./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 071d7d9f741deeeb2a13eba247971b53a7b68bf854765ddbfdaa91b6a618e28d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:15:10,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:15:10,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 07:15:10,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:15:10,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:15:10,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:15:10,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:15:10,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:15:10,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:15:10,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:15:10,563 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:15:10,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:15:10,564 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:15:10,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:15:10,567 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:15:10,568 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:15:10,568 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:15:10,569 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:15:10,569 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:15:10,569 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:15:10,570 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:15:10,570 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:15:10,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:15:10,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:15:10,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:15:10,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:15:10,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:15:10,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:15:10,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:15:10,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:15:10,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:15:10,574 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:15:10,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:15:10,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:15:10,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:15:10,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:15:10,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:15:10,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:10,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:15:10,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:15:10,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:15:10,578 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:15:10,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:15:10,579 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:15:10,579 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:15:10,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:15:10,579 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071d7d9f741deeeb2a13eba247971b53a7b68bf854765ddbfdaa91b6a618e28d [2024-11-09 07:15:10,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:15:10,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:15:10,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:15:10,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:15:10,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:15:10,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i Unable to find full path for "g++" [2024-11-09 07:15:12,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:15:13,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:15:13,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i [2024-11-09 07:15:13,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data/2a572055c/f509cfebddad4372997e8e69d7d534ac/FLAGd3d21fffb [2024-11-09 07:15:13,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data/2a572055c/f509cfebddad4372997e8e69d7d534ac [2024-11-09 07:15:13,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:15:13,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:15:13,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:15:13,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:15:13,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:15:13,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:15:13" (1/1) ... [2024-11-09 07:15:13,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3092a3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:13, skipping insertion in model container [2024-11-09 07:15:13,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:15:13" (1/1) ... [2024-11-09 07:15:13,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:15:14,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:15:14,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:15:14,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:15:14,962 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:15:14,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14 WrapperNode [2024-11-09 07:15:14,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:15:14,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:15:14,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:15:14,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:15:14,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:14,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,022 INFO L138 Inliner]: procedures = 498, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2024-11-09 07:15:15,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:15:15,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:15:15,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:15:15,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:15:15,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:15:15,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:15:15,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:15:15,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:15:15,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (1/1) ... [2024-11-09 07:15:15,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:15,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:15,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:15:15,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:15:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:15:15,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:15:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:15:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:15:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:15:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:15:15,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:15:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:15:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:15:15,366 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:15:15,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:15:15,595 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-09 07:15:15,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:15:15,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:15:15,863 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:15:15,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:15 BoogieIcfgContainer [2024-11-09 07:15:15,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:15:15,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:15:15,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:15:15,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:15:15,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:15:13" (1/3) ... [2024-11-09 07:15:15,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccfc61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:15, skipping insertion in model container [2024-11-09 07:15:15,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:14" (2/3) ... [2024-11-09 07:15:15,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ccfc61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:15, skipping insertion in model container [2024-11-09 07:15:15,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:15" (3/3) ... [2024-11-09 07:15:15,873 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_67_bad.i [2024-11-09 07:15:15,893 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:15:15,894 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:15:15,956 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:15:15,963 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;@647d1726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:15:15,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:15:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:15:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:15:15,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:15,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:15:15,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:15:15,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash -40823006, now seen corresponding path program 1 times [2024-11-09 07:15:15,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:15,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127489848] [2024-11-09 07:15:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:15,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:15:16,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:15:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:15:16,540 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:15:16,542 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:15:16,543 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:15:16,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:15:16,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:15:16,551 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:15:16,578 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:15:16,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:15:16 BoogieIcfgContainer [2024-11-09 07:15:16,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:15:16,584 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:15:16,584 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:15:16,585 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:15:16,585 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:15" (3/4) ... [2024-11-09 07:15:16,588 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:15:16,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:15:16,590 INFO L158 Benchmark]: Toolchain (without parser) took 3167.81ms. Allocated memory is still 144.7MB. Free memory was 110.2MB in the beginning and 64.8MB in the end (delta: 45.4MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2024-11-09 07:15:16,591 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:15:16,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1540.54ms. Allocated memory is still 144.7MB. Free memory was 109.6MB in the beginning and 95.0MB in the end (delta: 14.6MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. [2024-11-09 07:15:16,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.72ms. Allocated memory is still 144.7MB. Free memory was 95.0MB in the beginning and 92.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:15:16,594 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 144.7MB. Free memory was 92.2MB in the beginning and 90.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:15:16,597 INFO L158 Benchmark]: RCFGBuilder took 804.08ms. Allocated memory is still 144.7MB. Free memory was 90.1MB in the beginning and 102.5MB in the end (delta: -12.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2024-11-09 07:15:16,597 INFO L158 Benchmark]: TraceAbstraction took 716.18ms. Allocated memory is still 144.7MB. Free memory was 102.5MB in the beginning and 64.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-09 07:15:16,599 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 144.7MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:15:16,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1540.54ms. Allocated memory is still 144.7MB. Free memory was 109.6MB in the beginning and 95.0MB in the end (delta: 14.6MB). Peak memory consumption was 59.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.72ms. Allocated memory is still 144.7MB. Free memory was 95.0MB in the beginning and 92.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 144.7MB. Free memory was 92.2MB in the beginning and 90.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 804.08ms. Allocated memory is still 144.7MB. Free memory was 90.1MB in the beginning and 102.5MB in the end (delta: -12.5MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * TraceAbstraction took 716.18ms. Allocated memory is still 144.7MB. Free memory was 102.5MB in the beginning and 64.8MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 144.7MB. Free memory is still 64.8MB. 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: 1573]: 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 1565, overapproximation of bitwiseOr at line 1558. 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); [L1565] 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) [L1565] 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] [L1566] CALL CWE191_Integer_Underflow__int_rand_predec_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_rand_predec_67_structType myStruct; [L1557] data = 0 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1558] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] myStruct.structFirst = data [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_67b_badSink(myStruct) [L1571] EXPR myStruct.structFirst [L1571] int data = myStruct.structFirst; [L1573] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1573]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:15:16,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 071d7d9f741deeeb2a13eba247971b53a7b68bf854765ddbfdaa91b6a618e28d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:15:19,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:15:19,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 07:15:19,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:15:19,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:15:19,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:15:19,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:15:19,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:15:19,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:15:19,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:15:19,284 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:15:19,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:15:19,285 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:15:19,286 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:15:19,288 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:15:19,290 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:15:19,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:15:19,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:15:19,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:15:19,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:15:19,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:15:19,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:15:19,298 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:15:19,298 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:15:19,298 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:15:19,298 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:15:19,299 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:15:19,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:15:19,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:15:19,299 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:15:19,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:15:19,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:15:19,300 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:15:19,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:15:19,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:19,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:15:19,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:15:19,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:15:19,304 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:15:19,304 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:15:19,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:15:19,305 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:15:19,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071d7d9f741deeeb2a13eba247971b53a7b68bf854765ddbfdaa91b6a618e28d [2024-11-09 07:15:19,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:15:19,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:15:19,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:15:19,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:15:19,755 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:15:19,756 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i Unable to find full path for "g++" [2024-11-09 07:15:22,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:15:22,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:15:22,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_67_bad.i [2024-11-09 07:15:22,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data/d5d70b537/603a1d77f1424fc3b2976680f0f49943/FLAG43a373228 [2024-11-09 07:15:22,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/data/d5d70b537/603a1d77f1424fc3b2976680f0f49943 [2024-11-09 07:15:22,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:15:22,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:15:22,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:15:22,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:15:22,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:15:22,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:15:22" (1/1) ... [2024-11-09 07:15:22,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6340c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:22, skipping insertion in model container [2024-11-09 07:15:22,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:15:22" (1/1) ... [2024-11-09 07:15:22,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:15:23,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:15:23,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:15:23,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:15:23,945 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:15:23,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23 WrapperNode [2024-11-09 07:15:23,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:15:23,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:15:23,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:15:23,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:15:23,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:23,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,010 INFO L138 Inliner]: procedures = 503, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-09 07:15:24,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:15:24,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:15:24,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:15:24,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:15:24,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:15:24,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:15:24,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:15:24,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:15:24,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (1/1) ... [2024-11-09 07:15:24,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:15:24,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:24,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:15:24,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:15:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:15:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:15:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:15:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:15:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:15:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:15:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 07:15:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:15:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 07:15:24,347 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:15:24,351 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:15:24,565 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-09 07:15:24,565 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:15:24,583 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:15:24,584 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:15:24,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:24 BoogieIcfgContainer [2024-11-09 07:15:24,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:15:24,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:15:24,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:15:24,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:15:24,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:15:22" (1/3) ... [2024-11-09 07:15:24,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5762642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:24, skipping insertion in model container [2024-11-09 07:15:24,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:15:23" (2/3) ... [2024-11-09 07:15:24,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5762642e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:15:24, skipping insertion in model container [2024-11-09 07:15:24,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:24" (3/3) ... [2024-11-09 07:15:24,596 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_67_bad.i [2024-11-09 07:15:24,614 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:15:24,614 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:15:24,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:15:24,730 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;@22f8dde4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:15:24,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:15:24,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:15:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 07:15:24,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:24,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:24,747 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:15:24,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:24,755 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2024-11-09 07:15:24,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:15:24,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769826186] [2024-11-09 07:15:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:24,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:15:24,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:15:24,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 07:15:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:15:25,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:15:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:15:25,123 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 07:15:25,126 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:15:25,128 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:15:25,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:15:25,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 07:15:25,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:15:25,340 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:15:25,378 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:15:25,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:15:25 BoogieIcfgContainer [2024-11-09 07:15:25,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:15:25,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:15:25,386 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:15:25,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:15:25,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:15:24" (3/4) ... [2024-11-09 07:15:25,390 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:15:25,391 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:15:25,393 INFO L158 Benchmark]: Toolchain (without parser) took 2854.20ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 31.2MB in the beginning and 52.1MB in the end (delta: -20.9MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-11-09 07:15:25,393 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:15:25,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1404.59ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 31.0MB in the beginning and 34.3MB in the end (delta: -3.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-09 07:15:25,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.03ms. Allocated memory is still 79.7MB. Free memory was 34.3MB in the beginning and 31.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:15:25,396 INFO L158 Benchmark]: Boogie Preprocessor took 39.57ms. Allocated memory is still 79.7MB. Free memory was 31.3MB in the beginning and 50.1MB in the end (delta: -18.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2024-11-09 07:15:25,397 INFO L158 Benchmark]: RCFGBuilder took 533.75ms. Allocated memory is still 79.7MB. Free memory was 50.1MB in the beginning and 34.5MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:15:25,398 INFO L158 Benchmark]: TraceAbstraction took 796.66ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 33.7MB in the beginning and 52.7MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:15:25,399 INFO L158 Benchmark]: Witness Printer took 5.63ms. Allocated memory is still 96.5MB. Free memory was 52.7MB in the beginning and 52.1MB in the end (delta: 580.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:15:25,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1404.59ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 31.0MB in the beginning and 34.3MB in the end (delta: -3.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.03ms. Allocated memory is still 79.7MB. Free memory was 34.3MB in the beginning and 31.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.57ms. Allocated memory is still 79.7MB. Free memory was 31.3MB in the beginning and 50.1MB in the end (delta: -18.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * RCFGBuilder took 533.75ms. Allocated memory is still 79.7MB. Free memory was 50.1MB in the beginning and 34.5MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 796.66ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 33.7MB in the beginning and 52.7MB in the end (delta: -19.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.63ms. Allocated memory is still 96.5MB. Free memory was 52.7MB in the beginning and 52.1MB in the end (delta: 580.9kB). Peak memory consumption was 2.1MB. 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: 1573]: 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 1565. 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] [L1565] 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) [L1565] 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] [L1566] CALL CWE191_Integer_Underflow__int_rand_predec_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_rand_predec_67_structType myStruct; [L1557] data = 0 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] 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, myStruct={3:0}] [L1558] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] myStruct.structFirst = data [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_67b_badSink(myStruct) [L1571] EXPR myStruct.structFirst [L1571] int data = myStruct.structFirst; [L1573] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1573]: 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, 22 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=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:15:25,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10838b08-d251-42b8-a2b9-de64118e8967/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample