./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/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_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/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_5409719d-87c0-48fa-ba44-3230c9b5479e/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 de98058f8b89fd6510fa67c33bcc86c42a787a37b4dda1046d2af96b9857e9bf --- 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 21:44:17,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:44:17,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:44:17,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:44:17,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:44:17,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:44:17,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:44:17,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:44:17,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:44:17,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:44:17,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:44:17,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:44:17,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:44:17,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:44:17,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:44:17,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:44:17,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:44:17,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:44:17,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:44:17,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:44:17,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:44:17,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:44:17,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:44:17,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:44:17,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:44:17,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:44:17,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:44:17,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:44:17,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:44:17,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:44:17,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:44:17,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:44:17,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:44:17,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:44:17,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:44:17,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:44:17,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:44:17,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:44:17,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:44:17,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:44:17,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:44:17,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 21:44:17,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:44:17,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:44:17,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:44:17,883 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:44:17,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:44:17,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:44:17,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:44:17,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:44:17,895 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:44:17,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:44:17,895 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:44:17,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:44:17,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:44:17,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:44:17,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:44:17,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:44:17,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:44:17,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:44:17,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:44:17,898 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:44:17,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:44:17,898 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:44:17,898 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_5409719d-87c0-48fa-ba44-3230c9b5479e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de98058f8b89fd6510fa67c33bcc86c42a787a37b4dda1046d2af96b9857e9bf [2022-12-13 21:44:18,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:44:18,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:44:18,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:44:18,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:44:18,087 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:44:18,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i [2022-12-13 21:44:20,658 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:44:20,879 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:44:20,880 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i [2022-12-13 21:44:20,893 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/data/2458534b5/4784083807ab452cbe0b9ee569ada844/FLAG5746b55af [2022-12-13 21:44:21,224 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/data/2458534b5/4784083807ab452cbe0b9ee569ada844 [2022-12-13 21:44:21,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:44:21,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:44:21,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:44:21,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:44:21,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:44:21,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14a4983c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21, skipping insertion in model container [2022-12-13 21:44:21,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:44:21,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:44:21,482 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:44:21,752 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:44:21,756 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:44:21,758 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:44:21,759 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:44:21,760 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:44:21,778 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:44:21,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:44:21,786 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:44:21,798 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:44:21,826 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:44:21,827 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:44:21,828 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:44:21,830 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:44:21,830 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:44:21,833 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:44:21,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:44:21,949 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:44:21,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21 WrapperNode [2022-12-13 21:44:21,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:44:21,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:44:21,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:44:21,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:44:21,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,988 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-13 21:44:21,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:44:21,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:44:21,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:44:21,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:44:21,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:21,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:22,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:22,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:22,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:22,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:22,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:44:22,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:44:22,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:44:22,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:44:22,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (1/1) ... [2022-12-13 21:44:22,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:44:22,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:44:22,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:44:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:44:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 21:44:22,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 21:44:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:44:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:44:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:44:22,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:44:22,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:44:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:44:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 21:44:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:44:22,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:44:22,171 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:44:22,172 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:44:22,278 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:44:22,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:44:22,284 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:44:22,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:44:22 BoogieIcfgContainer [2022-12-13 21:44:22,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:44:22,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:44:22,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:44:22,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:44:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:44:21" (1/3) ... [2022-12-13 21:44:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d81565f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:44:22, skipping insertion in model container [2022-12-13 21:44:22,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:44:21" (2/3) ... [2022-12-13 21:44:22,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d81565f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:44:22, skipping insertion in model container [2022-12-13 21:44:22,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:44:22" (3/3) ... [2022-12-13 21:44:22,294 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i [2022-12-13 21:44:22,308 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:44:22,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 21:44:22,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:44:22,346 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;@51646d8e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:44:22,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 21:44:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 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 21:44:22,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 21:44:22,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:44:22,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:22,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:44:22,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:22,358 INFO L85 PathProgramCache]: Analyzing trace with hash -798313985, now seen corresponding path program 1 times [2022-12-13 21:44:22,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:22,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092473153] [2022-12-13 21:44:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:22,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:44:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:22,595 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 21:44:22,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:22,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092473153] [2022-12-13 21:44:22,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092473153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:22,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:44:22,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:44:22,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524249136] [2022-12-13 21:44:22,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:22,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:44:22,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:44:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:44:22,624 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 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) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 21:44:22,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:44:22,668 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2022-12-13 21:44:22,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:44:22,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-12-13 21:44:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:44:22,675 INFO L225 Difference]: With dead ends: 62 [2022-12-13 21:44:22,675 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 21:44:22,677 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 21:44:22,679 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:44:22,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 92 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:44:22,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 21:44:22,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-13 21:44:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 27 states have internal predecessors, (30), 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 21:44:22,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-12-13 21:44:22,703 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 11 [2022-12-13 21:44:22,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:44:22,704 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-12-13 21:44:22,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 21:44:22,704 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-12-13 21:44:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 21:44:22,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:44:22,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:22,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:44:22,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:44:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1473106299, now seen corresponding path program 1 times [2022-12-13 21:44:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:22,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325802861] [2022-12-13 21:44:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:44:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:44:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325802861] [2022-12-13 21:44:22,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325802861] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:44:22,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697224644] [2022-12-13 21:44:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:22,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:44:22,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:44:22,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:44:22,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:44:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:44:22,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:44:22,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:44:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:44:22,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:44:22,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697224644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:44:22,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:44:22,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 21:44:22,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789534905] [2022-12-13 21:44:22,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:44:22,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:44:22,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:44:22,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:44:22,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:44:22,940 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 21:44:22,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:44:22,960 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-12-13 21:44:22,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:44:22,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 15 [2022-12-13 21:44:22,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:44:22,961 INFO L225 Difference]: With dead ends: 43 [2022-12-13 21:44:22,961 INFO L226 Difference]: Without dead ends: 25 [2022-12-13 21:44:22,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:44:22,962 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:44:22,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:44:22,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-13 21:44:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-13 21:44:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 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 21:44:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-12-13 21:44:22,965 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2022-12-13 21:44:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:44:22,965 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-12-13 21:44:22,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 21:44:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-12-13 21:44:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 21:44:22,966 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:44:22,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:44:22,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:44:23,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:44:23,168 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:44:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:44:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1578396377, now seen corresponding path program 1 times [2022-12-13 21:44:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:44:23,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243817660] [2022-12-13 21:44:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:44:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:44:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:44:23,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:44:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:44:23,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:44:23,312 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:44:23,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-13 21:44:23,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-13 21:44:23,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-13 21:44:23,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-13 21:44:23,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-13 21:44:23,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-13 21:44:23,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:44:23,321 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 21:44:23,325 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:44:23,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:44:23 BoogieIcfgContainer [2022-12-13 21:44:23,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:44:23,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:44:23,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:44:23,347 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:44:23,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:44:22" (3/4) ... [2022-12-13 21:44:23,349 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 21:44:23,376 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:44:23,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:44:23,376 INFO L158 Benchmark]: Toolchain (without parser) took 2148.29ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 80.2MB in the beginning and 70.6MB in the end (delta: 9.6MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,377 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:44:23,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 720.63ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.8MB in the beginning and 102.0MB in the end (delta: -22.2MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.91ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 99.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,377 INFO L158 Benchmark]: Boogie Preprocessor took 18.87ms. Allocated memory is still 159.4MB. Free memory was 99.1MB in the beginning and 97.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,378 INFO L158 Benchmark]: RCFGBuilder took 278.04ms. Allocated memory is still 159.4MB. Free memory was 97.0MB in the beginning and 84.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,378 INFO L158 Benchmark]: TraceAbstraction took 1057.92ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 73.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,378 INFO L158 Benchmark]: Witness Printer took 29.03ms. Allocated memory is still 159.4MB. Free memory was 73.7MB in the beginning and 70.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:44:23,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 720.63ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.8MB in the beginning and 102.0MB in the end (delta: -22.2MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.91ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 99.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.87ms. Allocated memory is still 159.4MB. Free memory was 99.1MB in the beginning and 97.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.04ms. Allocated memory is still 159.4MB. Free memory was 97.0MB in the beginning and 84.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1057.92ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 73.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 29.03ms. Allocated memory is still 159.4MB. Free memory was 73.7MB in the beginning and 70.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1560]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741827:1073741830}, argv={1073741827:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_fscanf_sub_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1553] i++ VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1557] j = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1557] COND TRUE j < 1 [L1560] EXPR \read(data) VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1560] data - 1 VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: 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, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 53 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 1 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:44:23,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5409719d-87c0-48fa-ba44-3230c9b5479e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)