./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a940ba7bc377e1e68c2ee3c3fae553e98db874ee2aacbc0ec6a6e66a75c539eb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:23:55,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:23:55,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 07:23:55,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:23:55,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:23:55,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:23:55,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:23:55,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:23:55,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:23:55,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:23:55,239 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:23:55,240 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:23:55,241 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:23:55,243 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:23:55,244 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:23:55,245 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:23:55,245 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:23:55,245 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:23:55,246 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:23:55,246 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:23:55,247 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:23:55,251 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:23:55,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:23:55,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:23:55,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:23:55,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:23:55,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:23:55,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:23:55,256 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:23:55,275 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:23:55,275 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:23:55,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:23:55,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:23:55,276 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:23:55,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:23:55,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:23:55,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:23:55,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:23:55,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:23:55,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:23:55,278 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:23:55,280 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:23:55,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:23:55,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:23:55,282 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:23:55,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:23:55,282 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a940ba7bc377e1e68c2ee3c3fae553e98db874ee2aacbc0ec6a6e66a75c539eb [2024-11-09 07:23:55,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:23:55,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:23:55,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:23:55,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:23:55,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:23:55,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i Unable to find full path for "g++" [2024-11-09 07:23:58,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:23:58,700 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:23:58,701 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i [2024-11-09 07:23:58,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data/c5f29fe9a/fb986ddd893e4567a3e8e32faf8d62e7/FLAG192c83cd2 [2024-11-09 07:23:58,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data/c5f29fe9a/fb986ddd893e4567a3e8e32faf8d62e7 [2024-11-09 07:23:58,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:23:58,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:23:58,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:23:58,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:23:58,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:23:58,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:23:58" (1/1) ... [2024-11-09 07:23:58,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3f79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:58, skipping insertion in model container [2024-11-09 07:23:58,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:23:58" (1/1) ... [2024-11-09 07:23:58,871 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:24:00,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:00,168 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:24:00,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:00,447 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:24:00,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00 WrapperNode [2024-11-09 07:24:00,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:00,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:00,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:24:00,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:24:00,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,560 INFO L138 Inliner]: procedures = 498, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 107 [2024-11-09 07:24:00,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:00,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:24:00,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:24:00,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:24:00,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:24:00,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:24:00,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:24:00,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:24:00,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (1/1) ... [2024-11-09 07:24:00,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:00,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:00,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:24:00,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:24:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:24:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:24:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:24:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:24:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:24:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:24:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:24:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:24:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:24:01,027 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:24:01,031 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:24:01,305 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-11-09 07:24:01,306 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:24:01,698 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:24:01,699 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:24:01,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:01 BoogieIcfgContainer [2024-11-09 07:24:01,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:24:01,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:24:01,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:24:01,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:24:01,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:23:58" (1/3) ... [2024-11-09 07:24:01,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56662772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:01, skipping insertion in model container [2024-11-09 07:24:01,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:00" (2/3) ... [2024-11-09 07:24:01,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56662772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:01, skipping insertion in model container [2024-11-09 07:24:01,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:01" (3/3) ... [2024-11-09 07:24:01,718 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_64_bad.i [2024-11-09 07:24:01,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:24:01,746 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:24:01,832 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:24:01,841 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@47de1e50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:24:01,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:24:01,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:24:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:24:01,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:01,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:24:01,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:24:01,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:01,869 INFO L85 PathProgramCache]: Analyzing trace with hash -98349427, now seen corresponding path program 1 times [2024-11-09 07:24:01,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:01,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856051597] [2024-11-09 07:24:01,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:01,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:24:02,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:24:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:24:02,515 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:24:02,519 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:24:02,521 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:24:02,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:24:02,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:24:02,532 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:24:02,584 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:24:02,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:24:02 BoogieIcfgContainer [2024-11-09 07:24:02,590 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:24:02,591 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:24:02,591 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:24:02,592 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:24:02,592 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:01" (3/4) ... [2024-11-09 07:24:02,599 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:24:02,601 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:24:02,604 INFO L158 Benchmark]: Toolchain (without parser) took 3846.59ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 113.7MB in the beginning and 171.5MB in the end (delta: -57.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:24:02,604 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:24:02,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1690.23ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 50.5MB in the end (delta: 62.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-09 07:24:02,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.49ms. Allocated memory is still 151.0MB. Free memory was 50.5MB in the beginning and 115.7MB in the end (delta: -65.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-11-09 07:24:02,608 INFO L158 Benchmark]: Boogie Preprocessor took 85.37ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 115.7MB in the beginning and 172.8MB in the end (delta: -57.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-09 07:24:02,610 INFO L158 Benchmark]: RCFGBuilder took 1052.20ms. Allocated memory is still 205.5MB. Free memory was 172.8MB in the beginning and 130.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-09 07:24:02,610 INFO L158 Benchmark]: TraceAbstraction took 887.20ms. Allocated memory is still 205.5MB. Free memory was 130.9MB in the beginning and 171.5MB in the end (delta: -40.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2024-11-09 07:24:02,611 INFO L158 Benchmark]: Witness Printer took 10.10ms. Allocated memory is still 205.5MB. Free memory was 171.5MB in the beginning and 171.5MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:24:02,618 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 151.0MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1690.23ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 50.5MB in the end (delta: 62.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.49ms. Allocated memory is still 151.0MB. Free memory was 50.5MB in the beginning and 115.7MB in the end (delta: -65.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.37ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 115.7MB in the beginning and 172.8MB in the end (delta: -57.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1052.20ms. Allocated memory is still 205.5MB. Free memory was 172.8MB in the beginning and 130.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 887.20ms. Allocated memory is still 205.5MB. Free memory was 130.9MB in the beginning and 171.5MB in the end (delta: -40.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Witness Printer took 10.10ms. Allocated memory is still 205.5MB. Free memory was 171.5MB in the beginning and 171.5MB in the end (delta: 2.6kB). 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559, overapproximation of bitwiseOr at line 1553. 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); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1559] RET 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] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] --data VAL [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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:24:02,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a940ba7bc377e1e68c2ee3c3fae553e98db874ee2aacbc0ec6a6e66a75c539eb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:24:05,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:24:05,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 07:24:05,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:24:05,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:24:05,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:24:05,888 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:24:05,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:24:05,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:24:05,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:24:05,893 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:24:05,893 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:24:05,894 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:24:05,897 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:24:05,897 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:24:05,898 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:24:05,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:24:05,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:24:05,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:24:05,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:24:05,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:24:05,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:24:05,906 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:24:05,907 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:24:05,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:24:05,908 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:24:05,908 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:24:05,908 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:24:05,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:24:05,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:24:05,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:24:05,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:24:05,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:24:05,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:24:05,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:05,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:24:05,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:24:05,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:24:05,916 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:24:05,916 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:24:05,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:24:05,918 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:24:05,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a940ba7bc377e1e68c2ee3c3fae553e98db874ee2aacbc0ec6a6e66a75c539eb [2024-11-09 07:24:06,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:24:06,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:24:06,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:24:06,507 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:24:06,508 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:24:06,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i Unable to find full path for "g++" [2024-11-09 07:24:09,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:24:09,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:24:09,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_64_bad.i [2024-11-09 07:24:09,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data/98554f6c5/8e86937fba984d63ac233f92f0421100/FLAGb1266a01a [2024-11-09 07:24:09,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/data/98554f6c5/8e86937fba984d63ac233f92f0421100 [2024-11-09 07:24:09,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:24:09,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:24:09,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:09,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:24:10,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:24:10,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:09" (1/1) ... [2024-11-09 07:24:10,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5183a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:10, skipping insertion in model container [2024-11-09 07:24:10,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:09" (1/1) ... [2024-11-09 07:24:10,125 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:24:11,799 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 07:24:11,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:11,820 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:24:11,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:12,150 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:24:12,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12 WrapperNode [2024-11-09 07:24:12,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:12,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:12,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:24:12,153 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:24:12,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,246 INFO L138 Inliner]: procedures = 503, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-09 07:24:12,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:12,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:24:12,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:24:12,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:24:12,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:24:12,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:24:12,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:24:12,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:24:12,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (1/1) ... [2024-11-09 07:24:12,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:12,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:12,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:24:12,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:24:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:24:12,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:24:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:24:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:24:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:24:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:24:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:24:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:24:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:24:12,694 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:24:12,698 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:24:12,933 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-09 07:24:12,933 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:24:12,956 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:24:12,957 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:24:12,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:12 BoogieIcfgContainer [2024-11-09 07:24:12,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:24:12,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:24:12,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:24:12,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:24:12,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:24:09" (1/3) ... [2024-11-09 07:24:12,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339e70fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:12, skipping insertion in model container [2024-11-09 07:24:12,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:12" (2/3) ... [2024-11-09 07:24:12,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339e70fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:12, skipping insertion in model container [2024-11-09 07:24:12,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:12" (3/3) ... [2024-11-09 07:24:12,975 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_64_bad.i [2024-11-09 07:24:12,996 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:24:12,996 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:24:13,087 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:24:13,096 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6456987d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:24:13,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:24:13,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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) [2024-11-09 07:24:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:24:13,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:13,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:13,114 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:24:13,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2024-11-09 07:24:13,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:24:13,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928419086] [2024-11-09 07:24:13,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:13,146 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 [2024-11-09 07:24:13,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:24:13,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 07:24:13,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:24:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:24:13,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:24:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:24:13,571 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 07:24:13,574 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:24:13,575 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:24:13,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:24:13,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 07:24:13,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 07:24:13,788 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:24:13,829 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:24:13,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:24:13 BoogieIcfgContainer [2024-11-09 07:24:13,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:24:13,835 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:24:13,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:24:13,837 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:24:13,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:12" (3/4) ... [2024-11-09 07:24:13,842 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:24:13,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:24:13,845 INFO L158 Benchmark]: Toolchain (without parser) took 3856.73ms. Allocated memory is still 100.7MB. Free memory was 72.6MB in the beginning and 61.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-11-09 07:24:13,846 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 65.0MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:24:13,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2157.61ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 68.9MB in the end (delta: 3.4MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-11-09 07:24:13,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.29ms. Allocated memory is still 100.7MB. Free memory was 68.9MB in the beginning and 65.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:24:13,849 INFO L158 Benchmark]: Boogie Preprocessor took 65.51ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 63.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:24:13,850 INFO L158 Benchmark]: RCFGBuilder took 644.38ms. Allocated memory is still 100.7MB. Free memory was 63.6MB in the beginning and 48.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:24:13,851 INFO L158 Benchmark]: TraceAbstraction took 874.47ms. Allocated memory is still 100.7MB. Free memory was 47.9MB in the beginning and 62.0MB in the end (delta: -14.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:24:13,852 INFO L158 Benchmark]: Witness Printer took 8.55ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 61.4MB in the end (delta: 605.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:24:13,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 65.0MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2157.61ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 68.9MB in the end (delta: 3.4MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.29ms. Allocated memory is still 100.7MB. Free memory was 68.9MB in the beginning and 65.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.51ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 63.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.38ms. Allocated memory is still 100.7MB. Free memory was 63.6MB in the beginning and 48.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 874.47ms. Allocated memory is still 100.7MB. Free memory was 47.9MB in the beginning and 62.0MB in the end (delta: -14.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.55ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 61.4MB in the end (delta: 605.2kB). 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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] [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1559] RET 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] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_64b_badSink(&data) [L1566] int * dataPtr = (int *)dataVoidPtr; [L1567] EXPR \read(*dataPtr) [L1567] int data = (*dataPtr); [L1569] --data VAL [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: 1569]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=22occurred 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: 0.1s 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 [2024-11-09 07:24:13,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd67cfe8-1ec7-4770-883a-814b5aa2f18e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample