./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 --- 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 21:14:22,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:14:22,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:14:22,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:14:22,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:14:22,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:14:22,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:14:22,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:14:22,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:14:22,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:14:22,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:14:22,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:14:22,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:14:22,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:14:22,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:14:22,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:14:22,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:14:22,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:14:22,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:14:22,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:14:22,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:14:22,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:14:22,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:14:22,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:14:22,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:14:22,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:14:22,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:14:22,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:14:22,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:14:22,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:14:22,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:14:22,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:14:22,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:14:22,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:14:22,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:14:22,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:14:22,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:14:22,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:14:22,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:14:22,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:14:22,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:14:22,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 21:14:22,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:14:22,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:14:22,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:14:22,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:14:22,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:14:22,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:14:22,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:14:22,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:14:22,769 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:14:22,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:14:22,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:14:22,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:14:22,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:14:22,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:14:22,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:14:22,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:14:22,770 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 21:14:22,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:14:22,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:14:22,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:14:22,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:14:22,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:14:22,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:14:22,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:14:22,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:14:22,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:14:22,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:14:22,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:14:22,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:14:22,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:14:22,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:14:22,773 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:14:22,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:14:22,773 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:14:22,773 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_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 [2022-12-13 21:14:22,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:14:22,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:14:22,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:14:22,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:14:22,984 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:14:22,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2022-12-13 21:14:25,669 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:14:25,943 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:14:25,943 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2022-12-13 21:14:25,959 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data/390c5fa9f/730de89ec73e40b594e2880178b906a2/FLAG6e881a8a7 [2022-12-13 21:14:25,971 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data/390c5fa9f/730de89ec73e40b594e2880178b906a2 [2022-12-13 21:14:25,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:14:25,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:14:25,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:14:25,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:14:25,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:14:25,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:14:25" (1/1) ... [2022-12-13 21:14:25,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e360289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:25, skipping insertion in model container [2022-12-13 21:14:25,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:14:25" (1/1) ... [2022-12-13 21:14:25,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:14:26,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:14:26,267 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:14:26,551 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:14:26,556 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:26,558 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:26,561 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:26,562 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:26,583 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 21:14:26,586 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:14:26,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:14:26,595 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:14:26,614 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:14:26,651 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:14:26,652 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:26,654 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:26,656 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:26,657 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:26,662 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 21:14:26,663 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:14:26,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:14:26,789 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:14:26,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26 WrapperNode [2022-12-13 21:14:26,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:14:26,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:14:26,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:14:26,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:14:26,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,848 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 21:14:26,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:14:26,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:14:26,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:14:26,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:14:26,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:14:26,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:14:26,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:14:26,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:14:26,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (1/1) ... [2022-12-13 21:14:26,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:14:26,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:14:26,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:14:26,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:14:26,935 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 21:14:26,935 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 21:14:26,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 21:14:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:14:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 21:14:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:14:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:14:26,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:14:26,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:14:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 21:14:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:14:27,062 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:14:27,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:14:27,176 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:14:27,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:14:27,182 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:14:27,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:14:27 BoogieIcfgContainer [2022-12-13 21:14:27,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:14:27,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:14:27,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:14:27,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:14:27,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:14:25" (1/3) ... [2022-12-13 21:14:27,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c7257d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:14:27, skipping insertion in model container [2022-12-13 21:14:27,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:26" (2/3) ... [2022-12-13 21:14:27,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c7257d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:14:27, skipping insertion in model container [2022-12-13 21:14:27,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:14:27" (3/3) ... [2022-12-13 21:14:27,192 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2022-12-13 21:14:27,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:14:27,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:14:27,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:14:27,253 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;@49fa530e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:14:27,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 21:14:27,256 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 21:14:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 21:14:27,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:14:27,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:14:27,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 21:14:27,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:14:27,268 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 21:14:27,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:14:27,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944868883] [2022-12-13 21:14:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:14:27,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:14:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:14:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:27,551 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 21:14:27,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:14:27,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944868883] [2022-12-13 21:14:27,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944868883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:14:27,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:14:27,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:14:27,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798472484] [2022-12-13 21:14:27,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:14:27,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:14:27,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:14:27,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:14:27,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:14:27,586 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 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 21:14:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:14:27,627 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-12-13 21:14:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:14:27,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 21:14:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:14:27,634 INFO L225 Difference]: With dead ends: 24 [2022-12-13 21:14:27,634 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 21:14:27,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:14:27,638 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:14:27,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 47 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:14:27,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 21:14:27,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 21:14:27,662 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 21:14:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 21:14:27,663 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 21:14:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:14:27,664 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 21:14:27,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 21:14:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 21:14:27,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 21:14:27,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:14:27,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:14:27,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:14:27,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 21:14:27,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:14:27,667 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-13 21:14:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:14:27,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499293069] [2022-12-13 21:14:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:14:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:14:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:14:27,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:14:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:14:27,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:14:27,714 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:14:27,715 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 21:14:27,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 21:14:27,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:14:27,719 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 21:14:27,722 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:14:27,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:14:27 BoogieIcfgContainer [2022-12-13 21:14:27,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:14:27,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:14:27,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:14:27,740 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:14:27,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:14:27" (3/4) ... [2022-12-13 21:14:27,742 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:14:27,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:14:27,743 INFO L158 Benchmark]: Toolchain (without parser) took 1768.70ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 102.6MB in the beginning and 83.6MB in the end (delta: 19.0MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-12-13 21:14:27,743 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 142.6MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:14:27,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 815.05ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 102.6MB in the beginning and 140.2MB in the end (delta: -37.6MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2022-12-13 21:14:27,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.71ms. Allocated memory is still 182.5MB. Free memory was 140.2MB in the beginning and 138.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:14:27,745 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 182.5MB. Free memory was 137.0MB in the beginning and 136.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:14:27,745 INFO L158 Benchmark]: RCFGBuilder took 309.63ms. Allocated memory is still 182.5MB. Free memory was 136.0MB in the beginning and 123.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:14:27,745 INFO L158 Benchmark]: TraceAbstraction took 552.23ms. Allocated memory is still 182.5MB. Free memory was 122.4MB in the beginning and 83.6MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 21:14:27,746 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 182.5MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:14:27,747 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 142.6MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 815.05ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 102.6MB in the beginning and 140.2MB in the end (delta: -37.6MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.71ms. Allocated memory is still 182.5MB. Free memory was 140.2MB in the beginning and 138.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 182.5MB. Free memory was 137.0MB in the beginning and 136.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.63ms. Allocated memory is still 182.5MB. Free memory was 136.0MB in the beginning and 123.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 552.23ms. Allocated memory is still 182.5MB. Free memory was 122.4MB in the beginning and 83.6MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 182.5MB. Free memory is still 83.6MB. 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567. 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); [L1548] static int badStatic = 0; VAL [badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [badStatic=0, 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483651:2147483654}, argv={2147483651:2147483654}, badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1574] badStatic = 1 [L1575] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [\old(data)=2147483647, badStatic=1, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data + 1 VAL [\old(data)=2147483647, badStatic=1, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 23 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 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 21:14:27,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 --- 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 21:14:29,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:14:29,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:14:29,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:14:29,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:14:29,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:14:29,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:14:29,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:14:29,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:14:29,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:14:29,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:14:29,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:14:29,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:14:29,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:14:29,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:14:29,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:14:29,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:14:29,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:14:29,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:14:29,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:14:29,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:14:29,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:14:29,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:14:29,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:14:29,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:14:29,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:14:29,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:14:29,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:14:29,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:14:29,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:14:29,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:14:29,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:14:29,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:14:29,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:14:29,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:14:29,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:14:29,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:14:29,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:14:29,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:14:29,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:14:29,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:14:29,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 21:14:29,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:14:29,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:14:29,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:14:29,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:14:29,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:14:29,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:14:29,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:14:29,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:14:29,553 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:14:29,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:14:29,553 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:14:29,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:14:29,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:14:29,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:14:29,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:14:29,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:14:29,555 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:14:29,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:14:29,556 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:14:29,556 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:14:29,556 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_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 [2022-12-13 21:14:29,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:14:29,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:14:29,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:14:29,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:14:29,853 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:14:29,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2022-12-13 21:14:32,417 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:14:32,667 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:14:32,667 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2022-12-13 21:14:32,680 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data/00ac85816/8b358d12db214c43bc989b2cabf0e626/FLAG480ceb033 [2022-12-13 21:14:32,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/data/00ac85816/8b358d12db214c43bc989b2cabf0e626 [2022-12-13 21:14:32,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:14:32,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:14:32,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:14:32,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:14:32,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:14:32,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:14:32" (1/1) ... [2022-12-13 21:14:32,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667a5afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:32, skipping insertion in model container [2022-12-13 21:14:32,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:14:32" (1/1) ... [2022-12-13 21:14:32,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:14:32,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:14:32,994 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:14:33,362 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:14:33,366 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:33,367 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:33,369 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:33,370 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:33,389 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 21:14:33,392 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:14:33,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:14:33,407 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:14:33,431 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:14:33,459 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:14:33,460 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:33,461 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:14:33,463 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:33,463 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:14:33,466 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 21:14:33,467 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:14:33,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:14:33,557 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:14:33,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33 WrapperNode [2022-12-13 21:14:33,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:14:33,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:14:33,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:14:33,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:14:33,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,606 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2022-12-13 21:14:33,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:14:33,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:14:33,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:14:33,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:14:33,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:14:33,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:14:33,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:14:33,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:14:33,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (1/1) ... [2022-12-13 21:14:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:14:33,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:14:33,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:14:33,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:14:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 21:14:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 21:14:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 21:14:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:14:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 21:14:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:14:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:14:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:14:33,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:14:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 21:14:33,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 21:14:33,826 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:14:33,827 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:14:33,952 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:14:33,958 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:14:33,958 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:14:33,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:14:33 BoogieIcfgContainer [2022-12-13 21:14:33,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:14:33,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:14:33,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:14:33,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:14:33,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:14:32" (1/3) ... [2022-12-13 21:14:33,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49beed7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:14:33, skipping insertion in model container [2022-12-13 21:14:33,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:14:33" (2/3) ... [2022-12-13 21:14:33,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49beed7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:14:33, skipping insertion in model container [2022-12-13 21:14:33,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:14:33" (3/3) ... [2022-12-13 21:14:33,969 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2022-12-13 21:14:33,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:14:33,988 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 21:14:34,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:14:34,041 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;@9158abb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:14:34,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 21:14:34,045 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 21:14:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 21:14:34,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:14:34,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:14:34,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 21:14:34,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:14:34,055 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 21:14:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:14:34,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916613715] [2022-12-13 21:14:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:14:34,068 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 21:14:34,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:14:34,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:14:34,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:14:34,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:14:34,224 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 21:14:34,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:14:34,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:14:34,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916613715] [2022-12-13 21:14:34,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916613715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:14:34,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:14:34,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:14:34,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287311261] [2022-12-13 21:14:34,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:14:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:14:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:14:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:14:34,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:14:34,261 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 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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 21:14:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:14:34,276 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-12-13 21:14:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:14:34,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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 21:14:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:14:34,283 INFO L225 Difference]: With dead ends: 24 [2022-12-13 21:14:34,283 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 21:14:34,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:14:34,288 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:14:34,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:14:34,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 21:14:34,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 21:14:34,312 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 21:14:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 21:14:34,313 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 21:14:34,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:14:34,314 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 21:14:34,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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 21:14:34,315 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 21:14:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 21:14:34,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:14:34,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:14:34,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 21:14:34,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:14:34,517 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-12-13 21:14:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:14:34,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294968611] [2022-12-13 21:14:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:14:34,518 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 21:14:34,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:14:34,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:14:34,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:14:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:14:34,659 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 21:14:34,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:14:34,661 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 21:14:34,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 21:14:34,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 21:14:34,873 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 21:14:34,883 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:14:34,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:14:34 BoogieIcfgContainer [2022-12-13 21:14:34,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:14:34,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:14:34,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:14:34,939 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:14:34,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:14:33" (3/4) ... [2022-12-13 21:14:34,942 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:14:34,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:14:34,943 INFO L158 Benchmark]: Toolchain (without parser) took 2248.50ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 41.8MB in the end (delta: -6.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-13 21:14:34,943 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:14:34,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 863.36ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 35.9MB in the end (delta: -695.2kB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-13 21:14:34,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.24ms. Allocated memory is still 73.4MB. Free memory was 35.9MB in the beginning and 32.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:14:34,944 INFO L158 Benchmark]: Boogie Preprocessor took 27.83ms. Allocated memory is still 73.4MB. Free memory was 32.7MB in the beginning and 31.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:14:34,945 INFO L158 Benchmark]: RCFGBuilder took 324.94ms. Allocated memory is still 73.4MB. Free memory was 30.7MB in the beginning and 34.8MB in the end (delta: -4.1MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-12-13 21:14:34,945 INFO L158 Benchmark]: TraceAbstraction took 974.91ms. Allocated memory is still 73.4MB. Free memory was 34.0MB in the beginning and 42.2MB in the end (delta: -8.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2022-12-13 21:14:34,946 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 41.8MB in the end (delta: 353.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:14:34,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.8MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 863.36ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 35.9MB in the end (delta: -695.2kB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.24ms. Allocated memory is still 73.4MB. Free memory was 35.9MB in the beginning and 32.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.83ms. Allocated memory is still 73.4MB. Free memory was 32.7MB in the beginning and 31.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.94ms. Allocated memory is still 73.4MB. Free memory was 30.7MB in the beginning and 34.8MB in the end (delta: -4.1MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * TraceAbstraction took 974.91ms. Allocated memory is still 73.4MB. Free memory was 34.0MB in the beginning and 42.2MB in the end (delta: -8.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 73.4MB. Free memory was 42.2MB in the beginning and 41.8MB in the end (delta: 353.4kB). 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567. 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); [L1548] static int badStatic = 0; VAL [badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [badStatic=0, 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1574] badStatic = 1 [L1575] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [\old(data)=2147483647, badStatic=1, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data + 1 VAL [\old(data)=2147483647, badStatic=1, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 27 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:14:34,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a17e737a-98e6-4e20-8fc6-a53d736cbfe4/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample