./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh --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 38f4dfc57b73b50e7919e55e43b6d93326d3143d501568ec0f57d0da3c3f0bca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:39:32,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:39:32,672 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 17:39:32,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:39:32,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:39:32,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:39:32,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:39:32,703 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:39:32,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:39:32,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:39:32,705 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:39:32,706 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:39:32,706 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:39:32,707 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:39:32,707 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:39:32,708 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:39:32,708 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:39:32,709 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:39:32,709 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:39:32,709 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:39:32,710 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:39:32,711 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:39:32,712 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:39:32,713 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:39:32,713 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:39:32,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:39:32,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:39:32,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:39:32,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:39:32,715 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:39:32,715 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:39:32,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:39:32,716 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:39:32,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:39:32,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:39:32,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:39:32,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:39:32,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:39:32,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:39:32,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:39:32,717 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:39:32,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:39:32,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:39:32,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:39:32,718 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:39:32,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:39:32,719 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_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38f4dfc57b73b50e7919e55e43b6d93326d3143d501568ec0f57d0da3c3f0bca [2023-12-02 17:39:32,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:39:32,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:39:32,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:39:32,966 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:39:32,966 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:39:32,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i [2023-12-02 17:39:35,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:39:36,055 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:39:36,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i [2023-12-02 17:39:36,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data/2aa85dc4b/bef3f6a3e1dd49a7bc5a5fc0f9d39174/FLAG3befadbcb [2023-12-02 17:39:36,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data/2aa85dc4b/bef3f6a3e1dd49a7bc5a5fc0f9d39174 [2023-12-02 17:39:36,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:39:36,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:39:36,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:39:36,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:39:36,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:39:36,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:39:36" (1/1) ... [2023-12-02 17:39:36,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f524195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:36, skipping insertion in model container [2023-12-02 17:39:36,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:39:36" (1/1) ... [2023-12-02 17:39:36,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:39:36,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:39:36,951 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:39:37,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:39:37,154 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:37,154 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:37,154 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:37,154 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:37,162 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:39:37,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37 WrapperNode [2023-12-02 17:39:37,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:39:37,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:39:37,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:39:37,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:39:37,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,222 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 50 [2023-12-02 17:39:37,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:39:37,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:39:37,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:39:37,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:39:37,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,249 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:39:37,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:39:37,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:39:37,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:39:37,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (1/1) ... [2023-12-02 17:39:37,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:39:37,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:39:37,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:39:37,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:39:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 17:39:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 17:39:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:39:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:39:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:39:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:39:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:39:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:39:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 17:39:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:39:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:39:37,473 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:39:37,475 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:39:37,595 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:39:37,634 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:39:37,634 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 17:39:37,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:37 BoogieIcfgContainer [2023-12-02 17:39:37,636 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:39:37,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:39:37,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:39:37,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:39:37,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:39:36" (1/3) ... [2023-12-02 17:39:37,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770e0aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:39:37, skipping insertion in model container [2023-12-02 17:39:37,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:37" (2/3) ... [2023-12-02 17:39:37,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770e0aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:39:37, skipping insertion in model container [2023-12-02 17:39:37,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:37" (3/3) ... [2023-12-02 17:39:37,646 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i [2023-12-02 17:39:37,666 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:39:37,666 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 17:39:37,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:39:37,717 INFO L357 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, mHoare=true, 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;@604c2ca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:39:37,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 17:39:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 17:39:37,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 17:39:37,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:39:37,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 17:39:37,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 17:39:37,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:39:37,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1830714995, now