5MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 1572]: 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); [L1548] int CWE191_Integer_Underflow__int_rand_sub_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, 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) [L1561] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_sub_22_bad() [L1552] int data; [L1553] 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 VAL [CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=0, 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()=65535, rand()=0, rand()=32767, 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)) [L1555] CWE191_Integer_Underflow__int_rand_sub_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_sub_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_sub_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=1, 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] [L1572] data - 1 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_sub_22_badGlobal=1, 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: 1572]: 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: 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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! [2022-11-25 17:59:18,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b53b24c-211b-4365-838c-59bcbe185238/bin/uautomizer-ZsLfNo2U6R/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)