./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur --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 a69b4ba63e290a3cc75d25aa44fcee80c12eba7c795ac896f3fe55df00519e8a --- 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-38b53e6 [2022-11-26 00:45:57,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:45:57,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:45:57,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:45:57,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:45:57,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:45:57,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:45:57,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:45:57,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:45:57,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:45:57,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:45:57,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:45:57,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:45:57,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:45:57,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:45:57,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:45:57,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:45:57,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:45:57,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:45:57,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:45:57,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:45:57,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:45:57,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:45:57,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:45:57,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:45:57,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:45:57,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:45:57,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:45:57,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:45:57,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:45:57,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:45:57,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:45:57,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:45:57,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:45:57,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:45:57,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:45:57,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:45:57,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:45:57,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:45:57,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:45:57,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:45:57,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:45:57,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:45:57,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:45:57,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:45:57,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:45:57,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:45:57,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:45:57,828 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:45:57,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:45:57,828 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:45:57,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:45:57,829 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:45:57,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:45:57,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:45:57,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:45:57,830 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:45:57,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:45:57,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:45:57,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:45:57,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:45:57,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:45:57,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:45:57,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:45:57,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:45:57,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:45:57,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:45:57,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:45:57,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:45:57,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:45:57,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:45:57,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:45:57,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:45:57,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:57,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:45:57,836 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:45:57,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:45:57,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:45:57,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:45:57,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:45:57,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:45:57,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:45:57,838 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_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a69b4ba63e290a3cc75d25aa44fcee80c12eba7c795ac896f3fe55df00519e8a [2022-11-26 00:45:58,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:45:58,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:45:58,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:45:58,165 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:45:58,166 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:45:58,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i [2022-11-26 00:46:01,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:46:01,756 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:46:01,756 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i [2022-11-26 00:46:01,779 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data/65a7feacc/c02f4b94551b4d0691802a3e35186cc0/FLAG8cecc0c83 [2022-11-26 00:46:01,796 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data/65a7feacc/c02f4b94551b4d0691802a3e35186cc0 [2022-11-26 00:46:01,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:46:01,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:46:01,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:46:01,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:46:01,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:46:01,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:46:01" (1/1) ... [2022-11-26 00:46:01,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b896f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:01, skipping insertion in model container [2022-11-26 00:46:01,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:46:01" (1/1) ... [2022-11-26 00:46:01,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:46:01,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:46:02,292 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:46:02,817 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:46:02,823 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:02,826 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:02,828 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:02,829 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:02,858 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:46:02,864 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:46:02,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:46:02,877 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:46:02,898 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:46:02,944 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:46:02,946 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:02,947 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:02,950 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:02,951 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:02,962 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:46:02,974 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:46:02,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:46:03,193 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:46:03,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03 WrapperNode [2022-11-26 00:46:03,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:46:03,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:46:03,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:46:03,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:46:03,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,275 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-26 00:46:03,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:46:03,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:46:03,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:46:03,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:46:03,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:46:03,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:46:03,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:46:03,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:46:03,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (1/1) ... [2022-11-26 00:46:03,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:46:03,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:03,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:46:03,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:46:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:46:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:46:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:46:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:46:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:46:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:46:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:46:03,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:46:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:46:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:46:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:46:03,625 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:46:03,628 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:46:03,819 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:46:03,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:46:03,859 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:46:03,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:03 BoogieIcfgContainer [2022-11-26 00:46:03,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:46:03,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:46:03,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:46:03,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:46:03,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:46:01" (1/3) ... [2022-11-26 00:46:03,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477f183c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:46:03, skipping insertion in model container [2022-11-26 00:46:03,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:03" (2/3) ... [2022-11-26 00:46:03,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@477f183c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:46:03, skipping insertion in model container [2022-11-26 00:46:03,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:03" (3/3) ... [2022-11-26 00:46:03,872 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i [2022-11-26 00:46:03,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:46:03,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:46:03,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:46:03,948 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;@530bc33b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:46:03,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:46:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:46:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:46:03,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:03,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:03,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:46:03,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:03,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1961114242, now seen corresponding path program 1 times [2022-11-26 00:46:03,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:03,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502970962] [2022-11-26 00:46:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:03,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:04,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:04,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502970962] [2022-11-26 00:46:04,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502970962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:04,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:04,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:46:04,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560081557] [2022-11-26 00:46:04,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:04,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:46:04,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:46:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:04,207 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-26 00:46:04,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:04,241 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-26 00:46:04,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:46:04,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 7 [2022-11-26 00:46:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:04,251 INFO L225 Difference]: With dead ends: 27 [2022-11-26 00:46:04,251 INFO L226 Difference]: Without dead ends: 13 [2022-11-26 00:46:04,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:04,258 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:04,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:46:04,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-26 00:46:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-26 00:46:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:46:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-26 00:46:04,296 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2022-11-26 00:46:04,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:04,298 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-26 00:46:04,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-26 00:46:04,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-26 00:46:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:46:04,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:04,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:46:04,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:46:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash -860164121, now seen corresponding path program 1 times [2022-11-26 00:46:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:04,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598487762] [2022-11-26 00:46:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:04,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:04,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598487762] [2022-11-26 00:46:04,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598487762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:04,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:04,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:46:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020248399] [2022-11-26 00:46:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:04,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:46:04,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:04,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:46:04,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:04,543 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 00:46:04,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:04,574 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-26 00:46:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:46:04,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2022-11-26 00:46:04,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:04,576 INFO L225 Difference]: With dead ends: 13 [2022-11-26 00:46:04,576 INFO L226 Difference]: Without dead ends: 12 [2022-11-26 00:46:04,576 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 [2022-11-26 00:46:04,578 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:04,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:46:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-26 00:46:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-26 00:46:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:46:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-26 00:46:04,583 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-11-26 00:46:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:04,584 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-26 00:46:04,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 00:46:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-26 00:46:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:46:04,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:04,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:04,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:46:04,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:46:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:04,587 INFO L85 PathProgramCache]: Analyzing trace with hash -895283913, now seen corresponding path program 1 times [2022-11-26 00:46:04,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:04,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724113448] [2022-11-26 00:46:04,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:04,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:46:04,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:46:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:46:04,764 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:46:04,764 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:46:04,765 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:46:04,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:46:04,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:46:04,772 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:46:04,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:46:04,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:46:04 BoogieIcfgContainer [2022-11-26 00:46:04,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:46:04,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:46:04,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:46:04,842 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:46:04,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:03" (3/4) ... [2022-11-26 00:46:04,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:46:04,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:46:04,852 INFO L158 Benchmark]: Toolchain (without parser) took 3051.02ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 93.0MB in the beginning and 119.8MB in the end (delta: -26.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-26 00:46:04,853 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 68.6MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:46:04,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1391.90ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 93.0MB in the beginning and 117.2MB in the end (delta: -24.2MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-11-26 00:46:04,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.45ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 114.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:46:04,863 INFO L158 Benchmark]: Boogie Preprocessor took 62.88ms. Allocated memory is still 165.7MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:46:04,863 INFO L158 Benchmark]: RCFGBuilder took 522.05ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 98.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:46:04,863 INFO L158 Benchmark]: TraceAbstraction took 976.77ms. Allocated memory is still 165.7MB. Free memory was 97.3MB in the beginning and 119.8MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:46:04,864 INFO L158 Benchmark]: Witness Printer took 9.09ms. Allocated memory is still 165.7MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:46:04,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 68.6MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1391.90ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 93.0MB in the beginning and 117.2MB in the end (delta: -24.2MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.45ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 114.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.88ms. Allocated memory is still 165.7MB. Free memory was 114.1MB in the beginning and 112.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.05ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 98.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 976.77ms. Allocated memory is still 165.7MB. Free memory was 97.3MB in the beginning and 119.8MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.09ms. Allocated memory is still 165.7MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_03_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] ++data VAL [data=2147483647, 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: 1569]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 24 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:46:04,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur --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 a69b4ba63e290a3cc75d25aa44fcee80c12eba7c795ac896f3fe55df00519e8a --- 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-38b53e6 [2022-11-26 00:46:07,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:46:07,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:46:07,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:46:07,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:46:07,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:46:07,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:46:07,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:46:07,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:46:07,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:46:07,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:46:07,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:46:07,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:46:07,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:46:07,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:46:07,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:46:07,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:46:07,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:46:07,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:46:07,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:46:07,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:46:07,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:46:07,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:46:07,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:46:07,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:46:07,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:46:07,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:46:07,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:46:07,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:46:07,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:46:07,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:46:07,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:46:07,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:46:07,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:46:07,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:46:07,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:46:07,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:46:07,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:46:07,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:46:07,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:46:07,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:46:07,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:46:07,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:46:07,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:46:07,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:46:07,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:46:07,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:46:07,829 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:46:07,829 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:46:07,830 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:46:07,830 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:46:07,831 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:46:07,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:46:07,832 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:46:07,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:46:07,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:46:07,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:46:07,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:46:07,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:46:07,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:46:07,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:46:07,836 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:46:07,836 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:46:07,837 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:46:07,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:46:07,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:46:07,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:46:07,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:46:07,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:46:07,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:46:07,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:46:07,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:46:07,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:46:07,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:46:07,841 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:46:07,842 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:46:07,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:46:07,842 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:46:07,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:46:07,843 INFO L138 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_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a69b4ba63e290a3cc75d25aa44fcee80c12eba7c795ac896f3fe55df00519e8a [2022-11-26 00:46:08,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:46:08,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:46:08,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:46:08,302 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:46:08,304 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:46:08,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i [2022-11-26 00:46:11,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:46:12,047 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:46:12,048 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i [2022-11-26 00:46:12,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data/0c03238c0/078c1a1398d543e0bec58c2d063d7630/FLAGfa290a638 [2022-11-26 00:46:12,094 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/data/0c03238c0/078c1a1398d543e0bec58c2d063d7630 [2022-11-26 00:46:12,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:46:12,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:46:12,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:46:12,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:46:12,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:46:12,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:46:12" (1/1) ... [2022-11-26 00:46:12,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff81d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:12, skipping insertion in model container [2022-11-26 00:46:12,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:46:12" (1/1) ... [2022-11-26 00:46:12,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:46:12,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:46:12,628 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:46:13,188 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:46:13,196 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:13,200 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:13,213 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:13,214 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:13,252 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:46:13,263 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:46:13,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:46:13,290 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:46:13,320 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:46:13,369 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:46:13,371 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:13,372 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:46:13,375 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:13,376 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:46:13,381 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:46:13,383 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:46:13,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:46:13,592 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:46:13,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13 WrapperNode [2022-11-26 00:46:13,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:46:13,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:46:13,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:46:13,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:46:13,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,670 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-11-26 00:46:13,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:46:13,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:46:13,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:46:13,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:46:13,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,725 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:46:13,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:46:13,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:46:13,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:46:13,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (1/1) ... [2022-11-26 00:46:13,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:46:13,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:13,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:46:13,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:46:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:46:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:46:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:46:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:46:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:46:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:46:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:46:13,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:46:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:46:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:46:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 00:46:14,033 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:46:14,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:46:14,217 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:46:14,224 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:46:14,224 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:46:14,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:14 BoogieIcfgContainer [2022-11-26 00:46:14,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:46:14,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:46:14,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:46:14,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:46:14,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:46:12" (1/3) ... [2022-11-26 00:46:14,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53427f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:46:14, skipping insertion in model container [2022-11-26 00:46:14,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:13" (2/3) ... [2022-11-26 00:46:14,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53427f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:46:14, skipping insertion in model container [2022-11-26 00:46:14,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:14" (3/3) ... [2022-11-26 00:46:14,249 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_03_bad.i [2022-11-26 00:46:14,312 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:46:14,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:46:14,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:46:14,402 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;@6e977a1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:46:14,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:46:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:46:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:46:14,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:14,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:14,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:46:14,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:14,433 INFO L85 PathProgramCache]: Analyzing trace with hash -500819106, now seen corresponding path program 1 times [2022-11-26 00:46:14,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:46:14,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163279108] [2022-11-26 00:46:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:14,449 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 [2022-11-26 00:46:14,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:46:14,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:46:14,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:46:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:14,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:46:14,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:46:14,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:14,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:46:14,697 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:46:14,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163279108] [2022-11-26 00:46:14,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163279108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:14,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:14,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:46:14,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055568068] [2022-11-26 00:46:14,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:14,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:46:14,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:46:14,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:46:14,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:14,787 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:46:14,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:14,819 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-11-26 00:46:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:46:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-26 00:46:14,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:14,829 INFO L225 Difference]: With dead ends: 37 [2022-11-26 00:46:14,830 INFO L226 Difference]: Without dead ends: 15 [2022-11-26 00:46:14,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:14,840 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:14,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:46:14,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-26 00:46:14,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-26 00:46:14,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:46:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-26 00:46:14,885 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2022-11-26 00:46:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:14,887 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-26 00:46:14,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:46:14,889 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-26 00:46:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:46:14,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:14,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:46:14,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:46:15,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:46:15,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:46:15,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash 804859611, now seen corresponding path program 1 times [2022-11-26 00:46:15,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:46:15,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655526748] [2022-11-26 00:46:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:15,109 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 [2022-11-26 00:46:15,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:46:15,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:46:15,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:46:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:46:15,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:46:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:46:15,398 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:46:15,398 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:46:15,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:46:15,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:46:15,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:46:15,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:46:15,616 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:46:15,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:46:15,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:46:15 BoogieIcfgContainer [2022-11-26 00:46:15,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:46:15,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:46:15,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:46:15,702 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:46:15,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:14" (3/4) ... [2022-11-26 00:46:15,705 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:46:15,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:46:15,708 INFO L158 Benchmark]: Toolchain (without parser) took 3607.99ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.5MB in the beginning and 66.7MB in the end (delta: -12.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-26 00:46:15,714 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 34.0MB in the beginning and 34.0MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:46:15,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1493.09ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 51.2MB in the end (delta: 3.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-11-26 00:46:15,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.39ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 47.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:46:15,716 INFO L158 Benchmark]: Boogie Preprocessor took 59.91ms. Allocated memory is still 79.7MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:46:15,716 INFO L158 Benchmark]: RCFGBuilder took 494.81ms. Allocated memory is still 79.7MB. Free memory was 45.8MB in the beginning and 32.4MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:46:15,720 INFO L158 Benchmark]: TraceAbstraction took 1471.48ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 31.6MB in the beginning and 67.5MB in the end (delta: -35.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-26 00:46:15,724 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 66.7MB in the end (delta: 720.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:46:15,728 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 34.0MB in the beginning and 34.0MB in the end (delta: 58.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1493.09ms. Allocated memory is still 79.7MB. Free memory was 54.3MB in the beginning and 51.2MB in the end (delta: 3.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.39ms. Allocated memory is still 79.7MB. Free memory was 51.2MB in the beginning and 47.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.91ms. Allocated memory is still 79.7MB. Free memory was 47.9MB in the beginning and 45.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.81ms. Allocated memory is still 79.7MB. Free memory was 45.8MB in the beginning and 32.4MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1471.48ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 31.6MB in the beginning and 67.5MB in the end (delta: -35.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 96.5MB. Free memory was 67.5MB in the beginning and 66.7MB in the end (delta: 720.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_03_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] ++data VAL [data=2147483647, 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: 1569]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:46:15,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2676cb75-7d3f-466c-b9cc-14c091c7386c/bin/utaipan-ByfvJB40ur/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 Result: UNKNOWN: Overapproximated counterexample