./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 --- 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 20:54:07,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:54:07,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:54:07,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:54:07,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:54:07,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:54:07,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:54:07,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:54:07,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:54:07,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:54:07,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:54:07,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:54:07,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:54:07,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:54:07,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:54:07,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:54:07,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:54:07,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:54:07,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:54:07,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:54:07,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:54:07,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:54:07,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:54:07,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:54:07,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:54:07,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:54:07,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:54:07,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:54:07,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:54:07,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:54:07,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:54:07,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:54:07,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:54:07,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:54:07,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:54:07,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:54:07,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:54:07,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:54:07,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:54:07,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:54:07,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:54:07,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:54:07,925 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:54:07,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:54:07,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:54:07,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:54:07,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:54:07,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:54:07,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:54:07,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:54:07,938 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:54:07,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:54:07,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:54:07,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:54:07,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:54:07,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:54:07,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:54:07,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:54:07,940 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:54:07,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:54:07,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:54:07,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:54:07,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:54:07,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:54:07,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:54:07,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:54:07,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:54:07,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:54:07,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:54:07,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:54:07,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:54:07,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:54:07,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:54:07,942 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:54:07,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:54:07,942 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:54:07,943 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_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 [2022-12-13 20:54:08,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:54:08,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:54:08,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:54:08,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:54:08,155 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:54:08,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2022-12-13 20:54:10,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:54:11,072 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:54:11,073 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2022-12-13 20:54:11,088 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data/3b102bcd8/44081711e6554a0ba3f50fa108d98771/FLAG3673d7f86 [2022-12-13 20:54:11,343 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data/3b102bcd8/44081711e6554a0ba3f50fa108d98771 [2022-12-13 20:54:11,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:54:11,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:54:11,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:54:11,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:54:11,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:54:11,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:54:11" (1/1) ... [2022-12-13 20:54:11,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfc90cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:11, skipping insertion in model container [2022-12-13 20:54:11,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:54:11" (1/1) ... [2022-12-13 20:54:11,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:54:11,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:54:11,624 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:54:11,931 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:54:11,935 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:11,937 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:11,939 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:11,939 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:11,960 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:54:11,966 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:54:11,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:54:11,975 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:54:11,992 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:54:12,025 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:54:12,027 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:12,028 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:12,030 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:12,031 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:12,036 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:54:12,038 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:54:12,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:54:12,184 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:54:12,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12 WrapperNode [2022-12-13 20:54:12,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:54:12,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:54:12,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:54:12,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:54:12,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,236 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 20:54:12,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:54:12,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:54:12,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:54:12,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:54:12,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:54:12,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:54:12,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:54:12,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:54:12,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (1/1) ... [2022-12-13 20:54:12,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:54:12,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:54:12,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:54:12,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:54:12,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:54:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:54:12,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:54:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:54:12,411 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:54:12,413 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:54:12,518 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:54:12,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:54:12,524 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:54:12,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:12 BoogieIcfgContainer [2022-12-13 20:54:12,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:54:12,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:54:12,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:54:12,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:54:12,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:54:11" (1/3) ... [2022-12-13 20:54:12,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e81e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:54:12, skipping insertion in model container [2022-12-13 20:54:12,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:12" (2/3) ... [2022-12-13 20:54:12,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e81e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:54:12, skipping insertion in model container [2022-12-13 20:54:12,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:12" (3/3) ... [2022-12-13 20:54:12,534 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2022-12-13 20:54:12,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:54:12,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:54:12,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:54:12,587 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;@29c488a0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:54:12,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:54:12,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:54:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:54:12,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:12,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:12,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:54:12,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 20:54:12,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:12,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747865223] [2022-12-13 20:54:12,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:12,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:54:12,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:12,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747865223] [2022-12-13 20:54:12,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747865223] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:12,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:12,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:54:12,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011741434] [2022-12-13 20:54:12,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:12,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:54:12,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:12,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:54:12,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:12,838 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:54:12,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:54:12,862 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-12-13 20:54:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:54:12,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 20:54:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:54:12,868 INFO L225 Difference]: With dead ends: 31 [2022-12-13 20:54:12,868 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 20:54:12,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:12,872 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 51 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 20:54:12,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:54:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 20:54:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 20:54:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:54:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 20:54:12,895 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 20:54:12,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:54:12,896 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 20:54:12,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:54:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 20:54:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 20:54:12,897 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:12,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:12,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:54:12,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:54:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:12,898 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-13 20:54:12,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:12,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168101383] [2022-12-13 20:54:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:54:12,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:54:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:54:12,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:54:12,980 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:54:12,982 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:54:12,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:54:12,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:54:12,987 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:54:12,991 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:54:13,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:54:13 BoogieIcfgContainer [2022-12-13 20:54:13,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:54:13,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:54:13,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:54:13,015 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:54:13,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:12" (3/4) ... [2022-12-13 20:54:13,019 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:54:13,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:54:13,019 INFO L158 Benchmark]: Toolchain (without parser) took 1673.76ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 113.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-12-13 20:54:13,019 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:13,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.84ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 110.7MB in the end (delta: 5.7MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. [2022-12-13 20:54:13,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.69ms. Allocated memory is still 153.1MB. Free memory was 110.7MB in the beginning and 107.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:54:13,021 INFO L158 Benchmark]: Boogie Preprocessor took 24.08ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 106.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:13,021 INFO L158 Benchmark]: RCFGBuilder took 264.53ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 92.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 20:54:13,021 INFO L158 Benchmark]: TraceAbstraction took 485.59ms. Allocated memory is still 153.1MB. Free memory was 91.8MB in the beginning and 113.7MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:13,021 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 153.1MB. Free memory is still 113.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:13,024 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.84ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 110.7MB in the end (delta: 5.7MB). Peak memory consumption was 59.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.69ms. Allocated memory is still 153.1MB. Free memory was 110.7MB in the beginning and 107.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.08ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 106.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.53ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 92.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 485.59ms. Allocated memory is still 153.1MB. Free memory was 91.8MB in the beginning and 113.7MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 153.1MB. Free memory is still 113.7MB. 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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] [L1582] 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) [L1582] RET printLine("Calling bad()...") VAL [\old(argc)=1073741831, argc=1073741831, argv={1073741828:1073741832}, argv={1073741828:1073741832}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] CALL CWE190_Integer_Overflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data > 0 VAL [data=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] [L1574] data * 2 VAL [data=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] - UnprovableResult [Line: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, 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, 9 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:54:13,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 --- 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 20:54:14,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:54:14,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:54:14,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:54:14,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:54:14,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:54:14,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:54:14,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:54:14,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:54:14,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:54:14,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:54:14,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:54:14,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:54:14,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:54:14,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:54:14,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:54:14,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:54:14,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:54:14,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:54:14,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:54:14,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:54:14,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:54:14,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:54:14,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:54:14,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:54:14,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:54:14,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:54:14,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:54:14,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:54:14,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:54:14,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:54:14,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:54:14,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:54:14,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:54:14,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:54:14,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:54:14,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:54:14,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:54:14,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:54:14,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:54:14,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:54:14,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:54:14,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:54:14,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:54:14,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:54:14,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:54:14,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:54:14,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:54:14,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:54:14,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:54:14,974 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:54:14,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:54:14,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:54:14,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:54:14,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:54:14,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:54:14,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:54:14,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:54:14,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:54:14,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:54:14,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:54:14,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:54:14,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:54:14,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:54:14,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:54:14,977 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:54:14,977 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:54:14,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:54:14,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:54:14,982 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:54:14,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:54:14,982 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:54:14,982 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:54:14,982 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_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 [2022-12-13 20:54:15,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:54:15,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:54:15,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:54:15,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:54:15,232 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:54:15,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2022-12-13 20:54:17,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:54:17,986 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:54:17,986 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2022-12-13 20:54:17,999 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data/88f80e8cd/d398a8da27374daa8b0f351870446fca/FLAG01f79c37f [2022-12-13 20:54:18,011 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/data/88f80e8cd/d398a8da27374daa8b0f351870446fca [2022-12-13 20:54:18,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:54:18,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:54:18,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:54:18,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:54:18,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:54:18,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:18,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5677f0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18, skipping insertion in model container [2022-12-13 20:54:18,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:18,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:54:18,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:54:18,384 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:54:18,730 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:54:18,735 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:18,737 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:18,739 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:18,740 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:18,757 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:54:18,762 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:54:18,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:54:18,778 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:54:18,796 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:54:18,830 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:54:18,831 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:18,832 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:54:18,834 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:18,834 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:54:18,837 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:54:18,839 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:54:18,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:54:18,936 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:54:18,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18 WrapperNode [2022-12-13 20:54:18,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:54:18,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:54:18,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:54:18,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:54:18,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:18,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:18,995 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-13 20:54:18,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:54:18,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:54:18,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:54:18,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:54:19,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:54:19,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:54:19,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:54:19,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:54:19,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (1/1) ... [2022-12-13 20:54:19,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:54:19,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:54:19,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:54:19,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:54:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:54:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:54:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:54:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:54:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:54:19,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:54:19,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 20:54:19,198 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:54:19,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:54:19,342 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:54:19,348 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:54:19,348 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:54:19,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:19 BoogieIcfgContainer [2022-12-13 20:54:19,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:54:19,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:54:19,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:54:19,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:54:19,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:54:18" (1/3) ... [2022-12-13 20:54:19,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c91abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:54:19, skipping insertion in model container [2022-12-13 20:54:19,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:54:18" (2/3) ... [2022-12-13 20:54:19,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c91abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:54:19, skipping insertion in model container [2022-12-13 20:54:19,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:19" (3/3) ... [2022-12-13 20:54:19,358 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2022-12-13 20:54:19,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:54:19,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:54:19,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:54:19,424 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;@5e05f36d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:54:19,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:54:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:54:19,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:54:19,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:19,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:19,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:54:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:19,446 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 20:54:19,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:54:19,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598839252] [2022-12-13 20:54:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:19,459 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 20:54:19,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:54:19,461 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:19,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:19,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:54:19,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:54:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:54:19,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:54:19,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:54:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598839252] [2022-12-13 20:54:19,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598839252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:19,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:19,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:54:19,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924839482] [2022-12-13 20:54:19,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:19,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:54:19,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:54:19,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:54:19,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:19,648 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:54:19,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:54:19,690 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-12-13 20:54:19,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:54:19,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 20:54:19,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:54:19,698 INFO L225 Difference]: With dead ends: 31 [2022-12-13 20:54:19,698 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 20:54:19,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:54:19,702 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 48 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 20:54:19,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:54:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 20:54:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 20:54:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:54:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 20:54:19,728 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 20:54:19,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:54:19,729 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 20:54:19,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:54:19,729 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 20:54:19,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 20:54:19,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:19,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:19,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:19,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:19,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:54:19,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:19,934 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-13 20:54:19,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:54:19,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293318689] [2022-12-13 20:54:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:19,937 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 20:54:19,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:54:19,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:19,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:54:20,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:54:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:54:20,254 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:54:20,254 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:54:20,256 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:54:20,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:54:20,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:20,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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 20:54:20,469 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:54:20,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:54:20,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:54:20 BoogieIcfgContainer [2022-12-13 20:54:20,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:54:20,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:54:20,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:54:20,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:54:20,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:54:19" (3/4) ... [2022-12-13 20:54:20,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:54:20,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:54:20,566 INFO L158 Benchmark]: Toolchain (without parser) took 2551.49ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.5MB in the beginning and 41.5MB in the end (delta: -2.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-12-13 20:54:20,567 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:20,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 921.65ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.3MB in the beginning and 35.2MB in the end (delta: 4.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 20:54:20,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.65ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 32.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:54:20,569 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 73.4MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:54:20,570 INFO L158 Benchmark]: RCFGBuilder took 330.29ms. Allocated memory is still 73.4MB. Free memory was 29.9MB in the beginning and 33.6MB in the end (delta: -3.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-12-13 20:54:20,571 INFO L158 Benchmark]: TraceAbstraction took 1204.95ms. Allocated memory is still 73.4MB. Free memory was 33.0MB in the beginning and 41.7MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:20,571 INFO L158 Benchmark]: Witness Printer took 6.84ms. Allocated memory is still 73.4MB. Free memory was 41.7MB in the beginning and 41.5MB in the end (delta: 273.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:54:20,575 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 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 921.65ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.3MB in the beginning and 35.2MB in the end (delta: 4.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.65ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 32.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 73.4MB. Free memory was 32.0MB in the beginning and 29.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.29ms. Allocated memory is still 73.4MB. Free memory was 29.9MB in the beginning and 33.6MB in the end (delta: -3.7MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1204.95ms. Allocated memory is still 73.4MB. Free memory was 33.0MB in the beginning and 41.7MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.84ms. Allocated memory is still 73.4MB. Free memory was 41.7MB in the beginning and 41.5MB in the end (delta: 273.4kB). 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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] [L1582] 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) [L1582] 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] [L1583] CALL CWE190_Integer_Overflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data > 0 VAL [data=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] [L1574] data * 2 VAL [data=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] - UnprovableResult [Line: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, 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, 9 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:54:20,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa1f2e85-4620-4b60-8eaf-f72aa1688af6/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