./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_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_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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_64a06ea8-ec19-443c-9130-6db6fca13244/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 dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:57:55,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:57:56,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 05:57:56,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:57:56,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:57:56,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:57:56,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:57:56,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:57:56,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:57:56,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:57:56,056 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:57:56,056 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:57:56,056 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:57:56,057 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:57:56,060 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:57:56,060 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:57:56,061 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:57:56,062 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:57:56,062 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:57:56,063 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:57:56,063 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:57:56,067 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:57:56,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:57:56,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:57:56,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:57:56,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:57:56,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:57:56,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:57:56,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:57:56,072 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:57:56,072 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:57:56,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:57:56,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:57:56,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:57:56,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:57:56,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:57:56,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:57:56,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:57:56,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:57:56,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:57:56,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:57:56,077 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:57:56,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:57:56,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:57:56,078 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:57:56,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:57:56,078 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_64a06ea8-ec19-443c-9130-6db6fca13244/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 [2024-11-09 05:57:56,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:57:56,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:57:56,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:57:56,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:57:56,439 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:57:56,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i Unable to find full path for "g++" [2024-11-09 05:57:58,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:57:58,836 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:57:58,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2024-11-09 05:57:58,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data/c2d59a366/40a148a9fd184e4894cc85f19b966d56/FLAG9e1c12c84 [2024-11-09 05:57:58,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data/c2d59a366/40a148a9fd184e4894cc85f19b966d56 [2024-11-09 05:57:58,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:57:58,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:57:58,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:57:58,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:57:58,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:57:58,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:57:58" (1/1) ... [2024-11-09 05:57:58,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3177628d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:57:58, skipping insertion in model container [2024-11-09 05:57:58,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:57:58" (1/1) ... [2024-11-09 05:57:58,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:58:00,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:58:00,280 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:58:00,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:58:00,579 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:58:00,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00 WrapperNode [2024-11-09 05:58:00,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:58:00,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:58:00,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:58:00,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:58:00,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,642 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2024-11-09 05:58:00,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:58:00,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:58:00,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:58:00,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:58:00,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:58:00,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:58:00,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:58:00,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:58:00,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (1/1) ... [2024-11-09 05:58:00,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:58:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:00,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:58:00,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:58:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 05:58:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 05:58:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:58:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:58:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:58:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:58:00,919 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:58:00,924 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:58:01,081 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-09 05:58:01,081 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:58:01,144 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:58:01,144 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:58:01,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:58:01 BoogieIcfgContainer [2024-11-09 05:58:01,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:58:01,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:58:01,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:58:01,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:58:01,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:57:58" (1/3) ... [2024-11-09 05:58:01,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a27894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:58:01, skipping insertion in model container [2024-11-09 05:58:01,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:00" (2/3) ... [2024-11-09 05:58:01,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a27894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:58:01, skipping insertion in model container [2024-11-09 05:58:01,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:58:01" (3/3) ... [2024-11-09 05:58:01,163 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2024-11-09 05:58:01,185 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:58:01,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:58:01,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:58:01,248 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;@6dbb67bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:58:01,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:58:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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 05:58:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:58:01,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:01,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:01,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:58:01,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:01,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1855380540, now seen corresponding path program 1 times [2024-11-09 05:58:01,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:01,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920127049] [2024-11-09 05:58:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:01,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:01,494 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 05:58:01,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:01,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920127049] [2024-11-09 05:58:01,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920127049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:01,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:01,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:58:01,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491446684] [2024-11-09 05:58:01,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:01,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:58:01,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:01,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:58:01,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:58:01,533 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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, 2 states have (on average 3.0) internal successors, (6), 2 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 05:58:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:01,565 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-11-09 05:58:01,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:58:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 05:58:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:01,575 INFO L225 Difference]: With dead ends: 30 [2024-11-09 05:58:01,575 INFO L226 Difference]: Without dead ends: 15 [2024-11-09 05:58:01,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 05:58:01,582 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:01,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:58:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-09 05:58:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-09 05:58:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 05:58:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-11-09 05:58:01,619 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 8 [2024-11-09 05:58:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:01,621 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-11-09 05:58:01,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 05:58:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-11-09 05:58:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 05:58:01,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:01,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:01,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:58:01,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:58:01,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash -651315523, now seen corresponding path program 1 times [2024-11-09 05:58:01,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:01,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357561348] [2024-11-09 05:58:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:01,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:01,853 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 05:58:01,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:58:01,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357561348] [2024-11-09 05:58:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357561348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:01,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:58:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231803342] [2024-11-09 05:58:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:01,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:58:01,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:58:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:58:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:58:01,861 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 05:58:01,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:01,880 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-11-09 05:58:01,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:58:01,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2024-11-09 05:58:01,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:01,881 INFO L225 Difference]: With dead ends: 15 [2024-11-09 05:58:01,882 INFO L226 Difference]: Without dead ends: 14 [2024-11-09 05:58:01,882 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 05:58:01,883 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:58:01,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:58:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-09 05:58:01,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-09 05:58:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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 05:58:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-09 05:58:01,889 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2024-11-09 05:58:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:01,889 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-09 05:58:01,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 05:58:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-09 05:58:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:58:01,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:01,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:01,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:58:01,891 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:58:01,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1284055340, now seen corresponding path program 1 times [2024-11-09 05:58:01,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:58:01,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060441199] [2024-11-09 05:58:01,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:01,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:58:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:58:01,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:58:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:58:01,979 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:58:01,980 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:58:01,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 05:58:01,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 05:58:01,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:58:01,987 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 05:58:02,013 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:58:02,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:58:02 BoogieIcfgContainer [2024-11-09 05:58:02,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:58:02,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:58:02,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:58:02,019 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:58:02,019 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:58:01" (3/4) ... [2024-11-09 05:58:02,022 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:58:02,023 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:58:02,024 INFO L158 Benchmark]: Toolchain (without parser) took 3139.21ms. Allocated memory is still 148.9MB. Free memory was 105.8MB in the beginning and 64.8MB in the end (delta: 41.0MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2024-11-09 05:58:02,024 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:58:02,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1693.92ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 76.2MB in the end (delta: 29.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2024-11-09 05:58:02,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.29ms. Allocated memory is still 148.9MB. Free memory was 76.2MB in the beginning and 73.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:58:02,026 INFO L158 Benchmark]: Boogie Preprocessor took 26.90ms. Allocated memory is still 148.9MB. Free memory was 73.4MB in the beginning and 71.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:58:02,027 INFO L158 Benchmark]: RCFGBuilder took 478.26ms. Allocated memory is still 148.9MB. Free memory was 71.9MB in the beginning and 109.4MB in the end (delta: -37.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 05:58:02,027 INFO L158 Benchmark]: TraceAbstraction took 866.73ms. Allocated memory is still 148.9MB. Free memory was 108.1MB in the beginning and 65.3MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-09 05:58:02,028 INFO L158 Benchmark]: Witness Printer took 5.78ms. Allocated memory is still 148.9MB. Free memory was 65.3MB in the beginning and 64.8MB in the end (delta: 516.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:58:02,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1693.92ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 76.2MB in the end (delta: 29.5MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.29ms. Allocated memory is still 148.9MB. Free memory was 76.2MB in the beginning and 73.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.90ms. Allocated memory is still 148.9MB. Free memory was 73.4MB in the beginning and 71.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.26ms. Allocated memory is still 148.9MB. Free memory was 71.9MB in the beginning and 109.4MB in the end (delta: -37.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 866.73ms. Allocated memory is still 148.9MB. Free memory was 108.1MB in the beginning and 65.3MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.78ms. Allocated memory is still 148.9MB. Free memory was 65.3MB in the beginning and 64.8MB in the end (delta: 516.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: 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 1580, 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_16_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 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) [L1567] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] ++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: 1570]: 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 28 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 05:58:02,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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_64a06ea8-ec19-443c-9130-6db6fca13244/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 dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:58:04,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:58:04,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 05:58:04,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:58:04,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:58:04,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:58:04,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:58:04,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:58:04,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:58:04,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:58:04,737 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:58:04,738 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:58:04,738 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:58:04,742 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:58:04,742 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:58:04,743 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:58:04,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:58:04,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:58:04,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:58:04,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:58:04,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:58:04,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:58:04,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:58:04,747 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:58:04,747 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:58:04,747 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:58:04,748 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:58:04,748 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:58:04,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:58:04,749 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:58:04,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:58:04,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:58:04,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:58:04,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:58:04,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:58:04,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:58:04,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:58:04,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:58:04,753 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:58:04,753 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:58:04,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:58:04,755 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:58:04,755 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_64a06ea8-ec19-443c-9130-6db6fca13244/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 [2024-11-09 05:58:05,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:58:05,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:58:05,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:58:05,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:58:05,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:58:05,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i Unable to find full path for "g++" [2024-11-09 05:58:07,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:58:07,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:58:07,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2024-11-09 05:58:07,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data/691af8a38/dd1b57cda1c5451db4664a04f87754da/FLAG48ae7bf03 [2024-11-09 05:58:08,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/data/691af8a38/dd1b57cda1c5451db4664a04f87754da [2024-11-09 05:58:08,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:58:08,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:58:08,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:58:08,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:58:08,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:58:08,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:58:08" (1/1) ... [2024-11-09 05:58:08,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38975ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:08, skipping insertion in model container [2024-11-09 05:58:08,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:58:08" (1/1) ... [2024-11-09 05:58:08,129 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:58:09,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:58:09,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:58:09,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:58:09,683 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:58:09,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09 WrapperNode [2024-11-09 05:58:09,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:58:09,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:58:09,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:58:09,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:58:09,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,751 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-11-09 05:58:09,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:58:09,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:58:09,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:58:09,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:58:09,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:58:09,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:58:09,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:58:09,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:58:09,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (1/1) ... [2024-11-09 05:58:09,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:58:09,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:58:09,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:58:09,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:58:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 05:58:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 05:58:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:58:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:58:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:58:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:58:10,057 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:58:10,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:58:10,224 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-09 05:58:10,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:58:10,239 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:58:10,239 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:58:10,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:58:10 BoogieIcfgContainer [2024-11-09 05:58:10,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:58:10,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:58:10,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:58:10,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:58:10,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:58:08" (1/3) ... [2024-11-09 05:58:10,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fab50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:58:10, skipping insertion in model container [2024-11-09 05:58:10,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:58:09" (2/3) ... [2024-11-09 05:58:10,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374fab50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:58:10, skipping insertion in model container [2024-11-09 05:58:10,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:58:10" (3/3) ... [2024-11-09 05:58:10,252 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2024-11-09 05:58:10,270 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:58:10,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:58:10,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:58:10,362 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;@7c5e091c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:58:10,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:58:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 20 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 05:58:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:58:10,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:10,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:10,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:58:10,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1037500657, now seen corresponding path program 1 times [2024-11-09 05:58:10,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:58:10,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626695740] [2024-11-09 05:58:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:10,403 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 05:58:10,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:58:10,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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 05:58:10,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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 05:58:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:10,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:58:10,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:58:10,604 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 05:58:10,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:58:10,605 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:58:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626695740] [2024-11-09 05:58:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626695740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:58:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:58:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:58:10,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345759819] [2024-11-09 05:58:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:58:10,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:58:10,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:58:10,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:58:10,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:58:10,644 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 20 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 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 05:58:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:58:10,663 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2024-11-09 05:58:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:58:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2024-11-09 05:58:10,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:58:10,674 INFO L225 Difference]: With dead ends: 40 [2024-11-09 05:58:10,674 INFO L226 Difference]: Without dead ends: 17 [2024-11-09 05:58:10,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 05:58:10,683 INFO L432 NwaCegarLoop]: 27 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, 27 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 05:58:10,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:58:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-09 05:58:10,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-09 05:58:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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 05:58:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-09 05:58:10,725 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2024-11-09 05:58:10,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:58:10,727 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-09 05:58:10,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 05:58:10,728 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-09 05:58:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 05:58:10,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:58:10,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:58:10,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 05:58:10,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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 05:58:10,934 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:58:10,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:58:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1555217614, now seen corresponding path program 1 times [2024-11-09 05:58:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:58:10,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246578541] [2024-11-09 05:58:10,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:10,936 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 05:58:10,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:58:10,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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 05:58:10,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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 05:58:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:58:11,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:58:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:58:11,124 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:58:11,125 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:58:11,126 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 05:58:11,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 05:58:11,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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)] Ended with exit code 0 [2024-11-09 05:58:11,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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 05:58:11,333 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 05:58:11,354 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:58:11,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:58:11 BoogieIcfgContainer [2024-11-09 05:58:11,358 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:58:11,358 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:58:11,358 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:58:11,359 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:58:11,359 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:58:10" (3/4) ... [2024-11-09 05:58:11,363 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:58:11,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:58:11,367 INFO L158 Benchmark]: Toolchain (without parser) took 3331.07ms. Allocated memory was 62.9MB in the beginning and 102.8MB in the end (delta: 39.8MB). Free memory was 29.9MB in the beginning and 53.9MB in the end (delta: -24.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-11-09 05:58:11,368 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:58:11,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1647.77ms. Allocated memory was 62.9MB in the beginning and 102.8MB in the end (delta: 39.8MB). Free memory was 29.7MB in the beginning and 75.1MB in the end (delta: -45.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-11-09 05:58:11,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.49ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 71.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:58:11,369 INFO L158 Benchmark]: Boogie Preprocessor took 51.58ms. Allocated memory is still 102.8MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:58:11,370 INFO L158 Benchmark]: RCFGBuilder took 434.88ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 55.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:58:11,370 INFO L158 Benchmark]: TraceAbstraction took 1114.48ms. Allocated memory is still 102.8MB. Free memory was 54.7MB in the beginning and 54.5MB in the end (delta: 194.0kB). Peak memory consumption was 194.0kB. Max. memory is 16.1GB. [2024-11-09 05:58:11,371 INFO L158 Benchmark]: Witness Printer took 6.50ms. Allocated memory is still 102.8MB. Free memory was 54.5MB in the beginning and 53.9MB in the end (delta: 585.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:58:11,374 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1647.77ms. Allocated memory was 62.9MB in the beginning and 102.8MB in the end (delta: 39.8MB). Free memory was 29.7MB in the beginning and 75.1MB in the end (delta: -45.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.49ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 71.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.58ms. Allocated memory is still 102.8MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.88ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 55.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1114.48ms. Allocated memory is still 102.8MB. Free memory was 54.7MB in the beginning and 54.5MB in the end (delta: 194.0kB). Peak memory consumption was 194.0kB. Max. memory is 16.1GB. * Witness Printer took 6.50ms. Allocated memory is still 102.8MB. Free memory was 54.5MB in the beginning and 53.9MB in the end (delta: 585.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: 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 1580, 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] [L1580] 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) [L1580] 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_16_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 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) [L1567] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] ++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: 1570]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 27 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, 27 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 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 05:58:11,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64a06ea8-ec19-443c-9130-6db6fca13244/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