./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_54_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1 --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 a48bffd8a7308be9046d820e21c7a474ff74f6db027c73c91166d65332900659 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:04:01,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:04:01,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 13:04:01,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:04:01,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:04:01,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:04:01,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:04:01,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:04:01,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:04:01,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:04:01,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:04:01,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:04:01,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:04:01,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:04:01,764 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:04:01,765 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:04:01,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:04:01,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:04:01,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:04:01,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:04:01,766 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_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1 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 -> a48bffd8a7308be9046d820e21c7a474ff74f6db027c73c91166d65332900659 [2024-12-02 13:04:02,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:04:02,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:04:02,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:04:02,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:04:02,013 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:04:02,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_54_bad.i [2024-12-02 13:04:04,641 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/data/7fbf45afe/dc4f2cda45fe42f6967167ef03ce5dd6/FLAG72d00ea34 [2024-12-02 13:04:04,950 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:04:04,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_54_bad.i [2024-12-02 13:04:04,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/data/7fbf45afe/dc4f2cda45fe42f6967167ef03ce5dd6/FLAG72d00ea34 [2024-12-02 13:04:04,981 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/data/7fbf45afe/dc4f2cda45fe42f6967167ef03ce5dd6 [2024-12-02 13:04:04,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:04:04,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:04:04,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:04:04,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:04:04,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:04:04,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:04:04" (1/1) ... [2024-12-02 13:04:04,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea22662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:04, skipping insertion in model container [2024-12-02 13:04:04,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:04:04" (1/1) ... [2024-12-02 13:04:05,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:04:05,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:04:05,607 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:04:05,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:04:05,792 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:04:05,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05 WrapperNode [2024-12-02 13:04:05,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:04:05,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:04:05,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:04:05,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:04:05,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,830 INFO L138 Inliner]: procedures = 501, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-12-02 13:04:05,830 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:04:05,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:04:05,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:04:05,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:04:05,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,846 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 13:04:05,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:04:05,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:04:05,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:04:05,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:04:05,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (1/1) ... [2024-12-02 13:04:05,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:04:05,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:04:05,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:04:05,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:04:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 13:04:05,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 13:04:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:04:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:04:05,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:04:06,011 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:04:06,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:04:06,183 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-12-02 13:04:06,183 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:04:06,192 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:04:06,192 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:04:06,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:06 BoogieIcfgContainer [2024-12-02 13:04:06,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:04:06,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:04:06,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:04:06,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:04:06,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:04:04" (1/3) ... [2024-12-02 13:04:06,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a5f3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:04:06, skipping insertion in model container [2024-12-02 13:04:06,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:04:05" (2/3) ... [2024-12-02 13:04:06,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a5f3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:04:06, skipping insertion in model container [2024-12-02 13:04:06,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:06" (3/3) ... [2024-12-02 13:04:06,201 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_54_bad.i [2024-12-02 13:04:06,216 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:04:06,217 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_rand_multiply_54_bad.i that has 2 procedures, 46 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 13:04:06,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:04:06,273 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;@bb7c710, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:04:06,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 13:04:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 40 states have (on average 1.425) internal successors, (57), 42 states have internal predecessors, (57), 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) [2024-12-02 13:04:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 13:04:06,281 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:04:06,282 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:04:06,282 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 13:04:06,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:04:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash 940864975, now seen corresponding path program 1 times [2024-12-02 13:04:06,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:04:06,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051782674] [2024-12-02 13:04:06,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:04:06,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:04:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:04:06,400 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:04:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:04:06,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 13:04:06,440 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 13:04:06,441 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 13:04:06,442 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 13:04:06,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:04:06,446 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 13:04:06,467 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:04:06,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:04:06 BoogieIcfgContainer [2024-12-02 13:04:06,470 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:04:06,470 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:04:06,470 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:04:06,471 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:04:06,471 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:04:06" (3/4) ... [2024-12-02 13:04:06,471 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 13:04:06,511 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 10. [2024-12-02 13:04:06,554 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:04:06,554 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:04:06,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:04:06,555 INFO L158 Benchmark]: Toolchain (without parser) took 1570.66ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 63.8MB in the end (delta: 51.9MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-12-02 13:04:06,555 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:04:06,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 808.19ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 106.6MB in the end (delta: 9.0MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-12-02 13:04:06,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.62ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 104.0MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:04:06,555 INFO L158 Benchmark]: Boogie Preprocessor took 23.83ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:04:06,556 INFO L158 Benchmark]: RCFGBuilder took 337.29ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 86.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:04:06,556 INFO L158 Benchmark]: TraceAbstraction took 275.46ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 68.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:04:06,556 INFO L158 Benchmark]: Witness Printer took 83.63ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 63.8MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:04:06,557 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 808.19ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 106.6MB in the end (delta: 9.0MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.62ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 104.0MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.83ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 101.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.29ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 86.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 275.46ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 68.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 83.63ms. Allocated memory is still 142.6MB. Free memory was 68.8MB in the beginning and 63.8MB in the end (delta: 5.0MB). 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 - CounterExampleResult [Line: 1583]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_multiply_54_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] 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] [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_54b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_multiply_54c_badSink(data) [L1572] CALL CWE191_Integer_Underflow__int_rand_multiply_54d_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_rand_multiply_54e_badSink(data) [L1581] 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] [L1583] 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: 1583]: 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, 46 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=46occurred 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, 16 NumberOfCodeBlocks, 16 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 13:04:06,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304820ff-cfcc-4ae4-aad4-61de1bc6f6ec/bin/uautomizer-verify-84ZbGMXZE1/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)