./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d42bc4029b22d5fbac4ec556f66bb794bd4efb484b2f7343472d3031f33fa34 --- 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 [2022-12-14 08:48:52,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:48:52,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:48:52,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:48:52,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:48:52,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:48:52,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:48:52,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:48:52,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:48:52,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:48:52,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:48:52,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:48:52,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:48:52,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:48:52,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:48:52,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:48:52,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:48:52,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:48:52,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:48:52,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:48:52,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:48:52,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:48:52,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:48:52,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:48:52,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:48:52,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:48:52,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:48:52,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:48:52,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:48:52,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:48:52,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:48:52,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:48:52,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:48:52,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:48:52,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:48:52,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:48:52,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:48:52,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:48:52,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:48:52,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:48:52,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:48:52,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 08:48:52,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:48:52,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:48:52,868 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:48:52,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:48:52,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:48:52,869 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:48:52,870 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:48:52,870 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:48:52,870 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:48:52,870 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:48:52,870 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:48:52,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:48:52,871 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:48:52,871 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:48:52,871 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:48:52,872 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:48:52,872 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:48:52,872 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:48:52,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:48:52,873 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:48:52,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:48:52,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:48:52,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:48:52,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:48:52,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:48:52,874 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:48:52,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:48:52,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:48:52,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:48:52,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:48:52,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:48:52,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:48:52,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:48:52,875 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:48:52,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:48:52,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:48:52,876 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:48:52,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:48:52,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:48:52,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:48:52,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d42bc4029b22d5fbac4ec556f66bb794bd4efb484b2f7343472d3031f33fa34 [2022-12-14 08:48:53,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:48:53,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:48:53,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:48:53,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:48:53,061 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:48:53,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i [2022-12-14 08:48:55,688 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:48:55,897 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:48:55,897 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i [2022-12-14 08:48:55,910 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data/4bb823578/2cac9ca6095e4b84b260bb2d170a1fee/FLAG61016bcc6 [2022-12-14 08:48:55,920 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data/4bb823578/2cac9ca6095e4b84b260bb2d170a1fee [2022-12-14 08:48:55,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:48:55,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:48:55,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:48:55,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:48:55,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:48:55,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:48:55" (1/1) ... [2022-12-14 08:48:55,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8994a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:55, skipping insertion in model container [2022-12-14 08:48:55,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:48:55" (1/1) ... [2022-12-14 08:48:55,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:48:55,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:48:56,259 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:48:56,586 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:48:56,591 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:48:56,592 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:48:56,594 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:48:56,594 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:48:56,613 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:48:56,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:48:56,621 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:48:56,634 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:48:56,663 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:48:56,665 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:48:56,665 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:48:56,667 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:48:56,668 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:48:56,672 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:48:56,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:48:56,752 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:48:56,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56 WrapperNode [2022-12-14 08:48:56,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:48:56,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:48:56,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:48:56,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:48:56,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,814 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-14 08:48:56,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:48:56,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:48:56,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:48:56,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:48:56,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,830 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:48:56,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:48:56,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:48:56,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:48:56,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (1/1) ... [2022-12-14 08:48:56,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:48:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:48:56,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:48:56,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:48:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 08:48:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 08:48:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-14 08:48:56,893 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-14 08:48:56,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:48:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:48:56,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:48:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 08:48:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:48:56,997 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:48:56,999 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:48:57,108 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:48:57,181 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:48:57,181 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:48:57,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:48:57 BoogieIcfgContainer [2022-12-14 08:48:57,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:48:57,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:48:57,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:48:57,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:48:57,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:48:55" (1/3) ... [2022-12-14 08:48:57,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f228f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:48:57, skipping insertion in model container [2022-12-14 08:48:57,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:48:56" (2/3) ... [2022-12-14 08:48:57,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f228f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:48:57, skipping insertion in model container [2022-12-14 08:48:57,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:48:57" (3/3) ... [2022-12-14 08:48:57,191 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_11_bad.i [2022-12-14 08:48:57,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:48:57,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:48:57,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:48:57,246 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=FINITE_AUTOMATA, 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;@724494c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:48:57,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 08:48:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 08:48:57,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 08:48:57,255 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:48:57,255 