./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_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_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E --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 8bb6c3d2ded947be958b70d6bdac4bb650e160e4c530b9f932c547ed015f4cc0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:29:17,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:29:17,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 04:29:17,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:29:17,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:29:17,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:29:17,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:29:17,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:29:17,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:29:17,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:29:17,827 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:29:17,827 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:29:17,828 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:29:17,828 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:29:17,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:29:17,829 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:29:17,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:29:17,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:29:17,830 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:29:17,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:29:17,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:29:17,831 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:29:17,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:29:17,831 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E 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 -> 8bb6c3d2ded947be958b70d6bdac4bb650e160e4c530b9f932c547ed015f4cc0 [2024-11-14 04:29:18,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:29:18,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:29:18,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:29:18,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:29:18,233 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:29:18,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_bad.i Unable to find full path for "g++" [2024-11-14 04:29:20,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:29:20,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:29:20,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_bad.i [2024-11-14 04:29:20,811 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data/6c22731ba/a6a035edaff14474bfe7a39794b96df7/FLAG317487b39 [2024-11-14 04:29:20,875 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data/6c22731ba/a6a035edaff14474bfe7a39794b96df7 [2024-11-14 04:29:20,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:29:20,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:29:20,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:29:20,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:29:20,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:29:20,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:29:20" (1/1) ... [2024-11-14 04:29:20,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382433c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:20, skipping insertion in model container [2024-11-14 04:29:20,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:29:20" (1/1) ... [2024-11-14 04:29:20,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:29:21,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:29:21,948 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:29:22,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:29:22,279 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:29:22,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22 WrapperNode [2024-11-14 04:29:22,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:29:22,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:29:22,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:29:22,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:29:22,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,358 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 99 [2024-11-14 04:29:22,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:29:22,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:29:22,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:29:22,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:29:22,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:29:22,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:29:22,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:29:22,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:29:22,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (1/1) ... [2024-11-14 04:29:22,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:29:22,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:22,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:29:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:29:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 04:29:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 04:29:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:29:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:29:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:29:22,640 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:29:22,642 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:29:22,888 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-14 04:29:22,888 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:29:23,155 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:29:23,156 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:29:23,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:23 BoogieIcfgContainer [2024-11-14 04:29:23,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:29:23,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:29:23,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:29:23,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:29:23,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:29:20" (1/3) ... [2024-11-14 04:29:23,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b3ff09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:29:23, skipping insertion in model container [2024-11-14 04:29:23,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:22" (2/3) ... [2024-11-14 04:29:23,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b3ff09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:29:23, skipping insertion in model container [2024-11-14 04:29:23,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:23" (3/3) ... [2024-11-14 04:29:23,169 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_09_bad.i [2024-11-14 04:29:23,198 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:29:23,200 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_multiply_09_bad.i that has 2 procedures, 15 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 04:29:23,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:29:23,333 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;@43f124e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:29:23,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:29:23,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 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) [2024-11-14 04:29:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:29:23,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:23,352 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:23,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:29:23,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:23,361 INFO L85 PathProgramCache]: Analyzing trace with hash -256313826, now seen corresponding path program 1 times [2024-11-14 04:29:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:23,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640812992] [2024-11-14 04:29:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:29:23,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:29:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:29:23,913 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:29:23,915 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:29:23,917 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 04:29:23,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 04:29:23,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:29:23,928 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:29:23,965 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:29:23,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:29:23 BoogieIcfgContainer [2024-11-14 04:29:23,971 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:29:23,972 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:29:23,972 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:29:23,972 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:29:23,973 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:23" (3/4) ... [2024-11-14 04:29:23,976 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:29:23,977 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:29:23,981 INFO L158 Benchmark]: Toolchain (without parser) took 3099.82ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 55.4MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 04:29:23,982 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:23,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1402.27ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 80.1MB in the end (delta: 8.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-14 04:29:23,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.95ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 77.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:23,983 INFO L158 Benchmark]: Boogie Preprocessor took 23.60ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 76.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:23,983 INFO L158 Benchmark]: RCFGBuilder took 773.01ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 35.0MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 04:29:23,986 INFO L158 Benchmark]: TraceAbstraction took 812.24ms. Allocated memory is still 117.4MB. Free memory was 34.5MB in the beginning and 56.2MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:23,987 INFO L158 Benchmark]: Witness Printer took 5.50ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 55.4MB in the end (delta: 757.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:23,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1402.27ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 80.1MB in the end (delta: 8.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.95ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 77.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.60ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 76.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 773.01ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 35.0MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 812.24ms. Allocated memory is still 117.4MB. Free memory was 34.5MB in the beginning and 56.2MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.50ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 55.4MB in the end (delta: 757.1kB). 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1568, overapproximation of bitwiseOr at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_multiply_09_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [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)) [L1556] COND TRUE \read(GLOBAL_CONST_TRUE) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data * 2 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: 1560]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 [2024-11-14 04:29:24,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E --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 8bb6c3d2ded947be958b70d6bdac4bb650e160e4c530b9f932c547ed015f4cc0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:29:27,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:29:27,402 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 04:29:27,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:29:27,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:29:27,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:29:27,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:29:27,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:29:27,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:29:27,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:29:27,460 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:29:27,461 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:29:27,461 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:29:27,461 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:29:27,461 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:29:27,461 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:29:27,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:29:27,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:29:27,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:29:27,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:29:27,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:29:27,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:29:27,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:29:27,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:29:27,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:29:27,464 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:29:27,464 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:29:27,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:29:27,465 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:29:27,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E 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 -> 8bb6c3d2ded947be958b70d6bdac4bb650e160e4c530b9f932c547ed015f4cc0 [2024-11-14 04:29:27,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:29:27,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:29:27,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:29:27,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:29:27,875 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:29:27,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_bad.i Unable to find full path for "g++" [2024-11-14 04:29:30,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:29:30,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:29:30,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_09_bad.i [2024-11-14 04:29:30,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data/e85c546bc/3fc21c04673d407199d70a53c044e3ff/FLAGef3f7b931 [2024-11-14 04:29:30,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/data/e85c546bc/3fc21c04673d407199d70a53c044e3ff [2024-11-14 04:29:30,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:29:30,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:29:30,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:29:30,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:29:30,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:29:30,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:29:30" (1/1) ... [2024-11-14 04:29:30,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b46536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:30, skipping insertion in model container [2024-11-14 04:29:30,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:29:30" (1/1) ... [2024-11-14 04:29:30,713 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:29:31,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:29:31,924 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:29:32,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:29:32,300 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:29:32,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32 WrapperNode [2024-11-14 04:29:32,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:29:32,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:29:32,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:29:32,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:29:32,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,366 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-14 04:29:32,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:29:32,367 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:29:32,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:29:32,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:29:32,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:29:32,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:29:32,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:29:32,396 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:29:32,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (1/1) ... [2024-11-14 04:29:32,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:29:32,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:32,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:29:32,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:29:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 04:29:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 04:29:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:29:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:29:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:29:32,627 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:29:32,629 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:29:32,779 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-14 04:29:32,779 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:29:32,790 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:29:32,790 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:29:32,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:32 BoogieIcfgContainer [2024-11-14 04:29:32,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:29:32,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:29:32,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:29:32,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:29:32,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:29:30" (1/3) ... [2024-11-14 04:29:32,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b3a86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:29:32, skipping insertion in model container [2024-11-14 04:29:32,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:32" (2/3) ... [2024-11-14 04:29:32,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b3a86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:29:32, skipping insertion in model container [2024-11-14 04:29:32,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:32" (3/3) ... [2024-11-14 04:29:32,803 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_09_bad.i [2024-11-14 04:29:32,820 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:29:32,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_multiply_09_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 04:29:32,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:29:32,916 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;@197247ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:29:32,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:29:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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) [2024-11-14 04:29:32,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 04:29:32,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:32,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:32,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:29:32,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1258159597, now seen corresponding path program 1 times [2024-11-14 04:29:32,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:32,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349309049] [2024-11-14 04:29:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:32,959 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 [2024-11-14 04:29:32,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:32,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:29:32,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:29:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:33,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 04:29:33,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:29:33,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:29:33,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:29:33,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349309049] [2024-11-14 04:29:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349309049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:33,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:33,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:29:33,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796535149] [2024-11-14 04:29:33,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:33,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:29:33,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:29:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:29:33,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:33,292 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:29:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:33,328 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2024-11-14 04:29:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:29:33,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-14 04:29:33,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:33,339 INFO L225 Difference]: With dead ends: 41 [2024-11-14 04:29:33,340 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 04:29:33,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:33,349 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:33,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:29:33,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 04:29:33,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-14 04:29:33,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:29:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-11-14 04:29:33,399 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2024-11-14 04:29:33,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:33,401 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-11-14 04:29:33,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:29:33,402 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-11-14 04:29:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 04:29:33,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:33,405 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:33,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-14 04:29:33,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:29:33,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:29:33,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:33,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1822236216, now seen corresponding path program 1 times [2024-11-14 04:29:33,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:29:33,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054830695] [2024-11-14 04:29:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:33,610 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 [2024-11-14 04:29:33,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:29:33,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:29:33,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 04:29:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:29:33,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:29:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:29:33,808 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 04:29:33,808 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:29:33,810 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 04:29:33,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 04:29:33,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 04:29:34,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:29:34,016 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 04:29:34,044 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:29:34,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:29:34 BoogieIcfgContainer [2024-11-14 04:29:34,048 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:29:34,049 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:29:34,049 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:29:34,049 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:29:34,050 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:32" (3/4) ... [2024-11-14 04:29:34,053 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:29:34,054 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:29:34,055 INFO L158 Benchmark]: Toolchain (without parser) took 3439.05ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 28.2MB in the end (delta: 28.9MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-14 04:29:34,055 INFO L158 Benchmark]: CDTParser took 3.59ms. Allocated memory is still 83.9MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:34,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1682.72ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 49.7MB in the end (delta: 7.4MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2024-11-14 04:29:34,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.76ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 47.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:34,056 INFO L158 Benchmark]: Boogie Preprocessor took 27.37ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 45.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:34,057 INFO L158 Benchmark]: RCFGBuilder took 395.13ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 32.5MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:29:34,057 INFO L158 Benchmark]: TraceAbstraction took 1254.32ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 28.6MB in the end (delta: 3.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2024-11-14 04:29:34,057 INFO L158 Benchmark]: Witness Printer took 5.18ms. Allocated memory is still 83.9MB. Free memory is still 28.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:29:34,059 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.59ms. Allocated memory is still 83.9MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1682.72ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 49.7MB in the end (delta: 7.4MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.76ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 47.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.37ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 45.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 395.13ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 32.5MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1254.32ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 28.6MB in the end (delta: 3.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 5.18ms. Allocated memory is still 83.9MB. Free memory is still 28.2MB. 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_multiply_09_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE \read(GLOBAL_CONST_TRUE) 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] [L1558] COND TRUE data < 0 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] [L1560] data * 2 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: 1560]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 25 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 04:29:34,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2daba7f-7735-4e90-8b24-e9ee7907c5ef/bin/utaipan-verify-sOmjnqqW8E/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