./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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 b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:46:07,217 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:46:07,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 04:46:07,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:46:07,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:46:07,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:46:07,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:46:07,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:46:07,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:46:07,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:46:07,362 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:46:07,363 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:46:07,363 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:46:07,363 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:46:07,364 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:46:07,364 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:46:07,364 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:46:07,367 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:46:07,368 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:46:07,368 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:46:07,372 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:46:07,372 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:46:07,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:46:07,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:46:07,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:46:07,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:46:07,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:46:07,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:46:07,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:46:07,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:46:07,376 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:46:07,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:46:07,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:46:07,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:46:07,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:46:07,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:46:07,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:46:07,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:07,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:46:07,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:46:07,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:46:07,384 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:46:07,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:46:07,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:46:07,385 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:46:07,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:46:07,386 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_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 [2024-11-09 04:46:07,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:46:07,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:46:07,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:46:07,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:46:07,677 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:46:07,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i Unable to find full path for "g++" [2024-11-09 04:46:09,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:46:10,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:46:10,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-09 04:46:10,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data/3cfedf909/10dde399f3ba411794ea6112687fd894/FLAGe4e644af3 [2024-11-09 04:46:10,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data/3cfedf909/10dde399f3ba411794ea6112687fd894 [2024-11-09 04:46:10,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:46:10,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:46:10,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:10,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:46:10,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:46:10,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:10" (1/1) ... [2024-11-09 04:46:10,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442bb756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:10, skipping insertion in model container [2024-11-09 04:46:10,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:10" (1/1) ... [2024-11-09 04:46:10,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:46:11,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:11,275 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:46:11,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:11,604 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:46:11,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11 WrapperNode [2024-11-09 04:46:11,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:11,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:11,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:46:11,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:46:11,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,682 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-09 04:46:11,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:11,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:46:11,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:46:11,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:46:11,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:46:11,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:46:11,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:46:11,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:46:11,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (1/1) ... [2024-11-09 04:46:11,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:11,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:46:11,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:46:11,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:46:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 04:46:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 04:46:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:46:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:46:11,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:46:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:46:11,971 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:46:11,973 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:46:12,122 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 04:46:12,122 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:46:12,185 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:46:12,186 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:46:12,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:12 BoogieIcfgContainer [2024-11-09 04:46:12,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:46:12,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:46:12,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:46:12,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:46:12,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:46:10" (1/3) ... [2024-11-09 04:46:12,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f531b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:12, skipping insertion in model container [2024-11-09 04:46:12,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:11" (2/3) ... [2024-11-09 04:46:12,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f531b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:12, skipping insertion in model container [2024-11-09 04:46:12,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:12" (3/3) ... [2024-11-09 04:46:12,208 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-09 04:46:12,230 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:46:12,230 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 04:46:12,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:46:12,299 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;@bd0cc5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:46:12,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 04:46:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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 04:46:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:46:12,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:12,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:46:12,312 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:46:12,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:12,318 INFO L85 PathProgramCache]: Analyzing trace with hash 131819525, now seen corresponding path program 1 times [2024-11-09 04:46:12,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:12,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036614146] [2024-11-09 04:46:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:12,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:12,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:46:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:12,552 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:46:12,554 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:46:12,556 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 04:46:12,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 04:46:12,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:46:12,564 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:46:12,586 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:46:12,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:46:12 BoogieIcfgContainer [2024-11-09 04:46:12,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:46:12,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:46:12,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:46:12,591 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:46:12,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:12" (3/4) ... [2024-11-09 04:46:12,594 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:46:12,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:46:12,596 INFO L158 Benchmark]: Toolchain (without parser) took 2448.28ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 126.6MB in the beginning and 129.0MB in the end (delta: -2.5MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2024-11-09 04:46:12,596 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 163.6MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:12,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1454.58ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 126.6MB in the beginning and 168.9MB in the end (delta: -42.3MB). Peak memory consumption was 81.3MB. Max. memory is 16.1GB. [2024-11-09 04:46:12,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.51ms. Allocated memory is still 207.6MB. Free memory was 168.9MB in the beginning and 166.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:46:12,598 INFO L158 Benchmark]: Boogie Preprocessor took 46.58ms. Allocated memory is still 207.6MB. Free memory was 166.8MB in the beginning and 164.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:46:12,599 INFO L158 Benchmark]: RCFGBuilder took 455.66ms. Allocated memory is still 207.6MB. Free memory was 164.7MB in the beginning and 149.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 04:46:12,599 INFO L158 Benchmark]: TraceAbstraction took 396.40ms. Allocated memory is still 207.6MB. Free memory was 147.9MB in the beginning and 129.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:12,600 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 207.6MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:12,604 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 163.6MB. Free memory is still 108.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1454.58ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 126.6MB in the beginning and 168.9MB in the end (delta: -42.3MB). Peak memory consumption was 81.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.51ms. Allocated memory is still 207.6MB. Free memory was 168.9MB in the beginning and 166.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.58ms. Allocated memory is still 207.6MB. Free memory was 166.8MB in the beginning and 164.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 455.66ms. Allocated memory is still 207.6MB. Free memory was 164.7MB in the beginning and 149.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 396.40ms. Allocated memory is still 207.6MB. Free memory was 147.9MB in the beginning and 129.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 207.6MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_multiply_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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: 1556]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:46:12,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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 b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:46:14,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:46:15,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 04:46:15,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:46:15,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:46:15,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:46:15,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:46:15,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:46:15,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:46:15,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:46:15,145 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:46:15,146 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:46:15,146 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:46:15,150 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:46:15,151 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:46:15,151 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:46:15,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:46:15,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:46:15,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:46:15,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:46:15,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:46:15,153 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:46:15,153 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:46:15,153 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:46:15,154 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:46:15,154 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:46:15,154 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:46:15,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:46:15,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:46:15,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:46:15,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:46:15,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:46:15,156 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:46:15,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:46:15,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:15,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:46:15,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:46:15,159 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:46:15,159 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:46:15,160 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:46:15,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:46:15,161 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:46:15,161 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_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5b0306ceebc7138ed940cef6b6848d6eb995b72db2fae2138badb859ab7a0a1 [2024-11-09 04:46:15,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:46:15,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:46:15,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:46:15,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:46:15,595 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:46:15,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i Unable to find full path for "g++" [2024-11-09 04:46:17,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:46:18,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:46:18,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-09 04:46:18,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data/269b4ea26/ea92449fb8194924bc7830f8d7463bb8/FLAG140d06ca8 [2024-11-09 04:46:18,244 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/data/269b4ea26/ea92449fb8194924bc7830f8d7463bb8 [2024-11-09 04:46:18,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:46:18,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:46:18,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:18,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:46:18,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:46:18,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:18" (1/1) ... [2024-11-09 04:46:18,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7bbf55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:18, skipping insertion in model container [2024-11-09 04:46:18,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:18" (1/1) ... [2024-11-09 04:46:18,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:46:19,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:19,355 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:46:19,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:19,596 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:46:19,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19 WrapperNode [2024-11-09 04:46:19,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:19,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:19,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:46:19,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:46:19,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,673 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-09 04:46:19,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:19,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:46:19,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:46:19,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:46:19,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:46:19,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:46:19,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:46:19,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:46:19,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (1/1) ... [2024-11-09 04:46:19,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:19,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:46:19,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:46:19,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:46:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 04:46:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 04:46:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:46:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:46:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:46:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:46:20,022 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:46:20,024 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:46:20,240 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 04:46:20,240 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:46:20,257 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:46:20,257 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:46:20,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:20 BoogieIcfgContainer [2024-11-09 04:46:20,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:46:20,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:46:20,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:46:20,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:46:20,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:46:18" (1/3) ... [2024-11-09 04:46:20,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a84572a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:20, skipping insertion in model container [2024-11-09 04:46:20,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:19" (2/3) ... [2024-11-09 04:46:20,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a84572a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:20, skipping insertion in model container [2024-11-09 04:46:20,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:20" (3/3) ... [2024-11-09 04:46:20,269 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_45_bad.i [2024-11-09 04:46:20,288 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:46:20,289 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 04:46:20,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:46:20,385 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;@2324a51d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:46:20,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 04:46:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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 04:46:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 04:46:20,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:20,400 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:46:20,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:46:20,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:20,405 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times [2024-11-09 04:46:20,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:46:20,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999787268] [2024-11-09 04:46:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:20,418 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 04:46:20,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:46:20,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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 04:46:20,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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 04:46:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:20,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:46:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:20,702 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 04:46:20,706 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:46:20,708 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 04:46:20,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 04:46:20,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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 04:46:20,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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 04:46:20,914 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:46:20,940 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:46:20,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:46:20 BoogieIcfgContainer [2024-11-09 04:46:20,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:46:20,944 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:46:20,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:46:20,944 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:46:20,945 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:20" (3/4) ... [2024-11-09 04:46:20,947 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:46:20,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:46:20,950 INFO L158 Benchmark]: Toolchain (without parser) took 2702.01ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 52.3MB in the beginning and 80.0MB in the end (delta: -27.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-09 04:46:20,951 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 55.0MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:20,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1347.72ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 52.1MB in the beginning and 57.3MB in the end (delta: -5.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:20,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.89ms. Allocated memory is still 113.2MB. Free memory was 57.3MB in the beginning and 84.5MB in the end (delta: -27.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-09 04:46:20,953 INFO L158 Benchmark]: Boogie Preprocessor took 55.85ms. Allocated memory is still 113.2MB. Free memory was 83.9MB in the beginning and 82.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:46:20,953 INFO L158 Benchmark]: RCFGBuilder took 528.88ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 67.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:46:20,954 INFO L158 Benchmark]: TraceAbstraction took 682.27ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 80.0MB in the end (delta: -13.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 04:46:20,954 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 113.2MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:20,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 55.0MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1347.72ms. Allocated memory was 79.7MB in the beginning and 113.2MB in the end (delta: 33.6MB). Free memory was 52.1MB in the beginning and 57.3MB in the end (delta: -5.2MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.89ms. Allocated memory is still 113.2MB. Free memory was 57.3MB in the beginning and 84.5MB in the end (delta: -27.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.85ms. Allocated memory is still 113.2MB. Free memory was 83.9MB in the beginning and 82.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.88ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 67.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 682.27ms. Allocated memory is still 113.2MB. Free memory was 66.5MB in the beginning and 80.0MB in the end (delta: -13.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 113.2MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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 printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_multiply_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2143289344, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2143289344, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2143289344, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2143289344, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_45_badData=-2143289344, CWE191_Integer_Underflow__int_fgets_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_45_goodG2BData=0, 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: 1556]: 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:46:20,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4f314bd-5bf7-4809-bc93-2f4583ffc49a/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