./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 8d9d1a0fafec05324327623425bba944144beaa272ae23d2023290f81e81057c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:17:39,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:17:39,944 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 06:17:39,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:17:39,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:17:39,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:17:39,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:17:39,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:17:39,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:17:39,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:17:39,995 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:17:39,995 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:17:39,996 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:17:39,996 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:17:39,999 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:17:39,999 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:17:40,000 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:17:40,000 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:17:40,000 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:17:40,001 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:17:40,001 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:17:40,005 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:17:40,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:17:40,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:17:40,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:17:40,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:17:40,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:17:40,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:17:40,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:17:40,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:17:40,011 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:17:40,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:17:40,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:17:40,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:17:40,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:17:40,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:17:40,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:17:40,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:40,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:17:40,015 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:17:40,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:17:40,015 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:17:40,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:17:40,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:17:40,017 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:17:40,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:17:40,017 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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d9d1a0fafec05324327623425bba944144beaa272ae23d2023290f81e81057c [2024-11-09 06:17:40,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:17:40,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:17:40,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:17:40,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:17:40,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:17:40,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i Unable to find full path for "g++" [2024-11-09 06:17:42,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:17:42,914 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:17:42,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i [2024-11-09 06:17:42,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data/fe6f550a2/1dc0aafa1fa04f4e9972c71f081dbca1/FLAGaad086aea [2024-11-09 06:17:42,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data/fe6f550a2/1dc0aafa1fa04f4e9972c71f081dbca1 [2024-11-09 06:17:42,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:17:42,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:17:42,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:42,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:17:42,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:17:42,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:42" (1/1) ... [2024-11-09 06:17:42,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc2c5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:42, skipping insertion in model container [2024-11-09 06:17:42,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:42" (1/1) ... [2024-11-09 06:17:43,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:17:44,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:44,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:17:44,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:44,578 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:17:44,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44 WrapperNode [2024-11-09 06:17:44,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:44,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:44,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:17:44,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:17:44,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,673 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-09 06:17:44,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:44,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:17:44,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:17:44,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:17:44,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:17:44,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:17:44,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:17:44,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:17:44,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (1/1) ... [2024-11-09 06:17:44,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:44,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:44,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:17:44,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:17:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:17:44,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:17:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:17:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:17:44,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:17:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:17:45,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:17:45,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:17:45,162 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 06:17:45,163 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:17:45,213 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:17:45,217 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:17:45,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:45 BoogieIcfgContainer [2024-11-09 06:17:45,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:17:45,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:17:45,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:17:45,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:17:45,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:17:42" (1/3) ... [2024-11-09 06:17:45,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2796b9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:45, skipping insertion in model container [2024-11-09 06:17:45,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:44" (2/3) ... [2024-11-09 06:17:45,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2796b9a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:45, skipping insertion in model container [2024-11-09 06:17:45,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:45" (3/3) ... [2024-11-09 06:17:45,236 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i [2024-11-09 06:17:45,258 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:17:45,259 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:17:45,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:17:45,340 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;@3a419113, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:17:45,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:17:45,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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 06:17:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:17:45,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:45,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:45,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:17:45,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:45,364 INFO L85 PathProgramCache]: Analyzing trace with hash -830395070, now seen corresponding path program 1 times [2024-11-09 06:17:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:45,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547421297] [2024-11-09 06:17:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:45,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:45,669 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 06:17:45,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:45,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547421297] [2024-11-09 06:17:45,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547421297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:45,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:45,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:17:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349606544] [2024-11-09 06:17:45,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:45,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:17:45,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:45,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:17:45,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:45,703 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 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, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 06:17:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:45,755 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2024-11-09 06:17:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:17:45,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2024-11-09 06:17:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:45,768 INFO L225 Difference]: With dead ends: 32 [2024-11-09 06:17:45,769 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 06:17:45,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 06:17:45,776 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:45,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 17 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:17:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 06:17:45,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 06:17:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:17:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-11-09 06:17:45,829 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2024-11-09 06:17:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:45,832 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-11-09 06:17:45,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 06:17:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-11-09 06:17:45,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:17:45,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:45,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:45,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:17:45,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:17:45,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:45,838 INFO L85 PathProgramCache]: Analyzing trace with hash 527980967, now seen corresponding path program 1 times [2024-11-09 06:17:45,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:45,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791996280] [2024-11-09 06:17:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:45,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:17:45,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:17:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:17:45,995 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:17:45,996 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:17:46,000 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:17:46,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:17:46,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:17:46,009 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:17:46,042 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:17:46,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:17:46 BoogieIcfgContainer [2024-11-09 06:17:46,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:17:46,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:17:46,052 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:17:46,053 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:17:46,054 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:45" (3/4) ... [2024-11-09 06:17:46,057 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:17:46,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:17:46,060 INFO L158 Benchmark]: Toolchain (without parser) took 3080.63ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 110.9MB in the beginning and 115.5MB in the end (delta: -4.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-11-09 06:17:46,060 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:46,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1598.83ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 110.9MB in the beginning and 170.1MB in the end (delta: -59.2MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-11-09 06:17:46,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.77ms. Allocated memory is still 216.0MB. Free memory was 170.1MB in the beginning and 166.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:17:46,064 INFO L158 Benchmark]: Boogie Preprocessor took 44.59ms. Allocated memory is still 216.0MB. Free memory was 166.8MB in the beginning and 164.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:17:46,066 INFO L158 Benchmark]: RCFGBuilder took 498.22ms. Allocated memory is still 216.0MB. Free memory was 164.8MB in the beginning and 149.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:17:46,066 INFO L158 Benchmark]: TraceAbstraction took 824.51ms. Allocated memory is still 216.0MB. Free memory was 149.1MB in the beginning and 115.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 06:17:46,067 INFO L158 Benchmark]: Witness Printer took 8.08ms. Allocated memory is still 216.0MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:46,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1598.83ms. Allocated memory was 144.7MB in the beginning and 216.0MB in the end (delta: 71.3MB). Free memory was 110.9MB in the beginning and 170.1MB in the end (delta: -59.2MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.77ms. Allocated memory is still 216.0MB. Free memory was 170.1MB in the beginning and 166.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.59ms. Allocated memory is still 216.0MB. Free memory was 166.8MB in the beginning and 164.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.22ms. Allocated memory is still 216.0MB. Free memory was 164.8MB in the beginning and 149.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 824.51ms. Allocated memory is still 216.0MB. Free memory was 149.1MB in the beginning and 115.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 8.08ms. Allocated memory is still 216.0MB. Free memory is still 115.5MB. 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of large string literal at line 1579, overapproximation of fgets at line 1557. 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); [L1548] static int staticFive = 5; [L1579] 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, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] 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, staticFive=5] [L1580] CALL CWE191_Integer_Underflow__int_fgets_multiply_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] 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, staticFive=5] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1567] COND TRUE staticFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1569] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1571] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - UnprovableResult [Line: 1571]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 17 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 06:17:46,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 8d9d1a0fafec05324327623425bba944144beaa272ae23d2023290f81e81057c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:17:48,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:17:48,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 06:17:48,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:17:48,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:17:48,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:17:48,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:17:48,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:17:48,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:17:48,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:17:48,805 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:17:48,806 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:17:48,806 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:17:48,807 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:17:48,809 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:17:48,810 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:17:48,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:17:48,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:17:48,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:17:48,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:17:48,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:17:48,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:17:48,817 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:17:48,817 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:17:48,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:17:48,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:17:48,818 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:17:48,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:17:48,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:17:48,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:17:48,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:17:48,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:17:48,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:17:48,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:17:48,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:48,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:17:48,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:17:48,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:17:48,824 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:17:48,825 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:17:48,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:17:48,826 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:17:48,826 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_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d9d1a0fafec05324327623425bba944144beaa272ae23d2023290f81e81057c [2024-11-09 06:17:49,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:17:49,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:17:49,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:17:49,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:17:49,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:17:49,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i Unable to find full path for "g++" [2024-11-09 06:17:51,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:17:51,823 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:17:51,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i [2024-11-09 06:17:51,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data/ab1006462/a9832773d7b54261a17c5082f848d922/FLAG1ddb298c8 [2024-11-09 06:17:51,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/data/ab1006462/a9832773d7b54261a17c5082f848d922 [2024-11-09 06:17:51,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:17:51,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:17:51,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:51,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:17:51,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:17:51,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:51" (1/1) ... [2024-11-09 06:17:51,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520cca7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:51, skipping insertion in model container [2024-11-09 06:17:51,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:17:51" (1/1) ... [2024-11-09 06:17:51,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:17:53,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:53,432 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:17:53,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:17:53,678 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:17:53,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53 WrapperNode [2024-11-09 06:17:53,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:17:53,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:53,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:17:53,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:17:53,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,717 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,740 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-09 06:17:53,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:17:53,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:17:53,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:17:53,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:17:53,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:17:53,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:17:53,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:17:53,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:17:53,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (1/1) ... [2024-11-09 06:17:53,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:17:53,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:53,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:17:53,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:17:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 06:17:53,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 06:17:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:17:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:17:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:17:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:17:54,057 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:17:54,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:17:54,225 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 06:17:54,225 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:17:54,243 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:17:54,243 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:17:54,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:54 BoogieIcfgContainer [2024-11-09 06:17:54,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:17:54,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:17:54,250 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:17:54,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:17:54,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:17:51" (1/3) ... [2024-11-09 06:17:54,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fe5d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:54, skipping insertion in model container [2024-11-09 06:17:54,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:17:53" (2/3) ... [2024-11-09 06:17:54,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fe5d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:17:54, skipping insertion in model container [2024-11-09 06:17:54,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:54" (3/3) ... [2024-11-09 06:17:54,261 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_07_bad.i [2024-11-09 06:17:54,284 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:17:54,285 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:17:54,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:17:54,380 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;@56a1738a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:17:54,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:17:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 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 06:17:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:17:54,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:54,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:54,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:17:54,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1593866737, now seen corresponding path program 1 times [2024-11-09 06:17:54,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:17:54,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658225327] [2024-11-09 06:17:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:54,425 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 06:17:54,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:17:54,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:54,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:54,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:17:54,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:17:54,804 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 06:17:54,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:17:54,806 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:17:54,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658225327] [2024-11-09 06:17:54,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658225327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:54,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:54,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:17:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501594481] [2024-11-09 06:17:54,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:54,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:17:54,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:17:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:17:54,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:54,855 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 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, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:17:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:54,893 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2024-11-09 06:17:54,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:17:54,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-09 06:17:54,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:54,905 INFO L225 Difference]: With dead ends: 43 [2024-11-09 06:17:54,905 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 06:17:54,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:54,914 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:54,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 28 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:17:54,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 06:17:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-09 06:17:54,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 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 06:17:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-09 06:17:54,959 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2024-11-09 06:17:54,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:54,960 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-09 06:17:54,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:17:54,961 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-09 06:17:54,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:17:54,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:54,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:54,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:55,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:55,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:17:55,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:55,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1271116596, now seen corresponding path program 1 times [2024-11-09 06:17:55,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:17:55,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575958851] [2024-11-09 06:17:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:55,170 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 06:17:55,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:17:55,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:55,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:17:55,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:17:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:17:55,404 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:17:55,404 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:17:55,407 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:17:55,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:17:55,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:55,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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 06:17:55,614 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:17:55,638 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:17:55,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:17:55 BoogieIcfgContainer [2024-11-09 06:17:55,642 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:17:55,643 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:17:55,643 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:17:55,644 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:17:55,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:17:54" (3/4) ... [2024-11-09 06:17:55,647 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:17:55,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:17:55,649 INFO L158 Benchmark]: Toolchain (without parser) took 3752.99ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 51.7MB in the beginning and 35.6MB in the end (delta: 16.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-11-09 06:17:55,650 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 58.7MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 73.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:55,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1779.44ms. Allocated memory is still 73.4MB. Free memory was 51.5MB in the beginning and 33.3MB in the end (delta: 18.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2024-11-09 06:17:55,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.50ms. Allocated memory is still 73.4MB. Free memory was 33.3MB in the beginning and 30.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:17:55,652 INFO L158 Benchmark]: Boogie Preprocessor took 32.99ms. Allocated memory is still 73.4MB. Free memory was 30.4MB in the beginning and 28.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:17:55,653 INFO L158 Benchmark]: RCFGBuilder took 470.31ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 28.2MB in the beginning and 48.9MB in the end (delta: -20.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-11-09 06:17:55,653 INFO L158 Benchmark]: TraceAbstraction took 1393.25ms. Allocated memory is still 90.2MB. Free memory was 48.2MB in the beginning and 36.1MB in the end (delta: 12.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-09 06:17:55,654 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 90.2MB. Free memory was 36.1MB in the beginning and 35.6MB in the end (delta: 452.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:17:55,657 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 58.7MB. Free memory was 35.0MB in the beginning and 35.0MB in the end (delta: 73.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1779.44ms. Allocated memory is still 73.4MB. Free memory was 51.5MB in the beginning and 33.3MB in the end (delta: 18.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.50ms. Allocated memory is still 73.4MB. Free memory was 33.3MB in the beginning and 30.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.99ms. Allocated memory is still 73.4MB. Free memory was 30.4MB in the beginning and 28.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.31ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 28.2MB in the beginning and 48.9MB in the end (delta: -20.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1393.25ms. Allocated memory is still 90.2MB. Free memory was 48.2MB in the beginning and 36.1MB in the end (delta: 12.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 90.2MB. Free memory was 36.1MB in the beginning and 35.6MB in the end (delta: 452.2kB). 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of large string literal at line 1579, overapproximation of fgets at line 1557. 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); [L1548] static int staticFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1579] 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, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] 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, staticFive=5] [L1580] CALL CWE191_Integer_Underflow__int_fgets_multiply_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] 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, staticFive=5] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1567] COND TRUE staticFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1569] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1571] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - UnprovableResult [Line: 1571]: 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, 26 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, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 28 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:17:55,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5b36b05-2cb4-4264-9e72-8bb2e1b49c7c/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