seen corresponding path program 1 times [2023-12-02 17:39:37,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:39:37,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279321872] [2023-12-02 17:39:37,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:37,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:39:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:39:37,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 17:39:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:39:37,927 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 17:39:37,929 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 17:39:37,930 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 17:39:37,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 17:39:37,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:39:37,936 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 17:39:37,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:39:37,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-02 17:39:37,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:39:37 BoogieIcfgContainer [2023-12-02 17:39:37,962 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:39:37,962 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:39:37,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:39:37,963 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:39:37,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:37" (3/4) ... [2023-12-02 17:39:37,966 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:39:37,967 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:39:37,968 INFO L158 Benchmark]: Toolchain (without parser) took 1869.29ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 83.2MB in the end (delta: 6.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-12-02 17:39:37,968 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:39:37,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1063.42ms. Allocated memory is still 136.3MB. Free memory was 88.9MB in the beginning and 61.2MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 17:39:37,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.76ms. Allocated memory is still 136.3MB. Free memory was 61.2MB in the beginning and 58.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:39:37,970 INFO L158 Benchmark]: Boogie Preprocessor took 28.78ms. Allocated memory is still 136.3MB. Free memory was 58.3MB in the beginning and 57.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:39:37,971 INFO L158 Benchmark]: RCFGBuilder took 383.32ms. Allocated memory is still 136.3MB. Free memory was 57.0MB in the beginning and 101.2MB in the end (delta: -44.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2023-12-02 17:39:37,972 INFO L158 Benchmark]: TraceAbstraction took 322.81ms. Allocated memory is still 136.3MB. Free memory was 100.0MB in the beginning and 83.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 17:39:37,972 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 136.3MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:39:37,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1063.42ms. Allocated memory is still 136.3MB. Free memory was 88.9MB in the beginning and 61.2MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.76ms. Allocated memory is still 136.3MB. Free memory was 61.2MB in the beginning and 58.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.78ms. Allocated memory is still 136.3MB. Free memory was 58.3MB in the beginning and 57.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 383.32ms. Allocated memory is still 136.3MB. Free memory was 57.0MB in the beginning and 101.2MB in the end (delta: -44.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 322.81ms. Allocated memory is still 136.3MB. Free memory was 100.0MB in the beginning and 83.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 136.3MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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); [L1559] CALL 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, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_fscanf_sub_63_bad() [L1551] int data; [L1552] data = 0 [L1554] CALL CWE191_Integer_Underflow__int_fscanf_sub_63b_badSink(&data) [L1566] EXPR \read(*dataPtr) [L1566] int data = *dataPtr; [L1568] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 17:39:37,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh --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 38f4dfc57b73b50e7919e55e43b6d93326d3143d501568ec0f57d0da3c3f0bca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:39:39,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:39:40,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 17:39:40,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:39:40,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:39:40,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:39:40,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:39:40,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:39:40,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:39:40,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:39:40,055 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:39:40,055 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:39:40,056 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:39:40,056 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:39:40,057 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:39:40,058 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:39:40,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:39:40,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:39:40,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:39:40,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:39:40,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:39:40,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:39:40,062 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:39:40,062 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:39:40,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 17:39:40,063 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:39:40,064 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 17:39:40,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:39:40,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:39:40,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:39:40,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:39:40,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:39:40,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:39:40,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:39:40,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:39:40,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:39:40,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:39:40,067 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:39:40,068 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:39:40,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:39:40,068 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:39:40,068 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:39:40,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:39:40,069 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38f4dfc57b73b50e7919e55e43b6d93326d3143d501568ec0f57d0da3c3f0bca [2023-12-02 17:39:40,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:39:40,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:39:40,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:39:40,401 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:39:40,402 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:39:40,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i [2023-12-02 17:39:43,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:39:43,577 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:39:43,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i [2023-12-02 17:39:43,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data/90eb844d6/5894f3e7a5a04122a9b0c95128781854/FLAG46bfdd5b9 [2023-12-02 17:39:43,804 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/data/90eb844d6/5894f3e7a5a04122a9b0c95128781854 [2023-12-02 17:39:43,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:39:43,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:39:43,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:39:43,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:39:43,813 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:39:43,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:39:43" (1/1) ... [2023-12-02 17:39:43,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3f4451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:43, skipping insertion in model container [2023-12-02 17:39:43,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:39:43" (1/1) ... [2023-12-02 17:39:43,885 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:39:44,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:39:44,661 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:39:44,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:39:44,847 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:44,847 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:44,848 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:44,848 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:39:44,854 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:39:44,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44 