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:48:57,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:48:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:48:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash 150707878, now seen corresponding path program 1 times [2022-12-14 08:48:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:48:57,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216669098] [2022-12-14 08:48:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:48:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:48:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:48:57,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:48:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:48:57,452 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:48:57,453 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:48:57,454 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 08:48:57,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 08:48:57,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:48:57,460 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 08:48:57,463 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:48:57,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:48:57 BoogieIcfgContainer [2022-12-14 08:48:57,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:48:57,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:48:57,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:48:57,482 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:48:57,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:48:57" (3/4) ... [2022-12-14 08:48:57,485 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:48:57,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:48:57,486 INFO L158 Benchmark]: Toolchain (without parser) took 1562.70ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 69.0MB in the end (delta: 38.4MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-12-14 08:48:57,486 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:48:57,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.44ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 45.0MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-12-14 08:48:57,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.57ms. Allocated memory is still 146.8MB. Free memory was 45.0MB in the beginning and 114.4MB in the end (delta: -69.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-12-14 08:48:57,487 INFO L158 Benchmark]: Boogie Preprocessor took 17.52ms. Allocated memory is still 146.8MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:48:57,488 INFO L158 Benchmark]: RCFGBuilder took 350.60ms. Allocated memory is still 146.8MB. Free memory was 112.3MB in the beginning and 92.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 08:48:57,488 INFO L158 Benchmark]: TraceAbstraction took 296.02ms. Allocated memory is still 146.8MB. Free memory was 91.3MB in the beginning and 69.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 08:48:57,488 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 146.8MB. Free memory was 69.5MB in the beginning and 69.0MB in the end (delta: 568.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:48:57,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.44ms. Allocated memory is still 146.8MB. Free memory was 107.4MB in the beginning and 45.0MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.57ms. Allocated memory is still 146.8MB. Free memory was 45.0MB in the beginning and 114.4MB in the end (delta: -69.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.52ms. Allocated memory is still 146.8MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.60ms. Allocated memory is still 146.8MB. Free memory was 112.3MB in the beginning and 92.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 296.02ms. Allocated memory is still 146.8MB. Free memory was 91.3MB in the beginning and 69.5MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 146.8MB. Free memory was 69.5MB in the beginning and 69.0MB in the end (delta: 568.0kB). 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1567] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1567] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483652] [L1556] COND TRUE globalReturnsTrue() [L1559] data - 1 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483652] - UnprovableResult [Line: 1559]: 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-12-14 08:48:57,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d42bc4029b22d5fbac4ec556f66bb794bd4efb484b2f7343472d3031f33fa34 --- 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 [2022-12-14 08:48:59,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:48:59,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:48:59,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:48:59,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:48:59,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:48:59,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:48:59,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:48:59,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:48:59,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:48:59,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:48:59,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:48:59,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:48:59,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:48:59,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:48:59,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:48:59,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:48:59,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:48:59,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:48:59,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:48:59,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:48:59,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:48:59,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:48:59,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:48:59,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:48:59,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:48:59,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:48:59,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:48:59,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:48:59,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:48:59,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:48:59,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:48:59,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:48:59,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:48:59,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:48:59,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:48:59,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:48:59,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:48:59,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:48:59,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:48:59,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:48:59,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 08:48:59,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:48:59,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:48:59,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:48:59,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:48:59,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:48:59,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:48:59,134 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:48:59,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:48:59,134 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:48:59,135 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:48:59,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:48:59,135 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:48:59,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:48:59,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:48:59,136 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:48:59,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:48:59,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:48:59,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:48:59,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:48:59,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:48:59,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:48:59,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:48:59,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:48:59,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:48:59,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:48:59,138 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:48:59,139 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:48:59,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:48:59,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:48:59,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:48:59,139 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d42bc4029b22d5fbac4ec556f66bb794bd4efb484b2f7343472d3031f33fa34 [2022-12-14 08:48:59,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:48:59,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:48:59,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:48:59,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:48:59,361 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:48:59,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i [2022-12-14 08:49:01,959 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:49:02,189 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:49:02,190 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_11_bad.i [2022-12-14 08:49:02,203 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data/34cb78298/e4b58516fbc049888dc205b4c82cd798/FLAG166c6bc79 [2022-12-14 08:49:02,517 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/data/34cb78298/e4b58516fbc049888dc205b4c82cd798 [2022-12-14 08:49:02,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:49:02,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:49:02,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:49:02,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:49:02,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:49:02,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:49:02" (1/1) ... [2022-12-14 08:49:02,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373f14a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:02, skipping insertion in model container [2022-12-14 08:49:02,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:49:02" (1/1) ... [2022-12-14 08:49:02,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:49:02,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:49:02,814 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:49:03,149 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:49:03,153 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:49:03,154 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:49:03,155 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:49:03,155 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:49:03,173 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:49:03,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:49:03,184 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:49:03,196 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:49:03,235 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:49:03,236 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:49:03,237 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:49:03,238 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:49:03,239 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:49:03,242 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:49:03,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:49:03,328 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:49:03,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03 WrapperNode [2022-12-14 08:49:03,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:49:03,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:49:03,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:49:03,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:49:03,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,366 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-14 08:49:03,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:49:03,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:49:03,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:49:03,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:49:03,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,383 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:49:03,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:49:03,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:49:03,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:49:03,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (1/1) ... [2022-12-14 08:49:03,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:49:03,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:49:03,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:49:03,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:49:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 08:49:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 08:49:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-14 08:49:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-14 08:49:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:49:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:49:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:49:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:49:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 08:49:03,562 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:49:03,563 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:49:03,670 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:49:03,675 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:49:03,675 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:49:03,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:49:03 BoogieIcfgContainer [2022-12-14 08:49:03,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:49:03,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:49:03,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:49:03,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:49:03,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:49:02" (1/3) ... [2022-12-14 08:49:03,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f4ffaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:49:03, skipping insertion in model container [2022-12-14 08:49:03,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:03" (2/3) ... [2022-12-14 08:49:03,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f4ffaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:49:03, skipping insertion in model container [2022-12-14 08:49:03,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:49:03" (3/3) ... [2022-12-14 08:49:03,684 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_11_bad.i [2022-12-14 08:49:03,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:49:03,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:49:03,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:49:03,738 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=FINITE_AUTOMATA, 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;@20bfcda1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:49:03,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 08:49:03,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 08:49:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 08:49:03,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:49:03,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:49:03,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:49:03,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:49:03,754 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2022-12-14 08:49:03,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:49:03,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426142741] [2022-12-14 08:49:03,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:03,767 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 [2022-12-14 08:49:03,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:49:03,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:49:03,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:49:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:49:03,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:49:03,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:49:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:49:03,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:49:03,913 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:49:03,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426142741] [2022-12-14 08:49:03,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426142741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:49:03,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:49:03,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:49:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398662962] [2022-12-14 08:49:03,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:49:03,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:49:03,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:49:03,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:49:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:49:03,946 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 08:49:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:49:03,970 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-12-14 08:49:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:49:03,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-14 08:49:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:49:03,977 INFO L225 Difference]: With dead ends: 47 [2022-12-14 08:49:03,977 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 08:49:03,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:49:03,981 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:49:03,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:49:03,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 08:49:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 08:49:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 08:49:04,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 08:49:04,005 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2022-12-14 08:49:04,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:49:04,006 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 08:49:04,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 08:49:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 08:49:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 08:49:04,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:49:04,007 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:49:04,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:49:04,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:49:04,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:49:04,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:49:04,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2022-12-14 08:49:04,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:49:04,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016816077] [2022-12-14 08:49:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:04,215 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 [2022-12-14 08:49:04,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:49:04,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:49:04,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:49:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:49:04,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:49:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:49:04,404 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 08:49:04,409 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:49:04,410 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 08:49:04,412 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 08:49:04,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:49:04,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:49:04,620 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 08:49:04,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:49:04,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:49:04 BoogieIcfgContainer [2022-12-14 08:49:04,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:49:04,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:49:04,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:49:04,682 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:49:04,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:49:03" (3/4) ... [2022-12-14 08:49:04,684 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 08:49:04,715 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:49:04,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:49:04,715 INFO L158 Benchmark]: Toolchain (without parser) took 2195.40ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 39.3MB in the end (delta: -3.8MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,716 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.9MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:49:04,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.57ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 40.7MB in the end (delta: -5.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,716 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.52ms. Allocated memory is still 73.4MB. Free memory was 40.7MB in the beginning and 37.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,717 INFO L158 Benchmark]: Boogie Preprocessor took 20.06ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 35.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,717 INFO L158 Benchmark]: RCFGBuilder took 289.57ms. Allocated memory is still 73.4MB. Free memory was 35.5MB in the beginning and 39.5MB in the end (delta: -3.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,717 INFO L158 Benchmark]: TraceAbstraction took 1002.98ms. Allocated memory is still 73.4MB. Free memory was 38.8MB in the beginning and 41.8MB in the end (delta: -3.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,718 INFO L158 Benchmark]: Witness Printer took 32.92ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 39.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:49:04,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 46.1MB. Free memory was 24.9MB in the beginning and 24.9MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.57ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 40.7MB in the end (delta: -5.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.52ms. Allocated memory is still 73.4MB. Free memory was 40.7MB in the beginning and 37.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.06ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 35.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.57ms. Allocated memory is still 73.4MB. Free memory was 35.5MB in the beginning and 39.5MB in the end (delta: -3.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1002.98ms. Allocated memory is still 73.4MB. Free memory was 38.8MB in the beginning and 41.8MB in the end (delta: -3.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 32.92ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 39.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=0, rand()=1, rand()=65536, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [L1559] data - 1 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: 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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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! [2022-12-14 08:49:04,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccafb07-f1e9-4960-aa6f-87a57d0f1fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)