./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:18:29,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:18:29,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-13 16:18:29,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:18:29,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:18:29,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:18:29,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:18:29,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:18:29,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:18:29,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:18:29,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:18:29,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:18:29,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:18:29,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:18:29,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:18:29,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:18:29,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:18:29,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:18:29,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:18:29,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:18:29,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:18:29,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:18:29,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:18:29,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:18:29,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:18:29,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:18:29,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:18:29,233 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 [2024-11-13 16:18:29,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:18:29,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:18:29,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:18:29,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:18:29,607 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:18:29,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i Unable to find full path for "g++" [2024-11-13 16:18:31,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:18:32,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:18:32,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-13 16:18:32,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data/50dd2a8b4/c725873a570e4678b27a1acd43df6b89/FLAG33ba6ed28 [2024-11-13 16:18:32,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data/50dd2a8b4/c725873a570e4678b27a1acd43df6b89 [2024-11-13 16:18:32,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:18:32,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:18:32,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:18:32,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:18:32,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:18:32,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:18:32" (1/1) ... [2024-11-13 16:18:32,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5182f35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:32, skipping insertion in model container [2024-11-13 16:18:32,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:18:32" (1/1) ... [2024-11-13 16:18:32,373 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:18:33,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:18:33,486 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:18:33,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:18:33,744 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:18:33,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33 WrapperNode [2024-11-13 16:18:33,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:18:33,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:18:33,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:18:33,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:18:33,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,822 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2024-11-13 16:18:33,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:18:33,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:18:33,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:18:33,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:18:33,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,862 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 16:18:33,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:18:33,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:18:33,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:18:33,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:18:33,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (1/1) ... [2024-11-13 16:18:33,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:18:33,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:33,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:18:33,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:18:33,968 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:18:33,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:18:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:18:33,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:18:33,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:18:34,201 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:18:34,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:18:34,509 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-13 16:18:34,509 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:18:34,521 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:18:34,522 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:18:34,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:34 BoogieIcfgContainer [2024-11-13 16:18:34,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:18:34,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:18:34,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:18:34,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:18:34,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:18:32" (1/3) ... [2024-11-13 16:18:34,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689e691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:18:34, skipping insertion in model container [2024-11-13 16:18:34,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:33" (2/3) ... [2024-11-13 16:18:34,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689e691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:18:34, skipping insertion in model container [2024-11-13 16:18:34,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:34" (3/3) ... [2024-11-13 16:18:34,535 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-13 16:18:34,552 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:18:34,554 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_predec_31_bad.i that has 2 procedures, 41 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 16:18:34,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:18:34,646 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=PETRI_NET, 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;@2778355, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:18:34,646 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:18:34,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 35 states have (on average 1.457142857142857) internal successors, (51), 37 states have internal predecessors, (51), 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) [2024-11-13 16:18:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:18:34,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:34,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:18:34,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 16:18:34,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:34,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1571693812, now seen corresponding path program 1 times [2024-11-13 16:18:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:18:34,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948713093] [2024-11-13 16:18:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:34,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:18:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:18:34,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:18:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:18:34,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:18:34,968 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:18:34,970 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 16:18:34,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 16:18:34,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:18:34,978 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 16:18:35,005 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:18:35,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:18:35 BoogieIcfgContainer [2024-11-13 16:18:35,013 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:18:35,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:18:35,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:18:35,014 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:18:35,016 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:34" (3/4) ... [2024-11-13 16:18:35,019 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:18:35,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:18:35,025 INFO L158 Benchmark]: Toolchain (without parser) took 2738.47ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 88.4MB in the end (delta: 25.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-13 16:18:35,025 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:35,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1459.73ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 55.8MB in the end (delta: 57.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 16:18:35,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.03ms. Allocated memory is still 142.6MB. Free memory was 55.8MB in the beginning and 52.9MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:18:35,026 INFO L158 Benchmark]: Boogie Preprocessor took 55.92ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 51.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:35,027 INFO L158 Benchmark]: RCFGBuilder took 640.07ms. Allocated memory is still 142.6MB. Free memory was 51.2MB in the beginning and 105.2MB in the end (delta: -54.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-11-13 16:18:35,027 INFO L158 Benchmark]: TraceAbstraction took 488.03ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 88.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:18:35,028 INFO L158 Benchmark]: Witness Printer took 6.83ms. Allocated memory is still 142.6MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:35,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1459.73ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 55.8MB in the end (delta: 57.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.03ms. Allocated memory is still 142.6MB. Free memory was 55.8MB in the beginning and 52.9MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.92ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 51.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 640.07ms. Allocated memory is still 142.6MB. Free memory was 51.2MB in the beginning and 105.2MB in the end (delta: -54.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 488.03ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 88.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.83ms. Allocated memory is still 142.6MB. Free memory is still 88.4MB. 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: 1557]: 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 1566. 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] [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] 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, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] --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: 1557]: 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, 41 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 15 NumberOfCodeBlocks, 15 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 [2024-11-13 16:18:35,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:18:37,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:18:38,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-13 16:18:38,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:18:38,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:18:38,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-13 16:18:38,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:18:38,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:18:38,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:18:38,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:18:38,189 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:18:38,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:18:38,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:18:38,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:18:38,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:18:38,191 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:18:38,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:18:38,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:18:38,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:18:38,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:18:38,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:18:38,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:18:38,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:18:38,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:18:38,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:18:38,193 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:18:38,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:18:38,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:18:38,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:18:38,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:18:38,196 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 [2024-11-13 16:18:38,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:18:38,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:18:38,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:18:38,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:18:38,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:18:38,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i Unable to find full path for "g++" [2024-11-13 16:18:40,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:18:41,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:18:41,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-13 16:18:41,394 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data/17ee317b8/418834596a8f46f498462eb6ebca367f/FLAGf2783b9d7 [2024-11-13 16:18:41,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/data/17ee317b8/418834596a8f46f498462eb6ebca367f [2024-11-13 16:18:41,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:18:41,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:18:41,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:18:41,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:18:41,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:18:41,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:18:41" (1/1) ... [2024-11-13 16:18:41,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78221a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:41, skipping insertion in model container [2024-11-13 16:18:41,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:18:41" (1/1) ... [2024-11-13 16:18:41,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:18:42,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:18:42,733 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:18:42,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:18:43,073 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:18:43,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43 WrapperNode [2024-11-13 16:18:43,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:18:43,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:18:43,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:18:43,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:18:43,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,164 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-13 16:18:43,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:18:43,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:18:43,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:18:43,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:18:43,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,188 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,201 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 16:18:43,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:18:43,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:18:43,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:18:43,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:18:43,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (1/1) ... [2024-11-13 16:18:43,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:18:43,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:43,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:18:43,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:18:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:18:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:18:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:18:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:18:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:18:43,483 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:18:43,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:18:43,646 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-13 16:18:43,646 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:18:43,660 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:18:43,660 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:18:43,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:43 BoogieIcfgContainer [2024-11-13 16:18:43,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:18:43,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:18:43,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:18:43,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:18:43,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:18:41" (1/3) ... [2024-11-13 16:18:43,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b342e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:18:43, skipping insertion in model container [2024-11-13 16:18:43,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:18:43" (2/3) ... [2024-11-13 16:18:43,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b342e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:18:43, skipping insertion in model container [2024-11-13 16:18:43,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:43" (3/3) ... [2024-11-13 16:18:43,671 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-11-13 16:18:43,686 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:18:43,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_predec_31_bad.i that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 16:18:43,747 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:18:43,763 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=PETRI_NET, 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;@119ae1ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:18:43,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:18:43,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 16:18:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 16:18:43,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:18:43,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:18:43,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 16:18:43,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:18:43,797 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2024-11-13 16:18:43,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:18:43,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1002966563] [2024-11-13 16:18:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:18:43,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:43,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:18:43,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:18:43,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:18:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:18:43,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:18:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:18:44,057 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 16:18:44,060 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:18:44,061 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 16:18:44,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 16:18:44,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:18:44,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:18:44,270 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 16:18:44,309 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:18:44,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:18:44 BoogieIcfgContainer [2024-11-13 16:18:44,314 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:18:44,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:18:44,317 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:18:44,317 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:18:44,318 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:18:43" (3/4) ... [2024-11-13 16:18:44,322 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:18:44,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:18:44,328 INFO L158 Benchmark]: Toolchain (without parser) took 2902.58ms. Allocated memory is still 83.9MB. Free memory was 57.2MB in the beginning and 43.1MB in the end (delta: 14.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-13 16:18:44,328 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:44,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1650.03ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 52.6MB in the end (delta: 4.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 16:18:44,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.83ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 49.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:44,330 INFO L158 Benchmark]: Boogie Preprocessor took 67.05ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 47.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:44,330 INFO L158 Benchmark]: RCFGBuilder took 428.31ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 35.0MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:18:44,330 INFO L158 Benchmark]: TraceAbstraction took 650.18ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 43.1MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:44,331 INFO L158 Benchmark]: Witness Printer took 6.86ms. Allocated memory is still 83.9MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:18:44,335 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1650.03ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 52.6MB in the end (delta: 4.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.83ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 49.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.05ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 47.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.31ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 35.0MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 650.18ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 43.1MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.86ms. Allocated memory is still 83.9MB. Free memory is still 43.1MB. 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: 1557]: 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 1566. 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] [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] --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: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:18:44,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fef769c-fec0-45ae-8c3e-d97642aa3b60/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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