./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_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_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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_baef57b7-00af-4a8f-81e9-981c26849384/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 b46d9056c51296d86959c0dc6477e58afd526030f4a24e2585b0578ae844a196 --- 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 11:24:51,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:24:51,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:24:51,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:24:51,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:24:51,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:24:51,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:24:51,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:24:51,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:24:51,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:24:51,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:24:51,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:24:51,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:24:51,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:24:51,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:24:51,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:24:51,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:24:51,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:24:51,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:24:51,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:24:51,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:24:51,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:24:51,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:24:51,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:24:51,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:24:51,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:24:51,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:24:51,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:24:51,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:24:51,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:24:51,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:24:51,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:24:51,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:24:51,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:24:51,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:24:51,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:24:51,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:24:51,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:24:51,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:24:51,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:24:51,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:24:51,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 11:24:51,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:24:51,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:24:51,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:24:51,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:24:51,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:24:51,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:24:51,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:24:51,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:24:51,280 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:24:51,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:24:51,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:24:51,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:24:51,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:24:51,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:24:51,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:24:51,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:24:51,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:24:51,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:24:51,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:24:51,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:24:51,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:24:51,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:24:51,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:24:51,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:24:51,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:24:51,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:24:51,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:24:51,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:24:51,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:24:51,284 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:24:51,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:24:51,284 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:24:51,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:24:51,284 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:24:51,284 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_baef57b7-00af-4a8f-81e9-981c26849384/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b46d9056c51296d86959c0dc6477e58afd526030f4a24e2585b0578ae844a196 [2022-12-13 11:24:51,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:24:51,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:24:51,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:24:51,482 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:24:51,482 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:24:51,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_bad.i [2022-12-13 11:24:54,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:24:54,284 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:24:54,285 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_bad.i [2022-12-13 11:24:54,297 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data/f7b14ef08/338e564568f143879a8a9da3f3286ffb/FLAGe6ed2d672 [2022-12-13 11:24:54,615 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data/f7b14ef08/338e564568f143879a8a9da3f3286ffb [2022-12-13 11:24:54,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:24:54,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:24:54,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:24:54,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:24:54,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:24:54,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:24:54" (1/1) ... [2022-12-13 11:24:54,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5b3096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:54, skipping insertion in model container [2022-12-13 11:24:54,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:24:54" (1/1) ... [2022-12-13 11:24:54,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:24:54,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:24:54,908 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:24:55,223 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:24:55,227 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:24:55,228 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:24:55,230 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:24:55,231 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:24:55,254 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:24:55,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:24:55,262 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:24:55,276 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:24:55,305 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:24:55,306 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:24:55,307 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:24:55,308 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:24:55,309 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:24:55,312 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:24:55,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:24:55,399 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:24:55,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55 WrapperNode [2022-12-13 11:24:55,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:24:55,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:24:55,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:24:55,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:24:55,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,463 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2022-12-13 11:24:55,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:24:55,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:24:55,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:24:55,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:24:55,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,486 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:24:55,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:24:55,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:24:55,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:24:55,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (1/1) ... [2022-12-13 11:24:55,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:24:55,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:24:55,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:24:55,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:24:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:24:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:24:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:24:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:24:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:24:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:24:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:24:55,676 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:24:55,678 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:24:55,792 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:24:55,796 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:24:55,797 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:24:55,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:24:55 BoogieIcfgContainer [2022-12-13 11:24:55,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:24:55,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:24:55,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:24:55,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:24:55,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:24:54" (1/3) ... [2022-12-13 11:24:55,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be05ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:24:55, skipping insertion in model container [2022-12-13 11:24:55,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:55" (2/3) ... [2022-12-13 11:24:55,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be05ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:24:55, skipping insertion in model container [2022-12-13 11:24:55,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:24:55" (3/3) ... [2022-12-13 11:24:55,805 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_44_bad.i [2022-12-13 11:24:55,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:24:55,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:24:55,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:24:55,859 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;@7e9ac1f2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:24:55,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:24:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 11:24:55,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:24:55,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:24:55,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:24:55,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:24:55,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:24:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283626, now seen corresponding path program 1 times [2022-12-13 11:24:55,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:24:55,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987986131] [2022-12-13 11:24:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:24:55,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:24:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:24:55,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:24:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:24:56,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:24:56,042 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:24:56,043 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:24:56,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:24:56,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:24:56,048 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:24:56,052 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:24:56,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:24:56 BoogieIcfgContainer [2022-12-13 11:24:56,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:24:56,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:24:56,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:24:56,069 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:24:56,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:24:55" (3/4) ... [2022-12-13 11:24:56,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:24:56,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:24:56,072 INFO L158 Benchmark]: Toolchain (without parser) took 1453.26ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 113.1MB in the beginning and 118.7MB in the end (delta: -5.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-12-13 11:24:56,073 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 148.9MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:24:56,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 780.18ms. Allocated memory is still 148.9MB. Free memory was 112.8MB in the beginning and 114.7MB in the end (delta: -1.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2022-12-13 11:24:56,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.31ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 114.6MB in the beginning and 154.3MB in the end (delta: -39.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-12-13 11:24:56,074 INFO L158 Benchmark]: Boogie Preprocessor took 26.77ms. Allocated memory is still 186.6MB. Free memory was 154.3MB in the beginning and 152.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:24:56,074 INFO L158 Benchmark]: RCFGBuilder took 306.99ms. Allocated memory is still 186.6MB. Free memory was 152.3MB in the beginning and 138.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:24:56,074 INFO L158 Benchmark]: TraceAbstraction took 268.00ms. Allocated memory is still 186.6MB. Free memory was 137.6MB in the beginning and 118.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 11:24:56,075 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 186.6MB. Free memory was 118.7MB in the beginning and 118.7MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:24:56,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 148.9MB. Free memory is still 120.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 780.18ms. Allocated memory is still 148.9MB. Free memory was 112.8MB in the beginning and 114.7MB in the end (delta: -1.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.31ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 114.6MB in the beginning and 154.3MB in the end (delta: -39.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.77ms. Allocated memory is still 186.6MB. Free memory was 154.3MB in the beginning and 152.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.99ms. Allocated memory is still 186.6MB. Free memory was 152.3MB in the beginning and 138.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 268.00ms. Allocated memory is still 186.6MB. Free memory was 137.6MB in the beginning and 118.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 186.6MB. Free memory was 118.7MB in the beginning and 118.7MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1561, overapproximation of bitwiseAnd at line 1561. 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] [L1567] 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) [L1567] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483649:2147483651}, argv={2147483649:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_predec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1561] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1561] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [={-1:0}, 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()=4, rand()=5, rand()=1, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648] [L1561] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1562] CALL funcPtr(data) [L1551] --data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 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=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, 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 11:24:56,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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_baef57b7-00af-4a8f-81e9-981c26849384/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 b46d9056c51296d86959c0dc6477e58afd526030f4a24e2585b0578ae844a196 --- 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 11:24:57,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:24:57,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:24:57,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:24:57,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:24:57,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:24:57,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:24:57,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:24:57,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:24:57,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:24:57,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:24:57,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:24:57,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:24:57,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:24:57,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:24:57,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:24:57,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:24:57,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:24:57,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:24:57,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:24:57,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:24:57,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:24:57,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:24:57,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:24:57,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:24:57,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:24:57,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:24:57,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:24:57,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:24:57,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:24:57,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:24:57,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:24:57,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:24:57,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:24:57,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:24:57,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:24:57,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:24:57,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:24:57,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:24:57,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:24:57,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:24:57,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 11:24:57,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:24:57,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:24:57,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:24:57,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:24:57,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:24:57,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:24:57,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:24:57,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:24:57,681 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:24:57,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:24:57,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:24:57,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:24:57,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:24:57,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:24:57,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:24:57,682 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:24:57,682 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:24:57,682 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:24:57,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:24:57,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:24:57,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:24:57,684 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:24:57,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:24:57,685 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:24:57,685 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:24:57,685 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_baef57b7-00af-4a8f-81e9-981c26849384/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b46d9056c51296d86959c0dc6477e58afd526030f4a24e2585b0578ae844a196 [2022-12-13 11:24:57,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:24:57,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:24:57,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:24:57,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:24:57,915 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:24:57,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_bad.i [2022-12-13 11:25:00,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:25:00,704 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:25:00,705 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_44_bad.i [2022-12-13 11:25:00,723 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data/a786bb110/8b2498fb03fa48cab92d38e753a342a7/FLAG937851c54 [2022-12-13 11:25:00,738 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/data/a786bb110/8b2498fb03fa48cab92d38e753a342a7 [2022-12-13 11:25:00,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:25:00,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:25:00,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:25:00,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:25:00,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:25:00,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:25:00" (1/1) ... [2022-12-13 11:25:00,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae69b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:00, skipping insertion in model container [2022-12-13 11:25:00,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:25:00" (1/1) ... [2022-12-13 11:25:00,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:25:00,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:25:01,099 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:25:01,504 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:25:01,507 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:25:01,508 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:25:01,510 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:25:01,510 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:25:01,529 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:25:01,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:25:01,539 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:25:01,552 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:25:01,584 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:25:01,585 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:25:01,586 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:25:01,587 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:25:01,587 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:25:01,591 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:25:01,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:25:01,673 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:25:01,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01 WrapperNode [2022-12-13 11:25:01,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:25:01,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:25:01,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:25:01,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:25:01,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,727 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2022-12-13 11:25:01,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:25:01,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:25:01,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:25:01,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:25:01,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,753 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:25:01,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:25:01,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:25:01,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:25:01,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (1/1) ... [2022-12-13 11:25:01,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:25:01,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:25:01,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:25:01,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:25:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:25:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:25:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:25:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:25:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:25:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:25:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:25:01,930 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:25:01,932 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:25:02,041 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:25:02,047 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:25:02,047 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:25:02,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:25:02 BoogieIcfgContainer [2022-12-13 11:25:02,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:25:02,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:25:02,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:25:02,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:25:02,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:25:00" (1/3) ... [2022-12-13 11:25:02,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b0af90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:25:02, skipping insertion in model container [2022-12-13 11:25:02,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:01" (2/3) ... [2022-12-13 11:25:02,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b0af90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:25:02, skipping insertion in model container [2022-12-13 11:25:02,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:25:02" (3/3) ... [2022-12-13 11:25:02,057 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_44_bad.i [2022-12-13 11:25:02,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:25:02,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:25:02,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:25:02,129 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;@5caedff2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:25:02,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:25:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 11:25:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:25:02,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:25:02,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:25:02,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:25:02,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:02,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283626, now seen corresponding path program 1 times [2022-12-13 11:25:02,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:25:02,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240163703] [2022-12-13 11:25:02,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:02,161 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 11:25:02,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:25:02,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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 11:25:02,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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 11:25:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:25:02,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:25:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:25:02,320 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 11:25:02,321 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:25:02,322 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:25:02,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:25:02,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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 11:25:02,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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 11:25:02,528 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:25:02,534 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:25:02,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:25:02 BoogieIcfgContainer [2022-12-13 11:25:02,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:25:02,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:25:02,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:25:02,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:25:02,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:25:02" (3/4) ... [2022-12-13 11:25:02,561 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 11:25:02,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:25:02,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:25:02,602 INFO L158 Benchmark]: Toolchain (without parser) took 1860.48ms. Allocated memory is still 81.8MB. Free memory was 56.9MB in the beginning and 42.7MB in the end (delta: 14.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-12-13 11:25:02,603 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:25:02,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 930.81ms. Allocated memory is still 81.8MB. Free memory was 56.9MB in the beginning and 33.1MB in the end (delta: 23.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-13 11:25:02,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.53ms. Allocated memory is still 81.8MB. Free memory was 33.1MB in the beginning and 54.2MB in the end (delta: -21.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-13 11:25:02,604 INFO L158 Benchmark]: Boogie Preprocessor took 30.31ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 52.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:25:02,605 INFO L158 Benchmark]: RCFGBuilder took 290.28ms. Allocated memory is still 81.8MB. Free memory was 52.1MB in the beginning and 38.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:25:02,605 INFO L158 Benchmark]: TraceAbstraction took 506.54ms. Allocated memory is still 81.8MB. Free memory was 37.8MB in the beginning and 45.1MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:25:02,606 INFO L158 Benchmark]: Witness Printer took 43.10ms. Allocated memory is still 81.8MB. Free memory was 45.1MB in the beginning and 42.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:25:02,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 930.81ms. Allocated memory is still 81.8MB. Free memory was 56.9MB in the beginning and 33.1MB in the end (delta: 23.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.53ms. Allocated memory is still 81.8MB. Free memory was 33.1MB in the beginning and 54.2MB in the end (delta: -21.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.31ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 52.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.28ms. Allocated memory is still 81.8MB. Free memory was 52.1MB in the beginning and 38.7MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 506.54ms. Allocated memory is still 81.8MB. Free memory was 37.8MB in the beginning and 45.1MB in the end (delta: -7.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.10ms. Allocated memory is still 81.8MB. Free memory was 45.1MB in the beginning and 42.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1551]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] 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) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_predec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1561] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1561] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [={-1:0}, 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()=32767, rand()=0, rand()=32767, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1561] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1562] CALL funcPtr(data) [L1551] --data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 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, 0.0s 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 11:25:02,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baef57b7-00af-4a8f-81e9-981c26849384/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)