WrapperNode [2023-12-02 17:39:44,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:39:44,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:39:44,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:39:44,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:39:44,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,911 INFO L138 Inliner]: procedures = 504, calls = 61, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 49 [2023-12-02 17:39:44,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:39:44,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:39:44,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:39:44,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:39:44,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,924 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,925 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:39:44,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:39:44,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:39:44,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:39:44,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (1/1) ... [2023-12-02 17:39:44,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:39:44,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:39:44,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:39:45,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:39:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 17:39:45,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 17:39:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:39:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:39:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:39:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:39:45,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:39:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 17:39:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:39:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 17:39:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 17:39:45,184 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:39:45,186 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:39:45,339 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:39:45,377 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:39:45,377 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 17:39:45,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:45 BoogieIcfgContainer [2023-12-02 17:39:45,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:39:45,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:39:45,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:39:45,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:39:45,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:39:43" (1/3) ... [2023-12-02 17:39:45,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c977480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:39:45, skipping insertion in model container [2023-12-02 17:39:45,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:39:44" (2/3) ... [2023-12-02 17:39:45,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c977480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:39:45, skipping insertion in model container [2023-12-02 17:39:45,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:45" (3/3) ... [2023-12-02 17:39:45,389 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_63_bad.i [2023-12-02 17:39:45,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:39:45,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 17:39:45,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:39:45,470 INFO L357 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, mHoare=true, 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;@527ea9d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:39:45,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 17:39:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) 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) [2023-12-02 17:39:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 17:39:45,482 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:39:45,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:39:45,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 17:39:45,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:39:45,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175351, now seen corresponding path program 1 times [2023-12-02 17:39:45,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:39:45,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005142011] [2023-12-02 17:39:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:45,502 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 [2023-12-02 17:39:45,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:39:45,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 17:39:45,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:39:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:39:45,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 17:39:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:39:45,737 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 17:39:45,739 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 17:39:45,740 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 17:39:45,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 17:39:45,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:39:45,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:39:45,947 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 17:39:45,950 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:39:45,962 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet99 [2023-12-02 17:39:45,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:39:45 BoogieIcfgContainer [2023-12-02 17:39:45,971 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:39:45,972 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:39:45,972 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:39:45,972 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:39:45,973 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:39:45" (3/4) ... [2023-12-02 17:39:45,974 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:39:45,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:39:45,976 INFO L158 Benchmark]: Toolchain (without parser) took 2168.92ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 60.9MB in the beginning and 70.9MB in the end (delta: -9.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-12-02 17:39:45,977 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:39:45,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1046.22ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 39.2MB in the end (delta: 21.5MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-12-02 17:39:45,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.29ms. Allocated memory is still 88.1MB. Free memory was 39.2MB in the beginning and 36.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 17:39:45,978 INFO L158 Benchmark]: Boogie Preprocessor took 46.36ms. Allocated memory is still 88.1MB. Free memory was 36.2MB in the beginning and 60.9MB in the end (delta: -24.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2023-12-02 17:39:45,979 INFO L158 Benchmark]: RCFGBuilder took 418.36ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 45.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 17:39:45,979 INFO L158 Benchmark]: TraceAbstraction took 590.26ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 71.5MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:39:45,980 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 107.0MB. Free memory was 71.5MB in the beginning and 70.9MB in the end (delta: 598.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:39:45,983 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1046.22ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 39.2MB in the end (delta: 21.5MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.29ms. Allocated memory is still 88.1MB. Free memory was 39.2MB in the beginning and 36.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.36ms. Allocated memory is still 88.1MB. Free memory was 36.2MB in the beginning and 60.9MB in the end (delta: -24.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * RCFGBuilder took 418.36ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 45.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 590.26ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.6MB in the beginning and 71.5MB in the end (delta: -26.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 107.0MB. Free memory was 71.5MB in the beginning and 70.9MB in the end (delta: 598.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet99 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1559. 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); [L1559] CALL 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, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_fscanf_sub_63_bad() [L1551] int data; [L1552] data = 0 [L1554] CALL CWE191_Integer_Underflow__int_fscanf_sub_63b_badSink(&data) [L1566] EXPR \read(*dataPtr) [L1566] int data = *dataPtr; [L1568] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 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 [2023-12-02 17:39:46,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a932892-2f85-448f-8290-78c41fbc6e61/bin/utaipan-verify-nQ1chXbOIh/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