./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --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 689d425b6b88e05e7ab9def88fde070c62539604cea6a5998338a0c08790a600 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 16:03:08,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:03:08,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:03:08,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:03:08,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:03:08,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:03:08,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:03:08,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:03:08,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:03:08,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:03:08,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:03:08,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:03:08,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:03:08,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:03:08,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:03:08,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:03:08,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:03:08,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:03:08,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:03:08,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:03:08,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:03:08,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:03:08,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:03:08,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:03:08,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:03:08,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:03:08,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:03:08,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:03:08,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:03:08,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:03:08,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:03:08,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:03:08,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:03:08,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:03:08,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:03:08,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:03:08,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:03:08,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:03:08,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:03:08,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:03:08,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:03:08,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-16 16:03:08,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:03:08,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:03:08,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:03:08,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:03:08,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:03:08,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:03:08,790 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:03:08,791 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:03:08,791 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:03:08,791 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:03:08,793 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:03:08,793 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:03:08,794 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:03:08,794 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:03:08,794 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:03:08,795 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:03:08,795 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:03:08,796 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:03:08,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:03:08,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:03:08,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:03:08,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:03:08,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:03:08,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:03:08,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:03:08,801 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:03:08,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:03:08,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:03:08,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:03:08,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:03:08,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:03:08,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:03:08,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:03:08,804 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:03:08,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:03:08,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:03:08,806 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:03:08,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:03:08,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:03:08,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:03:08,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 689d425b6b88e05e7ab9def88fde070c62539604cea6a5998338a0c08790a600 [2022-11-16 16:03:09,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:03:09,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:03:09,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:03:09,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:03:09,299 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:03:09,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_good.i [2022-11-16 16:03:09,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/data/f3cec1ca1/43f384782b8d4efb81690b9d3c6032b4/FLAG44cef0fe4 [2022-11-16 16:03:10,170 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:03:10,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_good.i [2022-11-16 16:03:10,217 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/data/f3cec1ca1/43f384782b8d4efb81690b9d3c6032b4/FLAG44cef0fe4 [2022-11-16 16:03:10,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/data/f3cec1ca1/43f384782b8d4efb81690b9d3c6032b4 [2022-11-16 16:03:10,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:03:10,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:03:10,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:03:10,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:03:10,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:03:10,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:10" (1/1) ... [2022-11-16 16:03:10,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b1c8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:10, skipping insertion in model container [2022-11-16 16:03:10,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:03:10" (1/1) ... [2022-11-16 16:03:10,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:03:10,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:03:11,003 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 16:03:11,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:03:11,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:03:11,697 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 16:03:11,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:03:11,914 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:03:11,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11 WrapperNode [2022-11-16 16:03:11,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:03:11,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:03:11,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:03:11,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:03:11,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:11,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,062 INFO L138 Inliner]: procedures = 504, calls = 161, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 158 [2022-11-16 16:03:12,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:03:12,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:03:12,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:03:12,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:03:12,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,114 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:03:12,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:03:12,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:03:12,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:03:12,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (1/1) ... [2022-11-16 16:03:12,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:03:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:03:12,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:03:12,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:03:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-16 16:03:12,231 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-16 16:03:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-16 16:03:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-16 16:03:12,231 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-16 16:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 16:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:03:12,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 16:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:03:12,549 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:03:12,557 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:03:12,848 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:03:12,902 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:03:12,902 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 16:03:12,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:03:12 BoogieIcfgContainer [2022-11-16 16:03:12,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:03:12,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:03:12,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:03:12,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:03:12,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:03:10" (1/3) ... [2022-11-16 16:03:12,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16879168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:12, skipping insertion in model container [2022-11-16 16:03:12,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:03:11" (2/3) ... [2022-11-16 16:03:12,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16879168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:03:12, skipping insertion in model container [2022-11-16 16:03:12,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:03:12" (3/3) ... [2022-11-16 16:03:12,918 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_64_good.i [2022-11-16 16:03:12,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:03:12,942 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 16:03:13,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:03:13,035 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=LoopsAndPotentialCycles, 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;@766e28d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:03:13,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 16:03:13,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 16:03:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 16:03:13,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:13,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 16:03:13,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 16:03:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1351265282, now seen corresponding path program 1 times [2022-11-16 16:03:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:13,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995468255] [2022-11-16 16:03:13,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:13,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:03:13,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:13,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995468255] [2022-11-16 16:03:13,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995468255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:13,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:13,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:03:13,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939096647] [2022-11-16 16:03:13,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:13,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:03:13,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:14,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:03:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:14,016 INFO L87 Difference]: Start difference. First operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:03:14,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:14,141 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-11-16 16:03:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:03:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 6 [2022-11-16 16:03:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:14,158 INFO L225 Difference]: With dead ends: 27 [2022-11-16 16:03:14,158 INFO L226 Difference]: Without dead ends: 19 [2022-11-16 16:03:14,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:14,168 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:14,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 29 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 16:03:14,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-16 16:03:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-16 16:03:14,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 16:03:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-16 16:03:14,212 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2022-11-16 16:03:14,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:14,214 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-16 16:03:14,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 16:03:14,214 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-16 16:03:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 16:03:14,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:14,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:14,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 16:03:14,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 16:03:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:14,218 INFO L85 PathProgramCache]: Analyzing trace with hash 933604081, now seen corresponding path program 1 times [2022-11-16 16:03:14,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:14,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698020946] [2022-11-16 16:03:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:14,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:03:14,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:03:14,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:03:14,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698020946] [2022-11-16 16:03:14,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698020946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:03:14,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:03:14,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:03:14,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943420152] [2022-11-16 16:03:14,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:03:14,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:03:14,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:03:14,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:03:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:14,388 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:03:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:03:14,422 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-16 16:03:14,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:03:14,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-16 16:03:14,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:03:14,431 INFO L225 Difference]: With dead ends: 19 [2022-11-16 16:03:14,432 INFO L226 Difference]: Without dead ends: 18 [2022-11-16 16:03:14,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:03:14,435 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 16:03:14,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 16:03:14,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-16 16:03:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-16 16:03:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 16:03:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-16 16:03:14,450 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2022-11-16 16:03:14,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:03:14,451 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-16 16:03:14,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 16:03:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-16 16:03:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 16:03:14,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:03:14,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:03:14,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 16:03:14,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-16 16:03:14,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:03:14,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1123044493, now seen corresponding path program 1 times [2022-11-16 16:03:14,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:03:14,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324311310] [2022-11-16 16:03:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:03:14,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:03:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:03:14,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 16:03:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 16:03:14,596 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 16:03:14,603 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 16:03:14,605 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-16 16:03:14,608 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-16 16:03:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-16 16:03:14,609 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-16 16:03:14,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 16:03:14,616 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 16:03:14,623 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 16:03:14,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:03:14 BoogieIcfgContainer [2022-11-16 16:03:14,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 16:03:14,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 16:03:14,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 16:03:14,702 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 16:03:14,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:03:12" (3/4) ... [2022-11-16 16:03:14,706 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-16 16:03:14,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 16:03:14,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 16:03:14,771 INFO L158 Benchmark]: Toolchain (without parser) took 4433.70ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 79.5MB in the beginning and 73.8MB in the end (delta: 5.7MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,772 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 121.6MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 16:03:14,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1573.01ms. Allocated memory is still 121.6MB. Free memory was 79.3MB in the beginning and 47.3MB in the end (delta: 32.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.44ms. Allocated memory is still 121.6MB. Free memory was 47.3MB in the beginning and 95.5MB in the end (delta: -48.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,774 INFO L158 Benchmark]: Boogie Preprocessor took 56.35ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,774 INFO L158 Benchmark]: RCFGBuilder took 785.08ms. Allocated memory is still 121.6MB. Free memory was 93.4MB in the beginning and 70.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,775 INFO L158 Benchmark]: TraceAbstraction took 1791.27ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 69.7MB in the beginning and 76.9MB in the end (delta: -7.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,776 INFO L158 Benchmark]: Witness Printer took 69.30ms. Allocated memory is still 163.6MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 16:03:14,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 121.6MB. Free memory is still 99.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1573.01ms. Allocated memory is still 121.6MB. Free memory was 79.3MB in the beginning and 47.3MB in the end (delta: 32.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.44ms. Allocated memory is still 121.6MB. Free memory was 47.3MB in the beginning and 95.5MB in the end (delta: -48.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.35ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 785.08ms. Allocated memory is still 121.6MB. Free memory was 93.4MB in the beginning and 70.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1791.27ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 69.7MB in the beginning and 76.9MB in the end (delta: -7.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 69.30ms. Allocated memory is still 163.6MB. Free memory was 76.9MB in the beginning and 73.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1602]: integer overflow possible integer overflow possible We found a FailurePath: [L1525] int globalTrue = 1; [L1547] char** globalArgv = ((void *)0); [L1526] int globalFalse = 0; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1546] int globalArgc = 0; [L1522] const int GLOBAL_CONST_TRUE = 1; [L1527] int globalFive = 5; [L1582] CALL printLine("Calling good()...") 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={19:0}] [L1414] COND TRUE line != ((void *)0) [L1582] RET printLine("Calling good()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, argv={1073741829:1073741828}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] CALL CWE190_Integer_Overflow__int_fgets_add_64_good() [L1576] CALL goodG2B() [L1551] int data; [L1552] data = 0 [L1553] data = 2 [L1554] CALL CWE190_Integer_Overflow__int_fgets_add_64b_goodG2BSink(&data) [L1589] int * dataPtr = (int *)dataVoidPtr; [L1590] EXPR \read(*dataPtr) [L1590] int data = (*dataPtr); [L1592] EXPR data + 1 [L1592] int result = data + 1; VAL [data=2, dataPtr={23:0}, dataVoidPtr={23:0}, dataVoidPtr={23:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, result=3] [L1593] CALL printIntLine(result) VAL [\old(intNumber)=3, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1593] RET printIntLine(result) VAL [data=2, dataPtr={23:0}, dataVoidPtr={23:0}, dataVoidPtr={23:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, result=3] [L1554] RET CWE190_Integer_Overflow__int_fgets_add_64b_goodG2BSink(&data) [L1576] RET goodG2B() [L1577] CALL goodB2G() [L1559] int data; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_64b_goodB2GSink(&data) [L1598] int * dataPtr = (int *)dataVoidPtr; [L1599] EXPR \read(*dataPtr) [L1599] int data = (*dataPtr); [L1600] COND TRUE data < 0x7fffffff VAL [data=-2147483650, dataPtr={24:0}, dataVoidPtr={24:0}, dataVoidPtr={24:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1602] data + 1 VAL [data=-2147483650, dataPtr={24:0}, dataVoidPtr={24:0}, dataVoidPtr={24:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1602]: 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 3 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 35 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 16:03:14,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbda473b-0430-4c73-8394-2fdbaf31f52b/bin/utaipan-Xvt2sAort0/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)