./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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_251014a8-7f17-4031-9f73-0e5749893e41/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 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:10:24,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:10:24,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 07:10:24,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:10:24,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:10:24,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:10:24,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:10:24,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:10:24,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:10:24,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:10:24,330 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:10:24,331 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:10:24,331 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:10:24,332 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:10:24,332 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:10:24,333 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:10:24,333 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:10:24,334 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:10:24,334 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:10:24,335 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:10:24,335 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:10:24,336 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:10:24,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:10:24,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:10:24,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:10:24,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:10:24,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:10:24,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:10:24,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:10:24,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:10:24,341 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:10:24,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:10:24,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:10:24,343 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:10:24,344 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:10:24,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:10:24,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:10:24,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:24,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:10:24,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:10:24,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:10:24,347 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:10:24,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:10:24,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:10:24,349 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:10:24,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:10:24,349 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_251014a8-7f17-4031-9f73-0e5749893e41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 [2024-11-09 07:10:24,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:10:24,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:10:24,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:10:24,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:10:24,722 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:10:24,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i Unable to find full path for "g++" [2024-11-09 07:10:27,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:10:27,768 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:10:27,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-11-09 07:10:27,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data/6f1083047/eb6bfad2fc0e4f5f968ae2e75b7ea594/FLAGced5b7d34 [2024-11-09 07:10:27,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data/6f1083047/eb6bfad2fc0e4f5f968ae2e75b7ea594 [2024-11-09 07:10:27,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:10:27,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:10:27,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:27,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:10:27,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:10:27,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:27" (1/1) ... [2024-11-09 07:10:27,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9809dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:27, skipping insertion in model container [2024-11-09 07:10:27,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:27" (1/1) ... [2024-11-09 07:10:27,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:10:29,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:29,376 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:10:29,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:29,735 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:10:29,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29 WrapperNode [2024-11-09 07:10:29,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:29,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:29,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:10:29,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:10:29,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,882 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-09 07:10:29,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:29,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:10:29,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:10:29,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:10:29,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:10:29,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:10:29,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:10:29,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:10:29,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (1/1) ... [2024-11-09 07:10:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:10:30,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:10:30,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:10:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:10:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:10:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:10:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:10:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:10:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:10:30,244 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:10:30,247 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:10:30,431 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-09 07:10:30,431 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:10:30,499 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:10:30,499 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:10:30,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:30 BoogieIcfgContainer [2024-11-09 07:10:30,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:10:30,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:10:30,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:10:30,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:10:30,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:10:27" (1/3) ... [2024-11-09 07:10:30,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d0243f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:30, skipping insertion in model container [2024-11-09 07:10:30,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:29" (2/3) ... [2024-11-09 07:10:30,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d0243f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:30, skipping insertion in model container [2024-11-09 07:10:30,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:30" (3/3) ... [2024-11-09 07:10:30,521 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-11-09 07:10:30,547 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:10:30,547 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:10:30,634 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:30,647 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;@69e98fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:30,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:10:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:10:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 07:10:30,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:30,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:30,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:10:30,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:30,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1943872179, now seen corresponding path program 1 times [2024-11-09 07:10:30,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:30,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66834944] [2024-11-09 07:10:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:31,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:10:31,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66834944] [2024-11-09 07:10:31,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66834944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:31,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:31,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:31,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937149203] [2024-11-09 07:10:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:31,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:31,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:10:31,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:31,208 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:10:31,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:31,269 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2024-11-09 07:10:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-11-09 07:10:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:31,282 INFO L225 Difference]: With dead ends: 16 [2024-11-09 07:10:31,282 INFO L226 Difference]: Without dead ends: 12 [2024-11-09 07:10:31,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:31,291 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:31,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:10:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-09 07:10:31,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-09 07:10:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 07:10:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-11-09 07:10:31,341 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 8 [2024-11-09 07:10:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:31,343 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-09 07:10:31,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:10:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-11-09 07:10:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 07:10:31,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:31,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:31,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:10:31,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:10:31,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:31,349 INFO L85 PathProgramCache]: Analyzing trace with hash 130495463, now seen corresponding path program 1 times [2024-11-09 07:10:31,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:31,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515180670] [2024-11-09 07:10:31,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:31,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:31,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:31,483 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:10:31,485 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:31,488 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:10:31,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:10:31,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:10:31,496 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 07:10:31,524 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:10:31,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:10:31 BoogieIcfgContainer [2024-11-09 07:10:31,534 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:10:31,535 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:10:31,535 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:10:31,536 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:10:31,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:30" (3/4) ... [2024-11-09 07:10:31,541 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:10:31,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:10:31,544 INFO L158 Benchmark]: Toolchain (without parser) took 3699.66ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 128.9MB in the beginning and 133.0MB in the end (delta: -4.1MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-09 07:10:31,545 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 165.7MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:31,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1889.37ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 128.8MB in the end (delta: 9.8kB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2024-11-09 07:10:31,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 144.84ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 128.8MB in the beginning and 182.3MB in the end (delta: -53.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-11-09 07:10:31,550 INFO L158 Benchmark]: Boogie Preprocessor took 55.85ms. Allocated memory is still 218.1MB. Free memory was 182.3MB in the beginning and 181.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:31,551 INFO L158 Benchmark]: RCFGBuilder took 561.73ms. Allocated memory is still 218.1MB. Free memory was 181.2MB in the beginning and 165.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:10:31,552 INFO L158 Benchmark]: TraceAbstraction took 1027.24ms. Allocated memory is still 218.1MB. Free memory was 164.5MB in the beginning and 134.0MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-09 07:10:31,553 INFO L158 Benchmark]: Witness Printer took 7.72ms. Allocated memory is still 218.1MB. Free memory was 134.0MB in the beginning and 133.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:31,559 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 165.7MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1889.37ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 128.8MB in the end (delta: 9.8kB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 144.84ms. Allocated memory was 165.7MB in the beginning and 218.1MB in the end (delta: 52.4MB). Free memory was 128.8MB in the beginning and 182.3MB in the end (delta: -53.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.85ms. Allocated memory is still 218.1MB. Free memory was 182.3MB in the beginning and 181.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 561.73ms. Allocated memory is still 218.1MB. Free memory was 181.2MB in the beginning and 165.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1027.24ms. Allocated memory is still 218.1MB. Free memory was 164.5MB in the beginning and 134.0MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 7.72ms. Allocated memory is still 218.1MB. Free memory was 134.0MB in the beginning and 133.0MB in the end (delta: 1.0MB). 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 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1556. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] ++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: 1568]: 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 10 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:10:31,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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_251014a8-7f17-4031-9f73-0e5749893e41/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 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:10:34,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:10:34,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 07:10:34,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:10:34,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:10:34,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:10:34,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:10:34,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:10:34,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:10:34,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:10:34,665 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:10:34,665 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:10:34,666 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:10:34,666 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:10:34,666 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:10:34,667 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:10:34,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:10:34,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:10:34,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:10:34,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:10:34,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:10:34,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:10:34,671 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:10:34,671 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:10:34,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:10:34,672 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:10:34,673 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:10:34,673 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:10:34,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:10:34,674 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:10:34,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:10:34,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:10:34,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:10:34,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:10:34,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:34,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:10:34,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:10:34,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:10:34,678 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:10:34,678 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:10:34,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:10:34,679 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:10:34,683 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_251014a8-7f17-4031-9f73-0e5749893e41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 [2024-11-09 07:10:35,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:10:35,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:10:35,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:10:35,218 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:10:35,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:10:35,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i Unable to find full path for "g++" [2024-11-09 07:10:37,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:10:38,341 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:10:38,342 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-11-09 07:10:38,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data/d92f1987b/90cdb9a436344889bfab771024307753/FLAG3a8634233 [2024-11-09 07:10:38,425 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/data/d92f1987b/90cdb9a436344889bfab771024307753 [2024-11-09 07:10:38,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:10:38,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:10:38,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:38,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:10:38,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:10:38,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:38" (1/1) ... [2024-11-09 07:10:38,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc03989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:38, skipping insertion in model container [2024-11-09 07:10:38,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:10:38" (1/1) ... [2024-11-09 07:10:38,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:10:40,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:40,204 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:10:40,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:10:40,616 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:10:40,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40 WrapperNode [2024-11-09 07:10:40,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:10:40,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:40,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:10:40,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:10:40,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,691 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-09 07:10:40,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:10:40,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:10:40,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:10:40,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:10:40,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:10:40,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:10:40,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:10:40,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:10:40,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (1/1) ... [2024-11-09 07:10:40,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:10:40,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:10:40,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:10:40,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:10:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 07:10:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 07:10:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:10:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:10:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:10:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:10:41,074 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:10:41,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:10:41,330 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-09 07:10:41,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:10:41,351 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:10:41,351 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:10:41,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:41 BoogieIcfgContainer [2024-11-09 07:10:41,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:10:41,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:10:41,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:10:41,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:10:41,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:10:38" (1/3) ... [2024-11-09 07:10:41,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c00ccea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:41, skipping insertion in model container [2024-11-09 07:10:41,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:10:40" (2/3) ... [2024-11-09 07:10:41,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c00ccea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:10:41, skipping insertion in model container [2024-11-09 07:10:41,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:41" (3/3) ... [2024-11-09 07:10:41,368 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-11-09 07:10:41,392 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:10:41,392 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 07:10:41,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:41,487 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;@5a345758, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:41,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 07:10:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:10:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 07:10:41,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:41,509 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:41,510 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:10:41,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash 756143915, now seen corresponding path program 1 times [2024-11-09 07:10:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:10:41,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670072453] [2024-11-09 07:10:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:41,548 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 07:10:41,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:10:41,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 07:10:41,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 07:10:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:41,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:10:41,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:10:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:41,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:10:41,851 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:10:41,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670072453] [2024-11-09 07:10:41,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670072453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:41,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:41,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 07:10:41,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470697696] [2024-11-09 07:10:41,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:41,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:10:41,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:10:41,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:10:41,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:10:41,907 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:10:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:41,954 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-09 07:10:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:10:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-09 07:10:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:41,967 INFO L225 Difference]: With dead ends: 24 [2024-11-09 07:10:41,968 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 07:10:41,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:10:41,978 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:41,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:10:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 07:10:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 07:10:42,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 07:10:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-09 07:10:42,031 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2024-11-09 07:10:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:42,033 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-09 07:10:42,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:10:42,034 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 07:10:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 07:10:42,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:42,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:42,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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)] Forceful destruction successful, exit code 0 [2024-11-09 07:10:42,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 07:10:42,238 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 07:10:42,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1965624943, now seen corresponding path program 1 times [2024-11-09 07:10:42,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:10:42,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896924628] [2024-11-09 07:10:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:42,244 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 07:10:42,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:10:42,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 07:10:42,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 (3)] Waiting until timeout for monitored process [2024-11-09 07:10:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:42,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:42,499 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 07:10:42,499 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:42,502 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 07:10:42,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 07:10:42,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:10:42,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/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 07:10:42,717 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 07:10:42,751 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:10:42,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:10:42 BoogieIcfgContainer [2024-11-09 07:10:42,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:10:42,757 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:10:42,757 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:10:42,757 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:10:42,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:10:41" (3/4) ... [2024-11-09 07:10:42,761 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:10:42,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:10:42,764 INFO L158 Benchmark]: Toolchain (without parser) took 4330.79ms. Allocated memory was 73.4MB in the beginning and 117.4MB in the end (delta: 44.0MB). Free memory was 45.6MB in the beginning and 71.1MB in the end (delta: -25.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,765 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 105.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2182.46ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 45.4MB in the beginning and 56.4MB in the end (delta: -11.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.74ms. Allocated memory is still 96.5MB. Free memory was 56.4MB in the beginning and 53.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,767 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 51.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,768 INFO L158 Benchmark]: RCFGBuilder took 621.24ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 61.3MB in the end (delta: -9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,769 INFO L158 Benchmark]: TraceAbstraction took 1399.78ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 71.1MB in the end (delta: -10.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-09 07:10:42,769 INFO L158 Benchmark]: Witness Printer took 6.44ms. Allocated memory is still 117.4MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:10:42,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 105.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2182.46ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 45.4MB in the beginning and 56.4MB in the end (delta: -11.0MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.74ms. Allocated memory is still 96.5MB. Free memory was 56.4MB in the beginning and 53.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 96.5MB. Free memory was 53.5MB in the beginning and 51.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 621.24ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 61.3MB in the end (delta: -9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1399.78ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 71.1MB in the end (delta: -10.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 6.44ms. Allocated memory is still 117.4MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1556. 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] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_18_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] ++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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 07:10:42,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_251014a8-7f17-4031-9f73-0e5749893e41/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample