./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:35:45,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:35:46,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 06:35:46,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:35:46,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:35:46,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:35:46,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:35:46,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:35:46,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:35:46,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:35:46,135 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:35:46,136 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:35:46,138 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:35:46,139 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:35:46,139 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:35:46,142 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:35:46,143 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:35:46,143 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:35:46,144 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:35:46,144 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:35:46,145 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:35:46,149 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:35:46,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:35:46,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:35:46,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:35:46,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:35:46,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:35:46,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:35:46,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:35:46,157 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:35:46,158 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:35:46,158 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:35:46,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:35:46,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:35:46,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:35:46,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:35:46,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:35:46,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:35:46,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:35:46,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:35:46,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:35:46,165 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:35:46,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:35:46,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:35:46,166 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:35:46,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:35:46,167 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_e3f40d72-d66b-429a-988c-91c4c2d10f52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 [2024-11-09 06:35:46,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:35:46,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:35:46,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:35:46,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:35:46,589 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:35:46,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i Unable to find full path for "g++" [2024-11-09 06:35:48,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:35:49,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:35:49,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2024-11-09 06:35:49,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data/339246160/ef65f5698c7d4174a2c8cad722194bbb/FLAG08a32b308 [2024-11-09 06:35:49,449 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data/339246160/ef65f5698c7d4174a2c8cad722194bbb [2024-11-09 06:35:49,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:35:49,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:35:49,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:35:49,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:35:49,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:35:49,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:35:49" (1/1) ... [2024-11-09 06:35:49,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104333c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:49, skipping insertion in model container [2024-11-09 06:35:49,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:35:49" (1/1) ... [2024-11-09 06:35:49,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:35:50,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:35:51,006 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:35:51,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:35:51,357 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:35:51,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51 WrapperNode [2024-11-09 06:35:51,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:35:51,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:35:51,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:35:51,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:35:51,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,421 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2024-11-09 06:35:51,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:35:51,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:35:51,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:35:51,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:35:51,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:35:51,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:35:51,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:35:51,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:35:51,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (1/1) ... [2024-11-09 06:35:51,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:35:51,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:51,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:35:51,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:35:51,577 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:35:51,577 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:35:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:35:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:35:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:35:51,759 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:35:51,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:35:52,054 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-09 06:35:52,055 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:35:52,481 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:35:52,481 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:35:52,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:35:52 BoogieIcfgContainer [2024-11-09 06:35:52,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:35:52,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:35:52,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:35:52,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:35:52,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:35:49" (1/3) ... [2024-11-09 06:35:52,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b71960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:35:52, skipping insertion in model container [2024-11-09 06:35:52,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:51" (2/3) ... [2024-11-09 06:35:52,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b71960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:35:52, skipping insertion in model container [2024-11-09 06:35:52,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:35:52" (3/3) ... [2024-11-09 06:35:52,497 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2024-11-09 06:35:52,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:35:52,523 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:35:52,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:35:52,627 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;@15caa3e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:35:52,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:35:52,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:35:52,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:35:52,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:52,650 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:52,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:35:52,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:52,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1605357568, now seen corresponding path program 1 times [2024-11-09 06:35:52,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:52,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073499667] [2024-11-09 06:35:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:35:53,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:35:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:35:53,207 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:35:53,212 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:35:53,214 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:35:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:35:53,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:35:53,223 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:35:53,253 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:35:53,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:35:53 BoogieIcfgContainer [2024-11-09 06:35:53,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:35:53,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:35:53,261 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:35:53,262 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:35:53,262 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:35:52" (3/4) ... [2024-11-09 06:35:53,266 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:35:53,267 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:35:53,269 INFO L158 Benchmark]: Toolchain (without parser) took 3812.46ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 84.1MB in the end (delta: 39.1MB). Peak memory consumption was 42.0MB. Max. memory is 16.1GB. [2024-11-09 06:35:53,270 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 119.5MB. Free memory was 87.1MB in the beginning and 87.1MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:35:53,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1899.91ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 98.1MB in the end (delta: 25.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2024-11-09 06:35:53,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.29ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 95.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:35:53,274 INFO L158 Benchmark]: Boogie Preprocessor took 52.76ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:35:53,274 INFO L158 Benchmark]: RCFGBuilder took 1006.46ms. Allocated memory is still 167.8MB. Free memory was 94.0MB in the beginning and 116.7MB in the end (delta: -22.7MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2024-11-09 06:35:53,276 INFO L158 Benchmark]: TraceAbstraction took 772.87ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 84.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 06:35:53,276 INFO L158 Benchmark]: Witness Printer took 6.37ms. Allocated memory is still 167.8MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:35:53,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 119.5MB. Free memory was 87.1MB in the beginning and 87.1MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1899.91ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 98.1MB in the end (delta: 25.2MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.29ms. Allocated memory is still 167.8MB. Free memory was 98.1MB in the beginning and 95.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.76ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 94.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1006.46ms. Allocated memory is still 167.8MB. Free memory was 94.0MB in the beginning and 116.7MB in the end (delta: -22.7MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * TraceAbstraction took 772.87ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 84.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 6.37ms. Allocated memory is still 167.8MB. Free memory is still 84.1MB. 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: 1559]: 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 1568, overapproximation of bitwiseOr at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1568] 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] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_03_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:35:53,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:35:55,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:35:56,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 06:35:56,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:35:56,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:35:56,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:35:56,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:35:56,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:35:56,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:35:56,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:35:56,068 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:35:56,068 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:35:56,069 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:35:56,069 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:35:56,069 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:35:56,070 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:35:56,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:35:56,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:35:56,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:35:56,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:35:56,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:35:56,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:35:56,079 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:35:56,080 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:35:56,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:35:56,080 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:35:56,080 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:35:56,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:35:56,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:35:56,081 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:35:56,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:35:56,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:35:56,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:35:56,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:35:56,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:35:56,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:35:56,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:35:56,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:35:56,087 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:35:56,087 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:35:56,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:35:56,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:35:56,089 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_e3f40d72-d66b-429a-988c-91c4c2d10f52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 522547437ade5102b297c26d0e08e88f4325518c4b87db98494f4f792c4f8c56 [2024-11-09 06:35:56,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:35:56,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:35:56,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:35:56,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:35:56,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:35:56,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i Unable to find full path for "g++" [2024-11-09 06:35:58,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:35:59,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:35:59,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2024-11-09 06:35:59,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data/3966be374/ae3866a6b4004c2abda5dd0dca05faf9/FLAG2ef4fe8fd [2024-11-09 06:35:59,779 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/data/3966be374/ae3866a6b4004c2abda5dd0dca05faf9 [2024-11-09 06:35:59,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:35:59,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:35:59,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:35:59,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:35:59,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:35:59,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:35:59" (1/1) ... [2024-11-09 06:35:59,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ee3fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:59, skipping insertion in model container [2024-11-09 06:35:59,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:35:59" (1/1) ... [2024-11-09 06:35:59,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:36:01,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:36:01,291 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:36:01,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:36:01,615 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:36:01,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01 WrapperNode [2024-11-09 06:36:01,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:36:01,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:36:01,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:36:01,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:36:01,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,693 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-11-09 06:36:01,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:36:01,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:36:01,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:36:01,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:36:01,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:36:01,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:36:01,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:36:01,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:36:01,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (1/1) ... [2024-11-09 06:36:01,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:36:01,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:36:01,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:36:01,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:36:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:36:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:36:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:36:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:36:01,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:36:02,026 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:36:02,028 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:36:02,222 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 06:36:02,223 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:36:02,247 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:36:02,248 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:36:02,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:36:02 BoogieIcfgContainer [2024-11-09 06:36:02,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:36:02,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:36:02,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:36:02,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:36:02,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:35:59" (1/3) ... [2024-11-09 06:36:02,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da8f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:36:02, skipping insertion in model container [2024-11-09 06:36:02,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:36:01" (2/3) ... [2024-11-09 06:36:02,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da8f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:36:02, skipping insertion in model container [2024-11-09 06:36:02,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:36:02" (3/3) ... [2024-11-09 06:36:02,260 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_03_bad.i [2024-11-09 06:36:02,278 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:36:02,278 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:36:02,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:36:02,367 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;@c4b33ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:36:02,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:36:02,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:36:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:36:02,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:02,389 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:02,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:36:02,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:02,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2024-11-09 06:36:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:02,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561511094] [2024-11-09 06:36:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:02,414 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 06:36:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:02,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 06:36:02,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 06:36:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:02,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:36:02,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:36:02,642 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:02,643 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:02,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561511094] [2024-11-09 06:36:02,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561511094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:02,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:02,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:36:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102728065] [2024-11-09 06:36:02,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:02,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:36:02,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:02,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:36:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:36:02,689 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:36:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:02,715 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-09 06:36:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:36:02,718 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-09 06:36:02,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:02,727 INFO L225 Difference]: With dead ends: 38 [2024-11-09 06:36:02,727 INFO L226 Difference]: Without dead ends: 14 [2024-11-09 06:36:02,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:36:02,741 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:02,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:36:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-09 06:36:02,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-09 06:36:02,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:36:02,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-09 06:36:02,792 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2024-11-09 06:36:02,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:02,793 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-09 06:36:02,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:36:02,794 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-09 06:36:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:36:02,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:02,796 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:36:02,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 06:36:03,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 06:36:03,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:36:03,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2024-11-09 06:36:03,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:03,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535387807] [2024-11-09 06:36:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:03,009 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 06:36:03,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:03,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 06:36:03,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 (3)] Waiting until timeout for monitored process [2024-11-09 06:36:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:36:03,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:36:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:36:03,222 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:36:03,223 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:36:03,225 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:36:03,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:36:03,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 (3)] Ended with exit code 0 [2024-11-09 06:36:03,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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 06:36:03,433 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:36:03,470 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:36:03,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:36:03 BoogieIcfgContainer [2024-11-09 06:36:03,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:36:03,478 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:36:03,479 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:36:03,479 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:36:03,479 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:36:02" (3/4) ... [2024-11-09 06:36:03,482 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:36:03,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:36:03,485 INFO L158 Benchmark]: Toolchain (without parser) took 3700.68ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 47.4MB in the beginning and 46.6MB in the end (delta: 832.1kB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2024-11-09 06:36:03,485 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:36:03,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1830.96ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 47.2MB in the beginning and 67.5MB in the end (delta: -20.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-09 06:36:03,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.84ms. Allocated memory is still 98.6MB. Free memory was 67.5MB in the beginning and 64.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:36:03,487 INFO L158 Benchmark]: Boogie Preprocessor took 38.05ms. Allocated memory is still 98.6MB. Free memory was 64.4MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:36:03,488 INFO L158 Benchmark]: RCFGBuilder took 516.19ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 48.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:36:03,488 INFO L158 Benchmark]: TraceAbstraction took 1225.31ms. Allocated memory is still 98.6MB. Free memory was 47.7MB in the beginning and 46.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-11-09 06:36:03,489 INFO L158 Benchmark]: Witness Printer took 5.50ms. Allocated memory is still 98.6MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:36:03,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory was 51.5MB in the beginning and 51.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1830.96ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 47.2MB in the beginning and 67.5MB in the end (delta: -20.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.84ms. Allocated memory is still 98.6MB. Free memory was 67.5MB in the beginning and 64.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.05ms. Allocated memory is still 98.6MB. Free memory was 64.4MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.19ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 48.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1225.31ms. Allocated memory is still 98.6MB. Free memory was 47.7MB in the beginning and 46.6MB in the end (delta: 1.1MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 5.50ms. Allocated memory is still 98.6MB. Free memory is still 46.6MB. 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: 1559]: 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 1568. 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] [L1568] 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) [L1568] 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] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_03_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:36:03,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f40d72-d66b-429a-988c-91c4c2d10f52/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