./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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_a8d374fd-8d8e-4214-bce9-b809211d6039/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 641b63822d471d5531f90d48cfbdbaae35d751fa5a120de5a1c27d8ea3ca4d41 --- 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 14:53:22,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:53:22,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:53:22,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:53:22,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:53:22,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:53:22,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:53:22,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:53:22,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:53:22,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:53:22,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:53:22,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:53:22,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:53:22,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:53:22,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:53:22,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:53:22,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:53:22,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:53:22,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:53:22,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:53:22,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:53:22,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:53:22,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:53:22,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:53:22,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:53:22,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:53:22,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:53:22,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:53:22,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:53:22,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:53:22,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:53:22,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:53:22,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:53:22,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:53:22,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:53:22,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:53:22,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:53:22,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:53:22,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:53:22,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:53:22,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:53:22,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 14:53:22,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:53:22,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:53:22,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:53:22,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:53:22,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:53:22,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:53:22,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:53:22,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:53:22,829 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:53:22,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:53:22,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:53:22,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:53:22,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:53:22,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:53:22,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:53:22,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:53:22,831 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:53:22,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:53:22,831 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:53:22,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:53:22,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:53:22,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:22,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:53:22,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:53:22,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:53:22,833 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:53:22,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:53:22,833 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:53:22,833 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_a8d374fd-8d8e-4214-bce9-b809211d6039/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 641b63822d471d5531f90d48cfbdbaae35d751fa5a120de5a1c27d8ea3ca4d41 [2022-12-13 14:53:23,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:53:23,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:53:23,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:53:23,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:53:23,034 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:53:23,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i [2022-12-13 14:53:25,594 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:53:25,833 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:53:25,833 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i [2022-12-13 14:53:25,850 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data/781303885/e7a63273dc9643429d5c7c8aa95977d0/FLAGfb65092fa [2022-12-13 14:53:25,863 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data/781303885/e7a63273dc9643429d5c7c8aa95977d0 [2022-12-13 14:53:25,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:53:25,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:53:25,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:25,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:53:25,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:53:25,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:25" (1/1) ... [2022-12-13 14:53:25,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368f33a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:25, skipping insertion in model container [2022-12-13 14:53:25,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:25" (1/1) ... [2022-12-13 14:53:25,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:53:25,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:53:26,159 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:53:26,421 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:53:26,426 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:26,428 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:26,430 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:26,431 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:26,454 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:53:26,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:26,465 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:53:26,483 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:53:26,529 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:53:26,531 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:26,532 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:26,534 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:26,534 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:26,552 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:53:26,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:26,634 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:53:26,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26 WrapperNode [2022-12-13 14:53:26,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:26,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:26,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:53:26,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:53:26,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,686 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 14:53:26,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:26,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:53:26,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:53:26,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:53:26,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:53:26,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:53:26,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:53:26,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:53:26,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (1/1) ... [2022-12-13 14:53:26,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:26,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:53:26,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:53:26,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:53:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 14:53:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 14:53:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:53:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:53:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:53:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 14:53:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:53:26,888 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:53:26,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:53:27,013 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:53:27,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:53:27,026 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:53:27,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:27 BoogieIcfgContainer [2022-12-13 14:53:27,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:53:27,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:53:27,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:53:27,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:53:27,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:53:25" (1/3) ... [2022-12-13 14:53:27,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48acf3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:27, skipping insertion in model container [2022-12-13 14:53:27,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:26" (2/3) ... [2022-12-13 14:53:27,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48acf3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:27, skipping insertion in model container [2022-12-13 14:53:27,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:27" (3/3) ... [2022-12-13 14:53:27,034 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_05_bad.i [2022-12-13 14:53:27,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:53:27,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:53:27,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:53:27,087 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;@40cde6dc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:53:27,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:53:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 14:53:27,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 14:53:27,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:27,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:27,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:53:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-13 14:53:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:53:27,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905324323] [2022-12-13 14:53:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:53:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:53:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:53:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:53:27,294 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 14:53:27,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:53:27,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905324323] [2022-12-13 14:53:27,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905324323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:53:27,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:53:27,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:53:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943673242] [2022-12-13 14:53:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:53:27,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:53:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:53:27,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:53:27,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:53:27,323 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:53:27,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:53:27,344 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-12-13 14:53:27,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:53:27,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 14:53:27,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:53:27,351 INFO L225 Difference]: With dead ends: 39 [2022-12-13 14:53:27,351 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 14:53:27,353 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 14:53:27,357 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 23 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 14:53:27,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 23 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:53:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 14:53:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 14:53:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 14:53:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-12-13 14:53:27,384 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-12-13 14:53:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:53:27,384 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-13 14:53:27,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:53:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-13 14:53:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:53:27,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:27,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:27,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:53:27,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:53:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:27,386 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-13 14:53:27,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:53:27,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491615349] [2022-12-13 14:53:27,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:27,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:53:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:27,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:53:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:27,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:53:27,467 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:53:27,468 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 14:53:27,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 14:53:27,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:53:27,472 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:53:27,475 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:53:27,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:53:27 BoogieIcfgContainer [2022-12-13 14:53:27,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:53:27,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:53:27,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:53:27,492 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:53:27,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:27" (3/4) ... [2022-12-13 14:53:27,494 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:53:27,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:53:27,495 INFO L158 Benchmark]: Toolchain (without parser) took 1627.93ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 73.7MB in the beginning and 71.5MB in the end (delta: 2.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2022-12-13 14:53:27,495 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:27,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.94ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 73.3MB in the beginning and 75.2MB in the end (delta: -1.9MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-12-13 14:53:27,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.52ms. Allocated memory is still 140.5MB. Free memory was 75.2MB in the beginning and 72.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:53:27,496 INFO L158 Benchmark]: Boogie Preprocessor took 25.05ms. Allocated memory is still 140.5MB. Free memory was 72.3MB in the beginning and 70.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:27,496 INFO L158 Benchmark]: RCFGBuilder took 314.77ms. Allocated memory is still 140.5MB. Free memory was 70.8MB in the beginning and 107.1MB in the end (delta: -36.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-12-13 14:53:27,497 INFO L158 Benchmark]: TraceAbstraction took 462.11ms. Allocated memory is still 140.5MB. Free memory was 106.3MB in the beginning and 71.5MB in the end (delta: 34.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 14:53:27,497 INFO L158 Benchmark]: Witness Printer took 2.66ms. Allocated memory is still 140.5MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:27,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 766.94ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 73.3MB in the beginning and 75.2MB in the end (delta: -1.9MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.52ms. Allocated memory is still 140.5MB. Free memory was 75.2MB in the beginning and 72.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.05ms. Allocated memory is still 140.5MB. Free memory was 72.3MB in the beginning and 70.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.77ms. Allocated memory is still 140.5MB. Free memory was 70.8MB in the beginning and 107.1MB in the end (delta: -36.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 462.11ms. Allocated memory is still 140.5MB. Free memory was 106.3MB in the beginning and 71.5MB in the end (delta: 34.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 2.66ms. Allocated memory is still 140.5MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1556, overapproximation of bitwiseAnd at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 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, staticFalse=0, staticTrue=1] [L1570] 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}, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=3221225474, argc=3221225474, argv={3221225473:3221225475}, argv={3221225473:3221225475}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_postdec_05_bad() [L1552] int data; [L1553] 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, staticFalse=0, staticTrue=1] [L1554] COND TRUE \read(staticTrue) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] 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()=65536, rand()=3, rand()=2147483647, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648, staticFalse=0, staticTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(staticTrue) [L1561] data-- VAL [data=-2147483648, 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, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1561]: 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, 23 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, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 23 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, 23 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=23occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 14:53:27,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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_a8d374fd-8d8e-4214-bce9-b809211d6039/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 641b63822d471d5531f90d48cfbdbaae35d751fa5a120de5a1c27d8ea3ca4d41 --- 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 14:53:29,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:53:29,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:53:29,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:53:29,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:53:29,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:53:29,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:53:29,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:53:29,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:53:29,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:53:29,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:53:29,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:53:29,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:53:29,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:53:29,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:53:29,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:53:29,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:53:29,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:53:29,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:53:29,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:53:29,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:53:29,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:53:29,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:53:29,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:53:29,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:53:29,073 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:53:29,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:53:29,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:53:29,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:53:29,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:53:29,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:53:29,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:53:29,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:53:29,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:53:29,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:53:29,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:53:29,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:53:29,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:53:29,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:53:29,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:53:29,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:53:29,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 14:53:29,107 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:53:29,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:53:29,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:53:29,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:53:29,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:53:29,108 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:53:29,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:53:29,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:53:29,109 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:53:29,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:53:29,110 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:53:29,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:53:29,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:53:29,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:53:29,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:53:29,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:53:29,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:29,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:53:29,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:53:29,113 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:53:29,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:53:29,113 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:53:29,113 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:53:29,113 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_a8d374fd-8d8e-4214-bce9-b809211d6039/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 641b63822d471d5531f90d48cfbdbaae35d751fa5a120de5a1c27d8ea3ca4d41 [2022-12-13 14:53:29,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:53:29,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:53:29,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:53:29,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:53:29,364 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:53:29,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i [2022-12-13 14:53:31,976 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:53:32,220 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:53:32,221 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_05_bad.i [2022-12-13 14:53:32,239 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data/2d073210f/59c73b2da18449dc8172c08059c9d44b/FLAGd4fd4d1ba [2022-12-13 14:53:32,251 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/data/2d073210f/59c73b2da18449dc8172c08059c9d44b [2022-12-13 14:53:32,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:53:32,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:53:32,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:32,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:53:32,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:53:32,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:32" (1/1) ... [2022-12-13 14:53:32,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d42f17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:32, skipping insertion in model container [2022-12-13 14:53:32,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:53:32" (1/1) ... [2022-12-13 14:53:32,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:53:32,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:53:32,641 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:53:33,091 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:53:33,095 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:33,096 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:33,098 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:33,098 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:33,116 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:53:33,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:33,126 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:53:33,138 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:53:33,166 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:53:33,167 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:33,168 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:53:33,169 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:33,169 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:53:33,173 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:53:33,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:53:33,258 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:53:33,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33 WrapperNode [2022-12-13 14:53:33,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:53:33,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:33,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:53:33,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:53:33,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,308 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 14:53:33,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:53:33,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:53:33,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:53:33,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:53:33,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,326 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:53:33,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:53:33,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:53:33,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:53:33,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (1/1) ... [2022-12-13 14:53:33,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:53:33,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:53:33,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:53:33,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:53:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 14:53:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 14:53:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 14:53:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:53:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:53:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:53:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 14:53:33,501 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:53:33,503 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:53:33,611 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:53:33,615 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:53:33,615 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:53:33,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:33 BoogieIcfgContainer [2022-12-13 14:53:33,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:53:33,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:53:33,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:53:33,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:53:33,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:53:32" (1/3) ... [2022-12-13 14:53:33,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4b0816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:33, skipping insertion in model container [2022-12-13 14:53:33,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:53:33" (2/3) ... [2022-12-13 14:53:33,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4b0816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:53:33, skipping insertion in model container [2022-12-13 14:53:33,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:33" (3/3) ... [2022-12-13 14:53:33,622 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_05_bad.i [2022-12-13 14:53:33,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:53:33,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:53:33,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:53:33,674 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;@5a86f61e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:53:33,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:53:33,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 14:53:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 14:53:33,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:33,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:33,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:53:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-13 14:53:33,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:53:33,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324132550] [2022-12-13 14:53:33,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:33,697 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 14:53:33,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:53:33,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:33,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:53:33,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 14:53:33,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:53:33,837 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 14:53:33,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:53:33,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:53:33,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324132550] [2022-12-13 14:53:33,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324132550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:53:33,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:53:33,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:53:33,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679982865] [2022-12-13 14:53:33,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:53:33,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:53:33,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:53:33,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:53:33,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:53:33,867 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:53:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:53:33,890 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-12-13 14:53:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:53:33,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 14:53:33,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:53:33,897 INFO L225 Difference]: With dead ends: 38 [2022-12-13 14:53:33,897 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 14:53:33,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 14:53:33,902 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 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 14:53:33,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:53:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 14:53:33,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 14:53:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:53:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-13 14:53:33,928 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-13 14:53:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:53:33,928 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-13 14:53:33,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:53:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-13 14:53:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:53:33,929 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:53:33,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:53:33,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:34,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:34,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:53:34,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:53:34,136 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-13 14:53:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:53:34,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597244173] [2022-12-13 14:53:34,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:53:34,140 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 14:53:34,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:53:34,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:34,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:34,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:53:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:53:34,392 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 14:53:34,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:53:34,394 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 14:53:34,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 14:53:34,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:34,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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 14:53:34,606 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:53:34,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:53:34,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:53:34 BoogieIcfgContainer [2022-12-13 14:53:34,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:53:34,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:53:34,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:53:34,638 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:53:34,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:53:33" (3/4) ... [2022-12-13 14:53:34,639 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 14:53:34,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:53:34,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:53:34,671 INFO L158 Benchmark]: Toolchain (without parser) took 2417.19ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 38.6MB in the end (delta: 22.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,672 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:53:34,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1004.07ms. Allocated memory is still 86.0MB. Free memory was 60.9MB in the beginning and 39.8MB in the end (delta: 21.1MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.78ms. Allocated memory is still 86.0MB. Free memory was 39.4MB in the beginning and 36.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,673 INFO L158 Benchmark]: Boogie Preprocessor took 21.41ms. Allocated memory is still 86.0MB. Free memory was 36.3MB in the beginning and 34.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,673 INFO L158 Benchmark]: RCFGBuilder took 286.05ms. Allocated memory is still 86.0MB. Free memory was 34.3MB in the beginning and 47.6MB in the end (delta: -13.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,674 INFO L158 Benchmark]: TraceAbstraction took 1019.04ms. Allocated memory is still 86.0MB. Free memory was 46.7MB in the beginning and 41.3MB in the end (delta: 5.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,674 INFO L158 Benchmark]: Witness Printer took 33.22ms. Allocated memory is still 86.0MB. Free memory was 40.8MB in the beginning and 38.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:53:34,676 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 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1004.07ms. Allocated memory is still 86.0MB. Free memory was 60.9MB in the beginning and 39.8MB in the end (delta: 21.1MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.78ms. Allocated memory is still 86.0MB. Free memory was 39.4MB in the beginning and 36.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.41ms. Allocated memory is still 86.0MB. Free memory was 36.3MB in the beginning and 34.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.05ms. Allocated memory is still 86.0MB. Free memory was 34.3MB in the beginning and 47.6MB in the end (delta: -13.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1019.04ms. Allocated memory is still 86.0MB. Free memory was 46.7MB in the beginning and 41.3MB in the end (delta: 5.4MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 33.22ms. Allocated memory is still 86.0MB. Free memory was 40.8MB in the beginning and 38.6MB in the end (delta: 2.2MB). 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: 1561]: 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); [L1548] static int staticTrue = 1; [L1549] static int staticFalse = 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, staticFalse=0, staticTrue=1] [L1570] 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}, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] 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, staticFalse=0, staticTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_postdec_05_bad() [L1552] int data; [L1553] 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, staticFalse=0, staticTrue=1] [L1554] COND TRUE \read(staticTrue) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] 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()=2, rand()=1, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648, staticFalse=0, staticTrue=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(staticTrue) [L1561] data-- VAL [data=-2147483648, 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, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1561]: 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, 23 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, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 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, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 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 14:53:34,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d374fd-8d8e-4214-bce9-b809211d6039/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)