./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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_928207a0-1e27-4c61-810f-dc2b70707d1a/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 d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d --- 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 11:23:44,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:23:44,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:23:44,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:23:44,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:23:44,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:23:44,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:23:44,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:23:44,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:23:44,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:23:44,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:23:44,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:23:44,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:23:44,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:23:44,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:23:44,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:23:44,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:23:44,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:23:44,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:23:44,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:23:44,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:23:44,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:23:44,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:23:44,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:23:44,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:23:44,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:23:44,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:23:44,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:23:44,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:23:44,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:23:44,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:23:44,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:23:44,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:23:44,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:23:44,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:23:44,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:23:44,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:23:44,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:23:44,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:23:44,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:23:44,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:23:44,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 11:23:44,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:23:44,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:23:44,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:23:44,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:23:44,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:23:44,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:23:44,948 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:23:44,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:23:44,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:23:44,949 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:23:44,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:23:44,950 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:23:44,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:44,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:23:44,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:23:44,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:23:44,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:23:44,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:23:44,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:23:44,952 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_928207a0-1e27-4c61-810f-dc2b70707d1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d [2022-12-14 11:23:45,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:23:45,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:23:45,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:23:45,144 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:23:45,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:23:45,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-14 11:23:47,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:23:48,036 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:23:48,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-14 11:23:48,056 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data/e12e4d23d/3b88bd42941c4f869d926bdbb04a55c9/FLAG90134efc5 [2022-12-14 11:23:48,067 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data/e12e4d23d/3b88bd42941c4f869d926bdbb04a55c9 [2022-12-14 11:23:48,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:23:48,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:23:48,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:48,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:23:48,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:23:48,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6ccf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48, skipping insertion in model container [2022-12-14 11:23:48,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:23:48,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:23:48,340 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:23:48,675 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:23:48,680 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:48,682 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:48,684 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:48,685 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:48,714 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:23:48,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:48,724 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:23:48,742 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:23:48,779 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:23:48,781 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:48,782 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:48,784 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:48,785 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:48,790 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:23:48,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:48,911 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:23:48,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48 WrapperNode [2022-12-14 11:23:48,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:48,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:48,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:23:48,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:23:48,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,949 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 11:23:48,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:48,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:23:48,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:23:48,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:23:48,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:23:48,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:23:48,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:23:48,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:23:48,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (1/1) ... [2022-12-14 11:23:48,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:48,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:48,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:23:48,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:23:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 11:23:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 11:23:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:23:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:23:49,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:23:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 11:23:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:23:49,129 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:23:49,130 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:23:49,236 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:23:49,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:23:49,315 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 11:23:49,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:49 BoogieIcfgContainer [2022-12-14 11:23:49,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:23:49,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:23:49,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:23:49,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:23:49,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:23:48" (1/3) ... [2022-12-14 11:23:49,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6e0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:49, skipping insertion in model container [2022-12-14 11:23:49,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:48" (2/3) ... [2022-12-14 11:23:49,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6e0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:49, skipping insertion in model container [2022-12-14 11:23:49,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:49" (3/3) ... [2022-12-14 11:23:49,325 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-14 11:23:49,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:23:49,341 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:23:49,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:23:49,386 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;@21ab8da9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:23:49,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:23:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:23:49,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:23:49,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:49,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:23:49,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:23:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:49,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1963300780, now seen corresponding path program 1 times [2022-12-14 11:23:49,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:23:49,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337355313] [2022-12-14 11:23:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:49,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:23:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:23:49,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:23:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:23:49,637 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:23:49,639 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:23:49,640 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 11:23:49,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 11:23:49,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:23:49,648 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 11:23:49,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:23:49,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:23:49 BoogieIcfgContainer [2022-12-14 11:23:49,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:23:49,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:23:49,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:23:49,673 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:23:49,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:49" (3/4) ... [2022-12-14 11:23:49,677 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:23:49,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:23:49,678 INFO L158 Benchmark]: Toolchain (without parser) took 1607.96ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 106.5MB in the beginning and 140.5MB in the end (delta: -33.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-12-14 11:23:49,679 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:23:49,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.04ms. Allocated memory is still 144.7MB. Free memory was 106.1MB in the beginning and 97.9MB in the end (delta: 8.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-12-14 11:23:49,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.01ms. Allocated memory is still 144.7MB. Free memory was 97.2MB in the beginning and 94.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:49,681 INFO L158 Benchmark]: Boogie Preprocessor took 16.74ms. Allocated memory is still 144.7MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:49,681 INFO L158 Benchmark]: RCFGBuilder took 349.85ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 72.8MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:23:49,682 INFO L158 Benchmark]: TraceAbstraction took 353.05ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 72.0MB in the beginning and 141.4MB in the end (delta: -69.4MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-12-14 11:23:49,682 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 180.4MB. Free memory was 141.4MB in the beginning and 140.5MB in the end (delta: 987.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:23:49,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.04ms. Allocated memory is still 144.7MB. Free memory was 106.1MB in the beginning and 97.9MB in the end (delta: 8.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.01ms. Allocated memory is still 144.7MB. Free memory was 97.2MB in the beginning and 94.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.74ms. Allocated memory is still 144.7MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.85ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 72.8MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 353.05ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 72.0MB in the beginning and 141.4MB in the end (delta: -69.4MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 180.4MB. Free memory was 141.4MB in the beginning and 140.5MB in the end (delta: 987.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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); [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_03_bad() [L1550] int data; [L1551] data = 0 [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)) [L1559] --data 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 2 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=13occurred 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, 6 NumberOfCodeBlocks, 6 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 11:23:49,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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_928207a0-1e27-4c61-810f-dc2b70707d1a/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 d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d --- 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 11:23:51,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:23:51,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:23:51,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:23:51,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:23:51,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:23:51,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:23:51,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:23:51,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:23:51,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:23:51,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:23:51,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:23:51,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:23:51,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:23:51,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:23:51,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:23:51,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:23:51,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:23:51,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:23:51,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:23:51,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:23:51,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:23:51,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:23:51,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:23:51,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:23:51,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:23:51,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:23:51,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:23:51,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:23:51,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:23:51,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:23:51,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:23:51,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:23:51,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:23:51,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:23:51,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:23:51,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:23:51,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:23:51,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:23:51,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:23:51,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:23:51,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 11:23:51,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:23:51,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:23:51,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:23:51,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:23:51,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:23:51,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:23:51,401 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:23:51,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:23:51,401 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:23:51,401 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:23:51,401 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:23:51,401 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:23:51,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:23:51,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:23:51,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:23:51,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:23:51,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:23:51,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:23:51,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:23:51,403 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:23:51,403 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:23:51,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:23:51,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:51,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:23:51,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:23:51,405 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_928207a0-1e27-4c61-810f-dc2b70707d1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f3c7386aa3718504fcc3b2b50e65ba74ff6ff0cfd4bcf487340bf120485b1d [2022-12-14 11:23:51,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:23:51,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:23:51,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:23:51,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:23:51,664 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:23:51,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-14 11:23:54,248 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:23:54,482 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:23:54,483 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-14 11:23:54,496 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data/6f5d4315d/29b5e4c3361e405c8e4af7ca6a40e9ae/FLAGe9a2bec68 [2022-12-14 11:23:54,507 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/data/6f5d4315d/29b5e4c3361e405c8e4af7ca6a40e9ae [2022-12-14 11:23:54,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:23:54,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:23:54,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:54,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:23:54,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:23:54,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:54" (1/1) ... [2022-12-14 11:23:54,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34de96c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:54, skipping insertion in model container [2022-12-14 11:23:54,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:23:54" (1/1) ... [2022-12-14 11:23:54,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:23:54,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:23:54,799 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:23:55,067 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:23:55,071 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:55,072 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:55,073 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:55,074 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:55,090 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:23:55,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:55,100 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:23:55,113 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:23:55,147 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:23:55,148 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:55,155 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:23:55,157 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:55,157 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:23:55,161 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:23:55,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:23:55,241 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:23:55,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55 WrapperNode [2022-12-14 11:23:55,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:23:55,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:55,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:23:55,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:23:55,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,278 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 11:23:55,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:23:55,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:23:55,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:23:55,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:23:55,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:23:55,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:23:55,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:23:55,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:23:55,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (1/1) ... [2022-12-14 11:23:55,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:23:55,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:55,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:23:55,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:23:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 11:23:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 11:23:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 11:23:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:23:55,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:23:55,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:23:55,358 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 11:23:55,469 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:23:55,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:23:55,584 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:23:55,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:23:55,588 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 11:23:55,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:55 BoogieIcfgContainer [2022-12-14 11:23:55,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:23:55,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:23:55,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:23:55,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:23:55,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:23:54" (1/3) ... [2022-12-14 11:23:55,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1656a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:55, skipping insertion in model container [2022-12-14 11:23:55,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:23:55" (2/3) ... [2022-12-14 11:23:55,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1656a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:23:55, skipping insertion in model container [2022-12-14 11:23:55,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:55" (3/3) ... [2022-12-14 11:23:55,600 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_03_bad.i [2022-12-14 11:23:55,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:23:55,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:23:55,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:23:55,653 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;@1588be94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:23:55,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:23:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:23:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:23:55,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:55,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:55,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:23:55,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:55,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2051308032, now seen corresponding path program 1 times [2022-12-14 11:23:55,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:23:55,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131190900] [2022-12-14 11:23:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:55,676 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 11:23:55,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:23:55,677 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:55,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:55,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 11:23:55,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:55,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:55,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:23:55,811 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:23:55,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131190900] [2022-12-14 11:23:55,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131190900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:23:55,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:23:55,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:23:55,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934048955] [2022-12-14 11:23:55,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:23:55,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:23:55,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:23:55,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:23:55,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:23:55,838 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:23:55,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:55,852 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-12-14 11:23:55,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:23:55,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-12-14 11:23:55,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:55,858 INFO L225 Difference]: With dead ends: 36 [2022-12-14 11:23:55,858 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 11:23:55,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:23:55,862 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:55,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:23:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 11:23:55,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 11:23:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:23:55,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 11:23:55,892 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-12-14 11:23:55,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:55,893 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 11:23:55,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:23:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 11:23:55,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:23:55,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:55,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:55,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:56,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:56,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:23:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash -83247131, now seen corresponding path program 1 times [2022-12-14 11:23:56,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:23:56,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953379579] [2022-12-14 11:23:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:56,100 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 11:23:56,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:23:56,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:56,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:23:56,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:23:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:23:56,360 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 11:23:56,360 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:23:56,361 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 11:23:56,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 11:23:56,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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)] Forceful destruction successful, exit code 0 [2022-12-14 11:23:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/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 11:23:56,573 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 11:23:56,584 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:23:56,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:23:56 BoogieIcfgContainer [2022-12-14 11:23:56,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:23:56,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:23:56,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:23:56,650 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:23:56,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:23:55" (3/4) ... [2022-12-14 11:23:56,656 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 11:23:56,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:23:56,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:23:56,723 INFO L158 Benchmark]: Toolchain (without parser) took 2213.12ms. Allocated memory is still 69.2MB. Free memory was 43.7MB in the beginning and 28.1MB in the end (delta: 15.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,723 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:23:56,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.34ms. Allocated memory is still 69.2MB. Free memory was 43.5MB in the beginning and 42.8MB in the end (delta: 714.5kB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.06ms. Allocated memory is still 69.2MB. Free memory was 42.8MB in the beginning and 39.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,725 INFO L158 Benchmark]: Boogie Preprocessor took 19.99ms. Allocated memory is still 69.2MB. Free memory was 39.6MB in the beginning and 37.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,725 INFO L158 Benchmark]: RCFGBuilder took 294.66ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 41.3MB in the end (delta: -3.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,726 INFO L158 Benchmark]: TraceAbstraction took 1052.51ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 30.2MB in the end (delta: 10.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,726 INFO L158 Benchmark]: Witness Printer took 73.11ms. Allocated memory is still 69.2MB. Free memory was 30.2MB in the beginning and 28.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:56,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.34ms. Allocated memory is still 69.2MB. Free memory was 43.5MB in the beginning and 42.8MB in the end (delta: 714.5kB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.06ms. Allocated memory is still 69.2MB. Free memory was 42.8MB in the beginning and 39.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.99ms. Allocated memory is still 69.2MB. Free memory was 39.6MB in the beginning and 37.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.66ms. Allocated memory is still 69.2MB. Free memory was 37.6MB in the beginning and 41.3MB in the end (delta: -3.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1052.51ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 30.2MB in the end (delta: 10.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 73.11ms. Allocated memory is still 69.2MB. Free memory was 30.2MB in the beginning and 28.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 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] [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_03_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] [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()=1, rand()=2, rand()=0, rand()=0, 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)) [L1559] --data 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 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 11:23:56,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928207a0-1e27-4c61-810f-dc2b70707d1a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)