./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_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_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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_e31400d0-2de3-4533-8840-b88ae8de2310/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 4d793b2a4f426db247cca2c919aa14670e96346614ddfc42a4546ab86f225ef0 --- 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 16:02:38,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:02:38,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:02:38,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:02:38,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:02:38,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:02:38,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:02:38,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:02:38,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:02:38,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:02:38,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:02:38,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:02:38,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:02:38,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:02:38,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:02:38,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:02:38,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:02:38,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:02:38,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:02:38,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:02:38,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:02:38,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:02:38,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:02:38,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:02:38,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:02:38,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:02:38,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:02:38,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:02:38,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:02:38,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:02:38,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:02:38,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:02:38,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:02:38,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:02:38,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:02:38,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:02:38,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:02:38,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:02:38,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:02:38,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:02:38,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:02:38,940 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 16:02:38,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:02:38,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:02:38,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:02:38,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:02:38,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:02:38,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:02:38,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:02:38,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:02:38,959 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:02:38,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:02:38,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:02:38,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:02:38,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:02:38,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:02:38,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:02:38,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:02:38,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:02:38,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:02:38,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:02:38,962 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:02:38,962 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_e31400d0-2de3-4533-8840-b88ae8de2310/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d793b2a4f426db247cca2c919aa14670e96346614ddfc42a4546ab86f225ef0 [2022-12-13 16:02:39,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:02:39,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:02:39,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:02:39,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:02:39,166 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:02:39,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_bad.i [2022-12-13 16:02:41,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:02:42,050 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:02:42,051 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_bad.i [2022-12-13 16:02:42,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data/ae68f5c98/2ee7483e8759404ca1bcd309b8f9f97d/FLAG74cdc3ae4 [2022-12-13 16:02:42,079 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data/ae68f5c98/2ee7483e8759404ca1bcd309b8f9f97d [2022-12-13 16:02:42,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:02:42,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:02:42,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:02:42,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:02:42,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:02:42,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0fd6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42, skipping insertion in model container [2022-12-13 16:02:42,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:02:42,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:02:42,367 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:02:42,647 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:02:42,652 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:42,654 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:42,656 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:42,657 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:42,682 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:02:42,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:02:42,692 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:02:42,707 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:02:42,735 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:02:42,736 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:42,737 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:42,738 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:42,739 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:42,742 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:02:42,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:02:42,849 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:02:42,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42 WrapperNode [2022-12-13 16:02:42,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:02:42,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:02:42,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:02:42,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:02:42,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,891 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-13 16:02:42,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:02:42,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:02:42,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:02:42,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:02:42,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:02:42,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:02:42,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:02:42,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:02:42,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (1/1) ... [2022-12-13 16:02:42,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:02:42,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:02:42,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:02:42,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:02:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:02:42,968 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:02:42,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:02:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:02:42,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:02:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:02:42,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:02:43,076 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:02:43,078 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:02:43,195 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:02:43,199 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:02:43,200 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:02:43,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:02:43 BoogieIcfgContainer [2022-12-13 16:02:43,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:02:43,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:02:43,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:02:43,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:02:43,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:02:42" (1/3) ... [2022-12-13 16:02:43,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bde348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:02:43, skipping insertion in model container [2022-12-13 16:02:43,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:42" (2/3) ... [2022-12-13 16:02:43,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bde348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:02:43, skipping insertion in model container [2022-12-13 16:02:43,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:02:43" (3/3) ... [2022-12-13 16:02:43,208 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_13_bad.i [2022-12-13 16:02:43,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:02:43,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:02:43,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:02:43,263 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;@652197cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:02:43,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:02:43,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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 16:02:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:02:43,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:43,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:02:43,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:02:43,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:43,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1258159597, now seen corresponding path program 1 times [2022-12-13 16:02:43,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:02:43,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297046972] [2022-12-13 16:02:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:43,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:02:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:02:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:43,451 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 16:02:43,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:02:43,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297046972] [2022-12-13 16:02:43,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297046972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:43,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:43,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:02:43,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345993634] [2022-12-13 16:02:43,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:43,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:02:43,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:02:43,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:02:43,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:02:43,480 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:02:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:43,501 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-12-13 16:02:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:02:43,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 16:02:43,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:43,508 INFO L225 Difference]: With dead ends: 41 [2022-12-13 16:02:43,508 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 16:02:43,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:02:43,512 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:43,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:02:43,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 16:02:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 16:02:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 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 16:02:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-12-13 16:02:43,538 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2022-12-13 16:02:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:43,538 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-12-13 16:02:43,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:02:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-12-13 16:02:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 16:02:43,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:43,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:02:43,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:02:43,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:02:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1822236216, now seen corresponding path program 1 times [2022-12-13 16:02:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:02:43,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217097433] [2022-12-13 16:02:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:43,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:02:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:02:43,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:02:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:02:43,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:02:43,617 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:02:43,618 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:02:43,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:02:43,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:02:43,623 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:02:43,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:02:43,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:02:43 BoogieIcfgContainer [2022-12-13 16:02:43,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:02:43,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:02:43,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:02:43,645 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:02:43,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:02:43" (3/4) ... [2022-12-13 16:02:43,648 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:02:43,648 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:02:43,649 INFO L158 Benchmark]: Toolchain (without parser) took 1567.29ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 104.3MB in the beginning and 77.4MB in the end (delta: 26.9MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-12-13 16:02:43,649 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 111.6MB in the end (delta: 153.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:02:43,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.05ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 103.9MB in the beginning and 130.8MB in the end (delta: -26.9MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-12-13 16:02:43,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.28ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 127.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:02:43,650 INFO L158 Benchmark]: Boogie Preprocessor took 18.56ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 126.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:02:43,651 INFO L158 Benchmark]: RCFGBuilder took 290.17ms. Allocated memory is still 172.0MB. Free memory was 126.6MB in the beginning and 113.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:02:43,651 INFO L158 Benchmark]: TraceAbstraction took 441.26ms. Allocated memory is still 172.0MB. Free memory was 111.9MB in the beginning and 78.4MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 16:02:43,651 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 172.0MB. Free memory was 78.4MB in the beginning and 77.4MB in the end (delta: 969.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:02:43,653 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 142.6MB. Free memory was 111.8MB in the beginning and 111.6MB in the end (delta: 153.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.05ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 103.9MB in the beginning and 130.8MB in the end (delta: -26.9MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.28ms. Allocated memory is still 172.0MB. Free memory was 130.8MB in the beginning and 127.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.56ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 126.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.17ms. Allocated memory is still 172.0MB. Free memory was 126.6MB in the beginning and 113.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 441.26ms. Allocated memory is still 172.0MB. Free memory was 111.9MB in the beginning and 78.4MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 172.0MB. Free memory was 78.4MB in the beginning and 77.4MB in the end (delta: 969.3kB). 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: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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)=3221225473, argc=3221225473, argv={3221225472:3221225474}, argv={3221225472:3221225474}, 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_rand_multiply_13_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=4, rand()=1, rand()=1, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=3221225471] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE GLOBAL_CONST_FIVE==5 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 25 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 16:02:43,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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_e31400d0-2de3-4533-8840-b88ae8de2310/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 4d793b2a4f426db247cca2c919aa14670e96346614ddfc42a4546ab86f225ef0 --- 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 16:02:45,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:02:45,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:02:45,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:02:45,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:02:45,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:02:45,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:02:45,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:02:45,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:02:45,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:02:45,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:02:45,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:02:45,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:02:45,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:02:45,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:02:45,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:02:45,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:02:45,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:02:45,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:02:45,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:02:45,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:02:45,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:02:45,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:02:45,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:02:45,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:02:45,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:02:45,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:02:45,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:02:45,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:02:45,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:02:45,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:02:45,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:02:45,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:02:45,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:02:45,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:02:45,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:02:45,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:02:45,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:02:45,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:02:45,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:02:45,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:02:45,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 16:02:45,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:02:45,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:02:45,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:02:45,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:02:45,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:02:45,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:02:45,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:02:45,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:02:45,286 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:02:45,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:02:45,287 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:02:45,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:02:45,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:02:45,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:02:45,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:02:45,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:02:45,288 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:02:45,288 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:02:45,288 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:02:45,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:02:45,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:02:45,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:02:45,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:02:45,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:02:45,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:02:45,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:02:45,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:02:45,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:02:45,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:02:45,290 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:02:45,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:02:45,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:02:45,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:02:45,291 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:02:45,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:02:45,291 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:02:45,291 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:02:45,291 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_e31400d0-2de3-4533-8840-b88ae8de2310/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d793b2a4f426db247cca2c919aa14670e96346614ddfc42a4546ab86f225ef0 [2022-12-13 16:02:45,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:02:45,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:02:45,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:02:45,519 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:02:45,520 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:02:45,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_bad.i [2022-12-13 16:02:48,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:02:48,332 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:02:48,339 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_13_bad.i [2022-12-13 16:02:48,358 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data/e7bb00a18/d68b076a040d42e3ad5736fdc982043f/FLAG8c552e58f [2022-12-13 16:02:48,369 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/data/e7bb00a18/d68b076a040d42e3ad5736fdc982043f [2022-12-13 16:02:48,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:02:48,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:02:48,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:02:48,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:02:48,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:02:48,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:02:48" (1/1) ... [2022-12-13 16:02:48,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9d8891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:48, skipping insertion in model container [2022-12-13 16:02:48,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:02:48" (1/1) ... [2022-12-13 16:02:48,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:02:48,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:02:48,622 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:02:48,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:02:48,927 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:48,928 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:48,929 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:48,930 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:48,945 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:02:48,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:02:48,955 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:02:48,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:02:49,001 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:02:49,002 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:49,002 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:02:49,004 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:49,004 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:02:49,011 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:02:49,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:02:49,101 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:02:49,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49 WrapperNode [2022-12-13 16:02:49,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:02:49,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:02:49,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:02:49,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:02:49,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,148 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-13 16:02:49,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:02:49,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:02:49,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:02:49,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:02:49,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:02:49,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:02:49,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:02:49,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:02:49,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (1/1) ... [2022-12-13 16:02:49,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:02:49,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:02:49,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:02:49,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:02:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:02:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:02:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:02:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:02:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:02:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:02:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:02:49,367 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:02:49,369 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:02:49,488 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:02:49,494 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:02:49,494 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:02:49,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:02:49 BoogieIcfgContainer [2022-12-13 16:02:49,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:02:49,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:02:49,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:02:49,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:02:49,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:02:48" (1/3) ... [2022-12-13 16:02:49,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faba8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:02:49, skipping insertion in model container [2022-12-13 16:02:49,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:02:49" (2/3) ... [2022-12-13 16:02:49,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faba8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:02:49, skipping insertion in model container [2022-12-13 16:02:49,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:02:49" (3/3) ... [2022-12-13 16:02:49,505 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_13_bad.i [2022-12-13 16:02:49,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:02:49,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:02:49,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:02:49,582 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;@8203c9c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:02:49,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:02:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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 16:02:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:02:49,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:49,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:02:49,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:02:49,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:49,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1258159597, now seen corresponding path program 1 times [2022-12-13 16:02:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:49,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285442306] [2022-12-13 16:02:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:49,611 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 16:02:49,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:49,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:49,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:02:49,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:02:49,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:02:49,748 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 16:02:49,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:02:49,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:02:49,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285442306] [2022-12-13 16:02:49,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285442306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:02:49,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:02:49,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:02:49,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542511565] [2022-12-13 16:02:49,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:02:49,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:02:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:02:49,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:02:49,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:02:49,788 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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 3 states, 3 states have (on average 3.3333333333333335) 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 16:02:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:02:49,814 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-12-13 16:02:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:02:49,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 16:02:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:02:49,823 INFO L225 Difference]: With dead ends: 41 [2022-12-13 16:02:49,823 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 16:02:49,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:02:49,829 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:02:49,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:02:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 16:02:49,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 16:02:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 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 16:02:49,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-12-13 16:02:49,860 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2022-12-13 16:02:49,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:02:49,861 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-12-13 16:02:49,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 16:02:49,861 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-12-13 16:02:49,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 16:02:49,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:02:49,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:02:49,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:50,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:50,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:02:50,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:02:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1822236216, now seen corresponding path program 1 times [2022-12-13 16:02:50,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:02:50,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175166962] [2022-12-13 16:02:50,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:02:50,068 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 16:02:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:02:50,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:50,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:02:50,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:02:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:02:50,195 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:02:50,195 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:02:50,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:02:50,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:02:50,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:50,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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 16:02:50,407 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:02:50,417 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:02:50,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:02:50 BoogieIcfgContainer [2022-12-13 16:02:50,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:02:50,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:02:50,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:02:50,480 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:02:50,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:02:49" (3/4) ... [2022-12-13 16:02:50,483 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 16:02:50,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:02:50,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:02:50,517 INFO L158 Benchmark]: Toolchain (without parser) took 2145.48ms. Allocated memory is still 62.9MB. Free memory was 42.7MB in the beginning and 25.4MB in the end (delta: 17.3MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-12-13 16:02:50,517 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 27.6MB in the beginning and 27.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:02:50,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.52ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 26.2MB in the end (delta: 16.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-12-13 16:02:50,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.93ms. Allocated memory is still 62.9MB. Free memory was 26.2MB in the beginning and 23.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:02:50,518 INFO L158 Benchmark]: Boogie Preprocessor took 20.97ms. Allocated memory is still 62.9MB. Free memory was 23.0MB in the beginning and 21.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:02:50,519 INFO L158 Benchmark]: RCFGBuilder took 325.93ms. Allocated memory is still 62.9MB. Free memory was 20.9MB in the beginning and 24.1MB in the end (delta: -3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:02:50,519 INFO L158 Benchmark]: TraceAbstraction took 979.91ms. Allocated memory is still 62.9MB. Free memory was 23.4MB in the beginning and 27.9MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:02:50,519 INFO L158 Benchmark]: Witness Printer took 37.53ms. Allocated memory is still 62.9MB. Free memory was 27.9MB in the beginning and 25.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:02:50,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 27.6MB in the beginning and 27.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.52ms. Allocated memory is still 62.9MB. Free memory was 42.5MB in the beginning and 26.2MB in the end (delta: 16.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.93ms. Allocated memory is still 62.9MB. Free memory was 26.2MB in the beginning and 23.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.97ms. Allocated memory is still 62.9MB. Free memory was 23.0MB in the beginning and 21.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.93ms. Allocated memory is still 62.9MB. Free memory was 20.9MB in the beginning and 24.1MB in the end (delta: -3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 979.91ms. Allocated memory is still 62.9MB. Free memory was 23.4MB in the beginning and 27.9MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.53ms. Allocated memory is still 62.9MB. Free memory was 27.9MB in the beginning and 25.4MB in the end (delta: 2.5MB). 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)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_multiply_13_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=2, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE GLOBAL_CONST_FIVE==5 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE data < 0 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data * 2 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1560]: 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, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 25 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 16:02:50,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e31400d0-2de3-4533-8840-b88ae8de2310/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)