./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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_de97374f-4214-4a48-9a58-f4853d6e57c3/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 681566e7df7311d7645bdb75117aa675d35ca0381f7478d7b5cdbd43e20482f2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:20:35,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:20:35,264 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 19:20:35,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:20:35,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:20:35,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:20:35,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:20:35,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:20:35,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:20:35,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:20:35,297 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:20:35,298 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:20:35,298 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:20:35,299 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:20:35,299 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:20:35,300 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:20:35,300 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:20:35,301 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:20:35,301 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:20:35,302 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:20:35,302 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:20:35,303 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:20:35,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:20:35,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:20:35,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:20:35,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:20:35,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:20:35,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:20:35,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:20:35,307 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 19:20:35,307 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:20:35,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:20:35,308 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:20:35,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:20:35,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:20:35,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:20:35,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:20:35,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:20:35,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:20:35,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:20:35,310 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:20:35,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:20:35,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:20:35,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:20:35,311 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:20:35,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:20:35,311 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_de97374f-4214-4a48-9a58-f4853d6e57c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 681566e7df7311d7645bdb75117aa675d35ca0381f7478d7b5cdbd43e20482f2 [2023-12-02 19:20:35,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:20:35,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:20:35,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:20:35,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:20:35,563 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:20:35,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i [2023-12-02 19:20:38,394 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:20:38,710 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:20:38,711 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i [2023-12-02 19:20:38,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data/f26308818/12860410671c4c6fa32613ae1efa8f45/FLAGdbce5dd2a [2023-12-02 19:20:38,753 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data/f26308818/12860410671c4c6fa32613ae1efa8f45 [2023-12-02 19:20:38,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:20:38,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:20:38,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:20:38,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:20:38,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:20:38,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:20:38" (1/1) ... [2023-12-02 19:20:38,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ab24bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:38, skipping insertion in model container [2023-12-02 19:20:38,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:20:38" (1/1) ... [2023-12-02 19:20:38,823 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:20:39,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:20:39,681 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:20:39,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:20:39,890 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:39,891 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:39,891 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:39,891 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:39,897 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:20:39,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39 WrapperNode [2023-12-02 19:20:39,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:20:39,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:20:39,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:20:39,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:20:39,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,955 INFO L138 Inliner]: procedures = 498, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-12-02 19:20:39,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:20:39,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:20:39,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:20:39,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:20:39,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,969 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:39,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:20:39,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:20:39,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:20:39,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:20:39,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (1/1) ... [2023-12-02 19:20:40,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:20:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:20:40,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:20:40,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:20:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 19:20:40,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 19:20:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:20:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:20:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:20:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:20:40,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:20:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:20:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 19:20:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:20:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:20:40,217 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:20:40,219 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:20:40,341 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:20:40,384 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:20:40,385 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 19:20:40,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:20:40 BoogieIcfgContainer [2023-12-02 19:20:40,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:20:40,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:20:40,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:20:40,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:20:40,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:20:38" (1/3) ... [2023-12-02 19:20:40,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9d3bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:20:40, skipping insertion in model container [2023-12-02 19:20:40,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:39" (2/3) ... [2023-12-02 19:20:40,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9d3bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:20:40, skipping insertion in model container [2023-12-02 19:20:40,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:20:40" (3/3) ... [2023-12-02 19:20:40,395 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i [2023-12-02 19:20:40,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:20:40,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 19:20:40,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:20:40,458 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;@2acee702, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:20:40,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 19:20:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 16 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 19:20:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 19:20:40,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:20:40,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:20:40,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 19:20:40,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:20:40,476 INFO L85 PathProgramCache]: Analyzing trace with hash -80147218, now seen corresponding path program 1 times [2023-12-02 19:20:40,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:20:40,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035095967] [2023-12-02 19:20:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:20:40,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:20:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:20:40,618 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:20:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:20:40,675 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 19:20:40,677 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:20:40,678 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 19:20:40,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 19:20:40,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:20:40,684 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:20:40,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:20:40,704 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet106 [2023-12-02 19:20:40,707 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-12-02 19:20:40,707 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch102 could not be translated [2023-12-02 19:20:40,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated [2023-12-02 19:20:40,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch102 could not be translated [2023-12-02 19:20:40,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:20:40 BoogieIcfgContainer [2023-12-02 19:20:40,716 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:20:40,716 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:20:40,717 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:20:40,717 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:20:40,717 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:20:40" (3/4) ... [2023-12-02 19:20:40,720 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:20:40,721 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:20:40,722 INFO L158 Benchmark]: Toolchain (without parser) took 1964.57ms. Allocated memory is still 184.5MB. Free memory was 145.2MB in the beginning and 92.9MB in the end (delta: 52.3MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-12-02 19:20:40,723 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:20:40,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1138.38ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 131.0MB in the end (delta: 13.7MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2023-12-02 19:20:40,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.72ms. Allocated memory is still 184.5MB. Free memory was 131.0MB in the beginning and 128.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:20:40,725 INFO L158 Benchmark]: Boogie Preprocessor took 29.53ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 126.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:20:40,726 INFO L158 Benchmark]: RCFGBuilder took 399.95ms. Allocated memory is still 184.5MB. Free memory was 126.9MB in the beginning and 111.7MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 19:20:40,726 INFO L158 Benchmark]: TraceAbstraction took 326.82ms. Allocated memory is still 184.5MB. Free memory was 110.9MB in the beginning and 93.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 19:20:40,727 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 184.5MB. Free memory was 93.3MB in the beginning and 92.9MB in the end (delta: 461.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:20:40,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1138.38ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 131.0MB in the end (delta: 13.7MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.72ms. Allocated memory is still 184.5MB. Free memory was 131.0MB in the beginning and 128.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.53ms. Allocated memory is still 184.5MB. Free memory was 128.5MB in the beginning and 126.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 399.95ms. Allocated memory is still 184.5MB. Free memory was 126.9MB in the beginning and 111.7MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 326.82ms. Allocated memory is still 184.5MB. Free memory was 110.9MB in the beginning and 93.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 184.5MB. Free memory was 93.3MB in the beginning and 92.9MB in the end (delta: 461.8kB). 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~nondet106 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch102 could not be translated - 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: 1565]: 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 1577. 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); [L1577] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741827, argc=1073741827, argv={1073741830:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fscanf_sub_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1563] case 7: [L1565] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={6:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={6:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1565]: 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, 22 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=22occurred 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 [2023-12-02 19:20:40,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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_de97374f-4214-4a48-9a58-f4853d6e57c3/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 681566e7df7311d7645bdb75117aa675d35ca0381f7478d7b5cdbd43e20482f2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:20:42,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:20:42,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 19:20:42,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:20:42,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:20:42,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:20:42,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:20:42,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:20:42,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:20:42,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:20:42,874 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:20:42,875 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:20:42,875 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:20:42,876 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:20:42,876 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:20:42,877 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:20:42,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:20:42,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:20:42,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:20:42,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:20:42,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:20:42,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:20:42,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:20:42,882 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 19:20:42,882 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 19:20:42,882 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 19:20:42,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:20:42,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:20:42,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:20:42,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:20:42,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 19:20:42,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:20:42,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:20:42,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:20:42,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:20:42,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:20:42,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:20:42,887 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 19:20:42,887 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 19:20:42,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:20:42,887 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:20:42,888 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:20:42,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:20:42,888 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_de97374f-4214-4a48-9a58-f4853d6e57c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 681566e7df7311d7645bdb75117aa675d35ca0381f7478d7b5cdbd43e20482f2 [2023-12-02 19:20:43,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:20:43,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:20:43,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:20:43,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:20:43,211 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:20:43,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i [2023-12-02 19:20:46,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:20:46,440 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:20:46,441 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i [2023-12-02 19:20:46,471 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data/1b2da88d6/a8475201c7a94f8db1c7302f543a2520/FLAGc6a071589 [2023-12-02 19:20:46,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/data/1b2da88d6/a8475201c7a94f8db1c7302f543a2520 [2023-12-02 19:20:46,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:20:46,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:20:46,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:20:46,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:20:46,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:20:46,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:20:46" (1/1) ... [2023-12-02 19:20:46,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4a3e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:46, skipping insertion in model container [2023-12-02 19:20:46,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:20:46" (1/1) ... [2023-12-02 19:20:46,579 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:20:47,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:20:47,479 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:20:47,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:20:47,711 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:47,712 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:47,712 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:47,712 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:20:47,720 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:20:47,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47 WrapperNode [2023-12-02 19:20:47,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:20:47,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:20:47,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:20:47,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:20:47,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,781 INFO L138 Inliner]: procedures = 503, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-12-02 19:20:47,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:20:47,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:20:47,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:20:47,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:20:47,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:20:47,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:20:47,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:20:47,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:20:47,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (1/1) ... [2023-12-02 19:20:47,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:20:47,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:20:47,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:20:47,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:20:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 19:20:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 19:20:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:20:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 19:20:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:20:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:20:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:20:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 19:20:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:20:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 19:20:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 19:20:48,058 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:20:48,061 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:20:48,221 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:20:48,265 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:20:48,265 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 19:20:48,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:20:48 BoogieIcfgContainer [2023-12-02 19:20:48,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:20:48,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:20:48,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:20:48,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:20:48,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:20:46" (1/3) ... [2023-12-02 19:20:48,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58633c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:20:48, skipping insertion in model container [2023-12-02 19:20:48,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:20:47" (2/3) ... [2023-12-02 19:20:48,274 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58633c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:20:48, skipping insertion in model container [2023-12-02 19:20:48,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:20:48" (3/3) ... [2023-12-02 19:20:48,276 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_15_bad.i [2023-12-02 19:20:48,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:20:48,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 19:20:48,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:20:48,364 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;@417de6d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:20:48,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 19:20:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 19:20:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 19:20:48,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:20:48,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:20:48,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 19:20:48,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:20:48,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1005682637, now seen corresponding path program 1 times [2023-12-02 19:20:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 19:20:48,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399700759] [2023-12-02 19:20:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:20:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 19:20:48,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 19:20:48,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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 19:20:48,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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 19:20:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:20:48,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 19:20:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 19:20:48,711 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 19:20:48,713 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 19:20:48,715 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 19:20:48,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 19:20:48,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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 19:20:48,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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 19:20:48,923 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 19:20:48,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 19:20:48,946 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-12-02 19:20:48,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated [2023-12-02 19:20:48,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem101 could not be translated [2023-12-02 19:20:48,955 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated [2023-12-02 19:20:48,956 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem101 could not be translated [2023-12-02 19:20:48,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:20:48 BoogieIcfgContainer [2023-12-02 19:20:48,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 19:20:48,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 19:20:48,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 19:20:48,965 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 19:20:48,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:20:48" (3/4) ... [2023-12-02 19:20:48,968 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 19:20:48,969 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 19:20:48,970 INFO L158 Benchmark]: Toolchain (without parser) took 2476.88ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 61.9MB in the end (delta: 9.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-12-02 19:20:48,970 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:20:48,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1226.09ms. Allocated memory is still 98.6MB. Free memory was 70.8MB in the beginning and 69.4MB in the end (delta: 1.4MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2023-12-02 19:20:48,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.17ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 66.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:20:48,972 INFO L158 Benchmark]: Boogie Preprocessor took 39.92ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 19:20:48,973 INFO L158 Benchmark]: RCFGBuilder took 443.07ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 47.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 19:20:48,974 INFO L158 Benchmark]: TraceAbstraction took 695.07ms. Allocated memory is still 98.6MB. Free memory was 46.4MB in the beginning and 61.9MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:20:48,974 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 98.6MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 19:20:48,977 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 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1226.09ms. Allocated memory is still 98.6MB. Free memory was 70.8MB in the beginning and 69.4MB in the end (delta: 1.4MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.17ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 66.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.92ms. Allocated memory is still 98.6MB. Free memory was 66.3MB in the beginning and 64.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.07ms. Allocated memory is still 98.6MB. Free memory was 64.2MB in the beginning and 47.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 695.07ms. Allocated memory is still 98.6MB. Free memory was 46.4MB in the beginning and 61.9MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 98.6MB. Free memory is still 61.9MB. 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~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem101 could not be translated - 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: 1565]: 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 1577. 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); [L1577] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fscanf_sub_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1563] case 7: [L1565] EXPR \read(data) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 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=24occurred 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, 11 NumberOfCodeBlocks, 11 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 19:20:48,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de97374f-4214-4a48-9a58-f4853d6e57c3/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