./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8 --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 05adc65923fd88a9eb67104c671858c9d88a49564df6a8de4a7d0f9baca1a937 --- 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-2329fc7 [2022-12-13 20:28:06,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:28:06,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:28:07,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:28:07,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:28:07,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:28:07,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:28:07,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:28:07,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:28:07,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:28:07,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:28:07,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:28:07,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:28:07,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:28:07,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:28:07,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:28:07,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:28:07,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:28:07,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:28:07,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:28:07,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:28:07,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:28:07,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:28:07,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:28:07,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:28:07,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:28:07,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:28:07,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:28:07,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:28:07,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:28:07,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:28:07,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:28:07,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:28:07,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:28:07,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:28:07,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:28:07,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:28:07,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:28:07,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:28:07,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:28:07,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:28:07,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:28:07,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:28:07,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:28:07,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:28:07,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:28:07,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:28:07,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:28:07,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:28:07,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:28:07,056 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:28:07,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:28:07,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:28:07,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:28:07,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:28:07,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:28:07,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:28:07,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:28:07,058 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:28:07,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:28:07,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:28:07,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:28:07,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:28:07,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:28:07,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:28:07,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:28:07,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:28:07,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:28:07,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:28:07,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:28:07,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:28:07,060 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:28:07,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:28:07,060 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:28:07,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:28:07,060 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:28:07,060 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_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05adc65923fd88a9eb67104c671858c9d88a49564df6a8de4a7d0f9baca1a937 [2022-12-13 20:28:07,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:28:07,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:28:07,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:28:07,248 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:28:07,248 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:28:07,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i [2022-12-13 20:28:09,864 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:28:10,133 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:28:10,133 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i [2022-12-13 20:28:10,151 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data/d7e585767/e93edf0b566a4c6e91c1f610b1b3416d/FLAGf6324cfc4 [2022-12-13 20:28:10,165 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data/d7e585767/e93edf0b566a4c6e91c1f610b1b3416d [2022-12-13 20:28:10,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:28:10,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:28:10,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:28:10,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:28:10,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:28:10,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:28:10" (1/1) ... [2022-12-13 20:28:10,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18105593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:10, skipping insertion in model container [2022-12-13 20:28:10,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:28:10" (1/1) ... [2022-12-13 20:28:10,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:28:10,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:28:10,555 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:28:10,853 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:28:10,857 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:10,858 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:10,865 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:10,866 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:10,884 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:28:10,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:28:10,893 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:28:10,906 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:28:10,940 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:28:10,941 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:10,942 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:10,944 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:10,944 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:10,948 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:28:10,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:28:11,028 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:28:11,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11 WrapperNode [2022-12-13 20:28:11,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:28:11,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:28:11,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:28:11,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:28:11,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,065 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-13 20:28:11,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:28:11,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:28:11,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:28:11,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:28:11,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,081 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:28:11,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:28:11,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:28:11,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:28:11,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (1/1) ... [2022-12-13 20:28:11,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:28:11,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:28:11,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:28:11,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:28:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:28:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:28:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:28:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:28:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:28:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:28:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:28:11,245 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:28:11,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:28:11,365 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:28:11,371 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:28:11,371 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:28:11,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:11 BoogieIcfgContainer [2022-12-13 20:28:11,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:28:11,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:28:11,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:28:11,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:28:11,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:28:10" (1/3) ... [2022-12-13 20:28:11,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634a117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:28:11, skipping insertion in model container [2022-12-13 20:28:11,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:11" (2/3) ... [2022-12-13 20:28:11,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634a117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:28:11, skipping insertion in model container [2022-12-13 20:28:11,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:11" (3/3) ... [2022-12-13 20:28:11,380 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_01_bad.i [2022-12-13 20:28:11,394 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:28:11,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:28:11,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:28:11,435 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;@51f26775, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:28:11,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:28:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:28:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:28:11,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:28:11,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:11,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:28:11,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:11,449 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-12-13 20:28:11,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:28:11,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930009801] [2022-12-13 20:28:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:11,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:28:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:28:11,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:28:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:28:11,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:28:11,652 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:28:11,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:28:11,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:28:11,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:28:11,658 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:28:11,662 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:28:11,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:28:11 BoogieIcfgContainer [2022-12-13 20:28:11,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:28:11,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:28:11,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:28:11,679 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:28:11,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:11" (3/4) ... [2022-12-13 20:28:11,681 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:28:11,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:28:11,682 INFO L158 Benchmark]: Toolchain (without parser) took 1512.84ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 64.5MB in the beginning and 79.0MB in the end (delta: -14.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-12-13 20:28:11,683 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:28:11,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 857.55ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 64.2MB in the beginning and 71.8MB in the end (delta: -7.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-12-13 20:28:11,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.58ms. Allocated memory is still 146.8MB. Free memory was 71.8MB in the beginning and 69.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:28:11,684 INFO L158 Benchmark]: Boogie Preprocessor took 17.68ms. Allocated memory is still 146.8MB. Free memory was 69.0MB in the beginning and 67.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:28:11,684 INFO L158 Benchmark]: RCFGBuilder took 289.01ms. Allocated memory is still 146.8MB. Free memory was 67.6MB in the beginning and 102.0MB in the end (delta: -34.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-12-13 20:28:11,685 INFO L158 Benchmark]: TraceAbstraction took 303.15ms. Allocated memory is still 146.8MB. Free memory was 101.1MB in the beginning and 79.9MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 20:28:11,685 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 146.8MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 901.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:28:11,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 84.3MB in the beginning and 84.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 857.55ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 64.2MB in the beginning and 71.8MB in the end (delta: -7.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.58ms. Allocated memory is still 146.8MB. Free memory was 71.8MB in the beginning and 69.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.68ms. Allocated memory is still 146.8MB. Free memory was 69.0MB in the beginning and 67.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.01ms. Allocated memory is still 146.8MB. Free memory was 67.6MB in the beginning and 102.0MB in the end (delta: -34.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 303.15ms. Allocated memory is still 146.8MB. Free memory was 101.1MB in the beginning and 79.9MB in the end (delta: 21.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 146.8MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 901.2kB). 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1552, overapproximation of bitwiseAnd at line 1552. 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); VAL [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 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) [L1562] RET printLine("Calling bad()...") VAL [\old(argc)=7516192771, argc=7516192771, argv={7516192770:7516192772}, argv={7516192770:7516192772}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_rand_postdec_01_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=2147483647, rand()=196608, rand()=7, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-6442450944] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:28:11,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8 --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 05adc65923fd88a9eb67104c671858c9d88a49564df6a8de4a7d0f9baca1a937 --- 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-2329fc7 [2022-12-13 20:28:13,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:28:13,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:28:13,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:28:13,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:28:13,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:28:13,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:28:13,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:28:13,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:28:13,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:28:13,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:28:13,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:28:13,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:28:13,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:28:13,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:28:13,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:28:13,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:28:13,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:28:13,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:28:13,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:28:13,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:28:13,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:28:13,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:28:13,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:28:13,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:28:13,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:28:13,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:28:13,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:28:13,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:28:13,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:28:13,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:28:13,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:28:13,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:28:13,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:28:13,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:28:13,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:28:13,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:28:13,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:28:13,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:28:13,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:28:13,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:28:13,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:28:13,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:28:13,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:28:13,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:28:13,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:28:13,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:28:13,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:28:13,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:28:13,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:28:13,440 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:28:13,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:28:13,440 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:28:13,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:28:13,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:28:13,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:28:13,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:28:13,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:28:13,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:28:13,441 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:28:13,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:28:13,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:28:13,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:28:13,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:28:13,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:28:13,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:28:13,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:28:13,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:28:13,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:28:13,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:28:13,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:28:13,443 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:28:13,443 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:28:13,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:28:13,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:28:13,444 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:28:13,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:28:13,444 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:28:13,444 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:28:13,444 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_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05adc65923fd88a9eb67104c671858c9d88a49564df6a8de4a7d0f9baca1a937 [2022-12-13 20:28:13,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:28:13,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:28:13,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:28:13,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:28:13,711 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:28:13,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i [2022-12-13 20:28:16,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:28:16,621 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:28:16,622 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_01_bad.i [2022-12-13 20:28:16,637 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data/155ccec58/ca0f11b46dbe485fb553e936470f6c20/FLAG36b0b072f [2022-12-13 20:28:16,648 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/data/155ccec58/ca0f11b46dbe485fb553e936470f6c20 [2022-12-13 20:28:16,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:28:16,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:28:16,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:28:16,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:28:16,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:28:16,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:28:16" (1/1) ... [2022-12-13 20:28:16,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ad5119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:16, skipping insertion in model container [2022-12-13 20:28:16,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:28:16" (1/1) ... [2022-12-13 20:28:16,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:28:16,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:28:16,982 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:28:17,297 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:28:17,301 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:17,303 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:17,305 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:17,306 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:17,326 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:28:17,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:28:17,338 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:28:17,354 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:28:17,401 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:28:17,403 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:17,404 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:28:17,406 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:17,407 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:28:17,412 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:28:17,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:28:17,500 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:28:17,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17 WrapperNode [2022-12-13 20:28:17,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:28:17,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:28:17,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:28:17,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:28:17,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,540 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-13 20:28:17,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:28:17,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:28:17,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:28:17,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:28:17,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,559 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:28:17,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:28:17,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:28:17,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:28:17,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (1/1) ... [2022-12-13 20:28:17,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:28:17,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:28:17,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:28:17,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:28:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:28:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:28:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:28:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:28:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:28:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:28:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:28:17,764 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:28:17,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:28:17,869 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:28:17,874 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:28:17,874 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:28:17,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:17 BoogieIcfgContainer [2022-12-13 20:28:17,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:28:17,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:28:17,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:28:17,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:28:17,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:28:16" (1/3) ... [2022-12-13 20:28:17,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a14343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:28:17, skipping insertion in model container [2022-12-13 20:28:17,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:28:17" (2/3) ... [2022-12-13 20:28:17,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a14343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:28:17, skipping insertion in model container [2022-12-13 20:28:17,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:17" (3/3) ... [2022-12-13 20:28:17,884 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_01_bad.i [2022-12-13 20:28:17,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:28:17,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:28:17,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:28:17,952 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;@40d57f79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:28:17,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:28:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:28:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:28:17,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:28:17,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:28:17,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:28:17,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:28:17,972 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-12-13 20:28:17,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:28:17,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353787737] [2022-12-13 20:28:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:28:17,982 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 [2022-12-13 20:28:17,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:28:17,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:28:17,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:28:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:28:18,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:28:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:28:18,125 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:28:18,127 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:28:18,128 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:28:18,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:28:18,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:28:18,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:28:18,335 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:28:18,340 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:28:18,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:28:18 BoogieIcfgContainer [2022-12-13 20:28:18,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:28:18,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:28:18,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:28:18,360 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:28:18,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:28:17" (3/4) ... [2022-12-13 20:28:18,362 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 20:28:18,394 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:28:18,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:28:18,395 INFO L158 Benchmark]: Toolchain (without parser) took 1743.15ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.3MB in the beginning and 55.1MB in the end (delta: -790.0kB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-13 20:28:18,395 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:28:18,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 847.92ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.1MB in the beginning and 67.7MB in the end (delta: -13.7MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-12-13 20:28:18,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 64.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:28:18,397 INFO L158 Benchmark]: Boogie Preprocessor took 21.61ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 62.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:28:18,397 INFO L158 Benchmark]: RCFGBuilder took 312.57ms. Allocated memory is still 96.5MB. Free memory was 62.5MB in the beginning and 49.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:28:18,398 INFO L158 Benchmark]: TraceAbstraction took 481.62ms. Allocated memory is still 96.5MB. Free memory was 48.9MB in the beginning and 57.8MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:28:18,398 INFO L158 Benchmark]: Witness Printer took 34.22ms. Allocated memory is still 96.5MB. Free memory was 57.8MB in the beginning and 55.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:28:18,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 52.4MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 847.92ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.1MB in the beginning and 67.7MB in the end (delta: -13.7MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 64.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.61ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 62.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 312.57ms. Allocated memory is still 96.5MB. Free memory was 62.5MB in the beginning and 49.8MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 481.62ms. Allocated memory is still 96.5MB. Free memory was 48.9MB in the beginning and 57.8MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.22ms. Allocated memory is still 96.5MB. Free memory was 57.8MB in the beginning and 55.1MB in the end (delta: 2.7MB). 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: 1554]: 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] [L1562] 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) [L1562] 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] [L1563] CALL CWE191_Integer_Underflow__int_rand_postdec_01_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] 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()=32767, rand()=65535, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 20:28:18,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b618805e-35be-484d-9cb6-cbdcd5b41b3c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)