./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_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_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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_3fa52e43-4a62-4491-b405-4977997ac8b6/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 288ffc54f81d5a767b98309c1402bdf567c8623bb567d92aa37a9379325562e7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:26:19,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:26:19,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 06:26:19,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:26:19,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:26:19,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:26:19,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:26:19,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:26:19,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:26:19,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:26:19,263 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:26:19,264 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:26:19,267 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:26:19,267 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:26:19,268 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:26:19,268 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:26:19,269 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:26:19,273 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:26:19,274 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:26:19,275 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:26:19,275 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:26:19,276 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:26:19,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:26:19,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:26:19,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:26:19,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:26:19,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:26:19,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:26:19,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:26:19,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:26:19,282 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:26:19,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:26:19,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:26:19,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:26:19,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:26:19,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:26:19,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:26:19,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:19,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:26:19,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:26:19,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:26:19,287 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:26:19,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:26:19,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:26:19,288 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:26:19,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:26:19,288 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_3fa52e43-4a62-4491-b405-4977997ac8b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 288ffc54f81d5a767b98309c1402bdf567c8623bb567d92aa37a9379325562e7 [2024-11-09 06:26:19,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:26:19,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:26:19,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:26:19,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:26:19,713 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:26:19,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_bad.i Unable to find full path for "g++" [2024-11-09 06:26:22,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:26:22,648 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:26:22,649 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_bad.i [2024-11-09 06:26:22,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data/ad6395b78/88a8ab83a4b24e5a9ea97263c3208fb8/FLAGf735442fc [2024-11-09 06:26:22,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data/ad6395b78/88a8ab83a4b24e5a9ea97263c3208fb8 [2024-11-09 06:26:22,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:26:22,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:26:22,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:22,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:26:22,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:26:22,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:22" (1/1) ... [2024-11-09 06:26:22,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b242a97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:22, skipping insertion in model container [2024-11-09 06:26:22,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:22" (1/1) ... [2024-11-09 06:26:22,898 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:26:24,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:24,282 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:26:24,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:24,725 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:26:24,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24 WrapperNode [2024-11-09 06:26:24,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:24,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:26:24,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:26:24,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:26:24,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,827 INFO L138 Inliner]: procedures = 498, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 104 [2024-11-09 06:26:24,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:26:24,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:26:24,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:26:24,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:26:24,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:26:24,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:26:24,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:26:24,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:26:24,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (1/1) ... [2024-11-09 06:26:24,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:24,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:26:24,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:26:24,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:26:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:26:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:26:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:26:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:26:24,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:26:25,195 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:26:25,197 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:26:25,483 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-09 06:26:25,483 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:26:25,908 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:26:25,909 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:26:25,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:25 BoogieIcfgContainer [2024-11-09 06:26:25,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:26:25,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:26:25,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:26:25,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:26:25,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:26:22" (1/3) ... [2024-11-09 06:26:25,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8c5fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:26:25, skipping insertion in model container [2024-11-09 06:26:25,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:24" (2/3) ... [2024-11-09 06:26:25,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8c5fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:26:25, skipping insertion in model container [2024-11-09 06:26:25,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:25" (3/3) ... [2024-11-09 06:26:25,931 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_22_bad.i [2024-11-09 06:26:25,954 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:26:25,954 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:26:26,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:26:26,045 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;@12e5ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:26:26,046 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:26:26,051 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 06:26:26,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:26:26,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:26,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:26,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:26:26,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash -977816324, now seen corresponding path program 1 times [2024-11-09 06:26:26,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:26:26,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395011679] [2024-11-09 06:26:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:26,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:26:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:26:26,430 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:26:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:26:26,643 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:26:26,646 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:26:26,648 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:26:26,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:26:26,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:26:26,658 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:26:26,688 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:26:26,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:26:26 BoogieIcfgContainer [2024-11-09 06:26:26,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:26:26,697 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:26:26,697 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:26:26,698 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:26:26,698 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:25" (3/4) ... [2024-11-09 06:26:26,702 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:26:26,703 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:26:26,705 INFO L158 Benchmark]: Toolchain (without parser) took 3914.76ms. Allocated memory is still 163.6MB. Free memory was 118.5MB in the beginning and 84.1MB in the end (delta: 34.4MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2024-11-09 06:26:26,705 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 83.5MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:26:26,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1934.29ms. Allocated memory is still 163.6MB. Free memory was 118.5MB in the beginning and 97.1MB in the end (delta: 21.4MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-11-09 06:26:26,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.61ms. Allocated memory is still 163.6MB. Free memory was 97.1MB in the beginning and 94.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:26:26,709 INFO L158 Benchmark]: Boogie Preprocessor took 40.00ms. Allocated memory is still 163.6MB. Free memory was 94.0MB in the beginning and 91.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:26:26,711 INFO L158 Benchmark]: RCFGBuilder took 1040.67ms. Allocated memory is still 163.6MB. Free memory was 91.9MB in the beginning and 116.7MB in the end (delta: -24.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 06:26:26,713 INFO L158 Benchmark]: TraceAbstraction took 775.70ms. Allocated memory is still 163.6MB. 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 06:26:26,714 INFO L158 Benchmark]: Witness Printer took 6.21ms. Allocated memory is still 163.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:26:26,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 83.5MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1934.29ms. Allocated memory is still 163.6MB. Free memory was 118.5MB in the beginning and 97.1MB in the end (delta: 21.4MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.61ms. Allocated memory is still 163.6MB. Free memory was 97.1MB in the beginning and 94.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.00ms. Allocated memory is still 163.6MB. Free memory was 94.0MB in the beginning and 91.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1040.67ms. Allocated memory is still 163.6MB. Free memory was 91.9MB in the beginning and 116.7MB in the end (delta: -24.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 775.70ms. Allocated memory is still 163.6MB. 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 6.21ms. Allocated memory is still 163.6MB. 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: 1572]: 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 1561, 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); [L1548] int CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal = 0; [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=0, 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) [L1561] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_postdec_22_bad() [L1552] int data; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((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)) [L1555] CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_postdec_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal) [L1572] data-- VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 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 06:26:26,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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_3fa52e43-4a62-4491-b405-4977997ac8b6/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 288ffc54f81d5a767b98309c1402bdf567c8623bb567d92aa37a9379325562e7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:26:29,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:26:29,790 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 06:26:29,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:26:29,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:26:29,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:26:29,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:26:29,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:26:29,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:26:29,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:26:29,868 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:26:29,872 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:26:29,873 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:26:29,874 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:26:29,875 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:26:29,875 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:26:29,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:26:29,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:26:29,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:26:29,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:26:29,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:26:29,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:26:29,886 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:26:29,887 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:26:29,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:26:29,887 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:26:29,888 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:26:29,888 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:26:29,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:26:29,891 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:26:29,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:26:29,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:26:29,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:26:29,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:26:29,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:29,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:26:29,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:26:29,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:26:29,896 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:26:29,896 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:26:29,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:26:29,898 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:26:29,899 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_3fa52e43-4a62-4491-b405-4977997ac8b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 288ffc54f81d5a767b98309c1402bdf567c8623bb567d92aa37a9379325562e7 [2024-11-09 06:26:30,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:26:30,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:26:30,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:26:30,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:26:30,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:26:30,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_bad.i Unable to find full path for "g++" [2024-11-09 06:26:32,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:26:33,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:26:33,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_22_bad.i [2024-11-09 06:26:33,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data/c1d5dbf3f/4b896191fc1c465a810ece2a975673ce/FLAG6c46a61aa [2024-11-09 06:26:33,993 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/data/c1d5dbf3f/4b896191fc1c465a810ece2a975673ce [2024-11-09 06:26:33,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:26:33,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:26:33,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:34,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:26:34,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:26:34,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:33" (1/1) ... [2024-11-09 06:26:34,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2485747e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:34, skipping insertion in model container [2024-11-09 06:26:34,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:26:33" (1/1) ... [2024-11-09 06:26:34,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:26:35,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:35,610 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:26:35,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:26:35,974 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:26:35,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35 WrapperNode [2024-11-09 06:26:35,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:26:35,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:26:35,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:26:35,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:26:35,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,055 INFO L138 Inliner]: procedures = 503, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2024-11-09 06:26:36,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:26:36,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:26:36,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:26:36,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:26:36,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:26:36,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:26:36,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:26:36,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:26:36,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (1/1) ... [2024-11-09 06:26:36,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:26:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:26:36,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:26:36,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:26:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:26:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:26:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:26:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:26:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:26:36,408 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:26:36,411 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:26:36,593 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-09 06:26:36,593 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:26:36,606 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:26:36,606 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:26:36,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:36 BoogieIcfgContainer [2024-11-09 06:26:36,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:26:36,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:26:36,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:26:36,615 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:26:36,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:26:33" (1/3) ... [2024-11-09 06:26:36,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4231bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:26:36, skipping insertion in model container [2024-11-09 06:26:36,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:26:35" (2/3) ... [2024-11-09 06:26:36,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4231bd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:26:36, skipping insertion in model container [2024-11-09 06:26:36,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:36" (3/3) ... [2024-11-09 06:26:36,619 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_22_bad.i [2024-11-09 06:26:36,644 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:26:36,645 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:26:36,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:26:36,760 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;@2760f1a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:26:36,761 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:26:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:26:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:26:36,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:36,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:36,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:26:36,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:36,795 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2024-11-09 06:26:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:36,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456415939] [2024-11-09 06:26:36,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:36,815 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 06:26:36,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:36,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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 06:26:36,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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 06:26:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:26:37,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:26:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:26:37,133 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:26:37,138 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:26:37,140 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:26:37,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:26:37,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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 06:26:37,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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 06:26:37,354 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:26:37,396 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:26:37,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:26:37 BoogieIcfgContainer [2024-11-09 06:26:37,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:26:37,403 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:26:37,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:26:37,403 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:26:37,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:26:36" (3/4) ... [2024-11-09 06:26:37,408 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:26:37,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:26:37,411 INFO L158 Benchmark]: Toolchain (without parser) took 3412.96ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 51.8MB in the beginning and 39.7MB in the end (delta: 12.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-09 06:26:37,413 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:26:37,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1977.92ms. Allocated memory is still 79.7MB. Free memory was 51.6MB in the beginning and 40.0MB in the end (delta: 11.6MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-09 06:26:37,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.01ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 36.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:26:37,417 INFO L158 Benchmark]: Boogie Preprocessor took 40.87ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 34.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:26:37,419 INFO L158 Benchmark]: RCFGBuilder took 509.09ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 34.8MB in the beginning and 57.5MB in the end (delta: -22.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-09 06:26:37,420 INFO L158 Benchmark]: TraceAbstraction took 789.86ms. Allocated memory is still 96.5MB. Free memory was 57.0MB in the beginning and 40.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:26:37,422 INFO L158 Benchmark]: Witness Printer took 6.63ms. Allocated memory is still 96.5MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:26:37,428 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1977.92ms. Allocated memory is still 79.7MB. Free memory was 51.6MB in the beginning and 40.0MB in the end (delta: 11.6MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.01ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 36.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.87ms. Allocated memory is still 79.7MB. Free memory was 36.9MB in the beginning and 34.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.09ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 34.8MB in the beginning and 57.5MB in the end (delta: -22.8MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * TraceAbstraction took 789.86ms. Allocated memory is still 96.5MB. Free memory was 57.0MB in the beginning and 40.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.63ms. Allocated memory is still 96.5MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1561. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=0, 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) [L1561] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_postdec_22_bad() [L1552] int data; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_postdec_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal) [L1572] data-- VAL [CWE191_Integer_Underflow__int_rand_postdec_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:26:37,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fa52e43-4a62-4491-b405-4977997ac8b6/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample