./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ffc1d4ff5146147535a8cadfa3671cd765ae4ddcb2dacc7af945329a570780ea --- 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-2329fc7 [2022-12-13 20:52:49,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:52:49,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:52:49,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:52:49,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:52:49,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:52:49,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:52:49,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:52:49,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:52:49,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:52:49,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:52:49,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:52:49,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:52:49,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:52:49,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:52:49,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:52:49,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:52:49,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:52:49,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:52:49,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:52:49,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:52:49,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:52:49,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:52:49,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:52:49,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:52:49,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:52:49,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:52:49,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:52:49,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:52:49,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:52:49,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:52:49,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:52:49,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:52:49,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:52:49,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:52:49,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:52:49,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:52:49,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:52:49,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:52:49,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:52:49,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:52:49,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:52:49,922 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:52:49,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:52:49,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:52:49,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:52:49,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:52:49,929 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:52:49,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:52:49,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:52:49,930 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:52:49,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:52:49,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:52:49,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:52:49,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:52:49,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:52:49,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:52:49,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:52:49,932 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:52:49,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:52:49,932 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:52:49,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:52:49,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:52:49,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:52:49,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:52:49,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:49,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:52:49,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:52:49,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:52:49,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:52:49,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:52:49,935 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:52:49,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:52:49,935 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:52:49,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:52:49,935 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:52:49,935 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffc1d4ff5146147535a8cadfa3671cd765ae4ddcb2dacc7af945329a570780ea [2022-12-13 20:52:50,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:52:50,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:52:50,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:52:50,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:52:50,166 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:52:50,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i [2022-12-13 20:52:52,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:52:53,022 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:52:53,022 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i [2022-12-13 20:52:53,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data/d621d3368/4af5e3e578de45ef92d8477369f12f38/FLAGaf8bcb17c [2022-12-13 20:52:53,345 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data/d621d3368/4af5e3e578de45ef92d8477369f12f38 [2022-12-13 20:52:53,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:52:53,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:52:53,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:53,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:52:53,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:52:53,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:53" (1/1) ... [2022-12-13 20:52:53,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6fd29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:53, skipping insertion in model container [2022-12-13 20:52:53,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:53" (1/1) ... [2022-12-13 20:52:53,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:52:53,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:52:53,626 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:52:53,909 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:52:53,914 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:53,916 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:53,918 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:53,919 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:53,937 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:52:53,943 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:52:53,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:53,952 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:52:53,965 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:52:53,995 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:52:53,996 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:53,997 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:53,999 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:53,999 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:54,002 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:52:54,004 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:52:54,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:54,110 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:52:54,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54 WrapperNode [2022-12-13 20:52:54,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:54,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:54,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:52:54,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:52:54,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,153 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-13 20:52:54,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:54,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:52:54,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:52:54,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:52:54,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:52:54,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:52:54,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:52:54,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:52:54,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (1/1) ... [2022-12-13 20:52:54,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:54,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:52:54,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:52:54,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:52:54,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:52:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-13 20:52:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-13 20:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 20:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:52:54,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:52:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:52:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:52:54,342 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:52:54,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:52:54,438 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:52:54,442 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:52:54,442 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:52:54,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:54 BoogieIcfgContainer [2022-12-13 20:52:54,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:52:54,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:52:54,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:52:54,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:52:54,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:52:53" (1/3) ... [2022-12-13 20:52:54,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fde149c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:54, skipping insertion in model container [2022-12-13 20:52:54,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:54" (2/3) ... [2022-12-13 20:52:54,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fde149c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:54, skipping insertion in model container [2022-12-13 20:52:54,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:54" (3/3) ... [2022-12-13 20:52:54,450 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i [2022-12-13 20:52:54,464 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:52:54,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:52:54,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:52:54,503 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=PETRI_NET, 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;@753c7b9e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:52:54,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:52:54,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 20:52:54,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 20:52:54,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:52:54,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:54,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:52:54,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:54,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1811171087, now seen corresponding path program 1 times [2022-12-13 20:52:54,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:54,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252697973] [2022-12-13 20:52:54,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:54,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:52:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:52:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 20:52:54,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:54,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252697973] [2022-12-13 20:52:54,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252697973] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:52:54,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148001977] [2022-12-13 20:52:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:54,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:52:54,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:52:54,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:52:54,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:52:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:54,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:52:54,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:52:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 20:52:54,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:52:54,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148001977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:54,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:52:54,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-13 20:52:54,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422378207] [2022-12-13 20:52:54,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:54,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:52:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:54,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:52:54,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:52:54,967 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 20:52:54,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:52:54,992 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2022-12-13 20:52:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:52:54,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 20:52:54,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:52:54,999 INFO L225 Difference]: With dead ends: 58 [2022-12-13 20:52:54,999 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 20:52:55,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:52:55,004 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:52:55,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 76 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:52:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 20:52:55,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 20:52:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:52:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-12-13 20:52:55,028 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2022-12-13 20:52:55,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:52:55,029 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-12-13 20:52:55,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 20:52:55,030 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-12-13 20:52:55,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 20:52:55,031 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:52:55,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:55,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:52:55,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 20:52:55,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:52:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1344832596, now seen corresponding path program 1 times [2022-12-13 20:52:55,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:55,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978536523] [2022-12-13 20:52:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:55,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:52:55,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:52:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:52:55,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:52:55,286 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:52:55,287 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:52:55,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:52:55,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:52:55,291 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:52:55,294 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:52:55,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:52:55 BoogieIcfgContainer [2022-12-13 20:52:55,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:52:55,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:52:55,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:52:55,313 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:52:55,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:54" (3/4) ... [2022-12-13 20:52:55,316 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:52:55,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:52:55,317 INFO L158 Benchmark]: Toolchain (without parser) took 1964.75ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 82.7MB in the beginning and 88.5MB in the end (delta: -5.8MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2022-12-13 20:52:55,317 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:55,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.60ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 82.4MB in the beginning and 101.5MB in the end (delta: -19.2MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2022-12-13 20:52:55,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.47ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 98.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:52:55,318 INFO L158 Benchmark]: Boogie Preprocessor took 17.95ms. Allocated memory is still 157.3MB. Free memory was 98.6MB in the beginning and 97.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:52:55,318 INFO L158 Benchmark]: RCFGBuilder took 271.99ms. Allocated memory is still 157.3MB. Free memory was 97.3MB in the beginning and 83.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:52:55,319 INFO L158 Benchmark]: TraceAbstraction took 867.30ms. Allocated memory is still 157.3MB. Free memory was 82.7MB in the beginning and 88.5MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:55,319 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 157.3MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:55,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.60ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 82.4MB in the beginning and 101.5MB in the end (delta: -19.2MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.47ms. Allocated memory is still 157.3MB. Free memory was 101.5MB in the beginning and 98.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.95ms. Allocated memory is still 157.3MB. Free memory was 98.6MB in the beginning and 97.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 271.99ms. Allocated memory is still 157.3MB. Free memory was 97.3MB in the beginning and 83.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 867.30ms. Allocated memory is still 157.3MB. Free memory was 82.7MB in the beginning and 88.5MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 157.3MB. Free memory is still 88.5MB. 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: 1570]: 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)=1073741829, argc=1073741829, argv={1073741828:1073741831}, argv={1073741828:1073741831}, 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 CWE191_Integer_Underflow__int_fgets_multiply_11_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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [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=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] RET globalReturnsTrue() VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1568] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=-1073741825, 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 50 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 4/6 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 [2022-12-13 20:52:55,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ffc1d4ff5146147535a8cadfa3671cd765ae4ddcb2dacc7af945329a570780ea --- 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-2329fc7 [2022-12-13 20:52:56,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:52:56,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:52:56,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:52:56,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:52:56,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:52:56,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:52:56,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:52:56,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:52:56,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:52:56,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:52:56,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:52:56,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:52:56,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:52:56,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:52:56,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:52:56,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:52:56,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:52:56,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:52:56,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:52:56,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:52:56,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:52:56,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:52:56,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:52:56,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:52:56,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:52:56,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:52:56,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:52:56,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:52:56,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:52:56,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:52:56,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:52:56,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:52:56,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:52:56,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:52:56,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:52:56,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:52:56,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:52:56,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:52:56,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:52:56,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:52:56,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:52:57,007 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:52:57,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:52:57,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:52:57,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:52:57,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:52:57,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:52:57,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:52:57,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:52:57,010 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:52:57,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:52:57,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:52:57,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:52:57,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:52:57,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:52:57,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:52:57,011 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:52:57,011 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:52:57,012 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:52:57,012 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:52:57,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:52:57,012 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:52:57,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:52:57,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:52:57,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:52:57,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:52:57,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:57,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:52:57,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:52:57,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:52:57,014 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:52:57,014 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:52:57,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:52:57,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:52:57,015 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:52:57,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:52:57,015 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:52:57,015 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:52:57,016 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffc1d4ff5146147535a8cadfa3671cd765ae4ddcb2dacc7af945329a570780ea [2022-12-13 20:52:57,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:52:57,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:52:57,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:52:57,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:52:57,280 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:52:57,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i [2022-12-13 20:52:59,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:53:00,085 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:53:00,085 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i [2022-12-13 20:53:00,100 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data/57451e1b7/0f1f5c6f78534e4bad8376d0b0ea095b/FLAG4a6fde333 [2022-12-13 20:53:00,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/data/57451e1b7/0f1f5c6f78534e4bad8376d0b0ea095b [2022-12-13 20:53:00,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:53:00,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:53:00,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:53:00,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:53:00,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:53:00,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72db35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00, skipping insertion in model container [2022-12-13 20:53:00,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:53:00,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:53:00,415 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:53:00,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:53:00,701 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:53:00,702 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:53:00,703 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:53:00,704 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:53:00,718 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:53:00,722 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:53:00,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:53:00,734 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:53:00,748 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:53:00,781 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:53:00,783 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:53:00,783 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:53:00,785 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:53:00,786 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:53:00,789 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:53:00,790 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:53:00,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:53:00,885 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:53:00,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00 WrapperNode [2022-12-13 20:53:00,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:53:00,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:53:00,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:53:00,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:53:00,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,934 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 20:53:00,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:53:00,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:53:00,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:53:00,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:53:00,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:53:00,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:53:00,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:53:00,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:53:00,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (1/1) ... [2022-12-13 20:53:00,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:53:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:53:00,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:53:00,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:53:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:53:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:53:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:53:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-13 20:53:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:53:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:53:01,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 20:53:01,136 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:53:01,138 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:53:01,261 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:53:01,267 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:53:01,267 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:53:01,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:53:01 BoogieIcfgContainer [2022-12-13 20:53:01,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:53:01,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:53:01,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:53:01,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:53:01,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:53:00" (1/3) ... [2022-12-13 20:53:01,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392817f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:53:01, skipping insertion in model container [2022-12-13 20:53:01,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:53:00" (2/3) ... [2022-12-13 20:53:01,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392817f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:53:01, skipping insertion in model container [2022-12-13 20:53:01,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:53:01" (3/3) ... [2022-12-13 20:53:01,277 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_11_bad.i [2022-12-13 20:53:01,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:53:01,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:53:01,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:53:01,335 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=PETRI_NET, 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;@7526fcf9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:53:01,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:53:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 20:53:01,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 20:53:01,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:53:01,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:01,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:53:01,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1814819498, now seen corresponding path program 1 times [2022-12-13 20:53:01,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:53:01,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989690105] [2022-12-13 20:53:01,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:01,368 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 [2022-12-13 20:53:01,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:53:01,369 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:53:01,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:53:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:01,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:53:01,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:53:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:53:01,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:53:01,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:53:01,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989690105] [2022-12-13 20:53:01,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989690105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:53:01,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:53:01,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:53:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588918562] [2022-12-13 20:53:01,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:53:01,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:53:01,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:53:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:53:01,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:53:01,554 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 20:53:01,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:53:01,588 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-12-13 20:53:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:53:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-12-13 20:53:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:53:01,595 INFO L225 Difference]: With dead ends: 51 [2022-12-13 20:53:01,595 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 20:53:01,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:53:01,599 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:53:01,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:53:01,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 20:53:01,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 20:53:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 20:53:01,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-13 20:53:01,624 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 20 [2022-12-13 20:53:01,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:53:01,625 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-13 20:53:01,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 20:53:01,625 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-13 20:53:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 20:53:01,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:53:01,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:01,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:53:01,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:53:01,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:53:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash -761264401, now seen corresponding path program 1 times [2022-12-13 20:53:01,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:53:01,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637860491] [2022-12-13 20:53:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:01,832 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 [2022-12-13 20:53:01,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:53:01,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:53:01,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:53:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:53:01,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:53:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:53:02,023 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:53:02,024 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:53:02,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:53:02,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:53:02,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 20:53:02,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:53:02,239 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:53:02,248 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:53:02,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:53:02 BoogieIcfgContainer [2022-12-13 20:53:02,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:53:02,289 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:53:02,289 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:53:02,289 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:53:02,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:53:01" (3/4) ... [2022-12-13 20:53:02,292 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:53:02,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:53:02,293 INFO L158 Benchmark]: Toolchain (without parser) took 2178.49ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 33.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-12-13 20:53:02,293 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:53:02,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.96ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 41.4MB in the end (delta: 1.1MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-12-13 20:53:02,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.49ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 38.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:53:02,294 INFO L158 Benchmark]: Boogie Preprocessor took 28.94ms. Allocated memory is still 67.1MB. Free memory was 38.2MB in the beginning and 36.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:53:02,294 INFO L158 Benchmark]: RCFGBuilder took 303.83ms. Allocated memory is still 67.1MB. Free memory was 36.3MB in the beginning and 36.9MB in the end (delta: -608.6kB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-12-13 20:53:02,294 INFO L158 Benchmark]: TraceAbstraction took 1017.60ms. Allocated memory is still 67.1MB. Free memory was 36.0MB in the beginning and 34.0MB in the end (delta: 2.0MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2022-12-13 20:53:02,295 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 67.1MB. Free memory was 33.7MB in the beginning and 33.4MB in the end (delta: 315.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:53:02,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.96ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 41.4MB in the end (delta: 1.1MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.49ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 38.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.94ms. Allocated memory is still 67.1MB. Free memory was 38.2MB in the beginning and 36.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.83ms. Allocated memory is still 67.1MB. Free memory was 36.3MB in the beginning and 36.9MB in the end (delta: -608.6kB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1017.60ms. Allocated memory is still 67.1MB. Free memory was 36.0MB in the beginning and 34.0MB in the end (delta: 2.0MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 67.1MB. Free memory was 33.7MB in the beginning and 33.4MB in the end (delta: 315.6kB). 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: 1570]: 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 CWE191_Integer_Underflow__int_fgets_multiply_11_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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [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=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1568] COND TRUE data < 0 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=-2147483648, 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, 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, 99 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 [2022-12-13 20:53:02,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_628be343-2a81-4164-9637-bdf18c3f96ed/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample