./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur --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 7816a20e2e7d55d784f2865970a3ca4a7f185dbfff6808b3fd0d54b3f019aa40 --- 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-38b53e6 [2022-11-25 23:56:37,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:56:37,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:56:37,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:56:37,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:56:37,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:56:37,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:56:37,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:56:37,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:56:37,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:56:37,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:56:37,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:56:37,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:56:37,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:56:37,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:56:37,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:56:37,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:56:37,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:56:37,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:56:37,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:56:37,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:56:37,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:56:37,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:56:37,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:56:37,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:56:37,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:56:37,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:56:37,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:56:37,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:56:37,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:56:37,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:56:37,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:56:37,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:56:37,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:56:37,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:56:37,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:56:37,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:56:37,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:56:37,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:56:37,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:56:37,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:56:37,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:56:37,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:56:37,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:56:37,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:56:37,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:56:37,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:56:37,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:56:37,127 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:56:37,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:56:37,127 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:56:37,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:56:37,129 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:56:37,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:56:37,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:56:37,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:56:37,129 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:56:37,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:56:37,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:56:37,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:56:37,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:56:37,131 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:56:37,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:56:37,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:56:37,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:56:37,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:56:37,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:56:37,132 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:56:37,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:56:37,132 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:56:37,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:56:37,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:56:37,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:56:37,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:56:37,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:56:37,133 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:56:37,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:56:37,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:56:37,134 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:56:37,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:56:37,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:56:37,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:56:37,135 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_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7816a20e2e7d55d784f2865970a3ca4a7f185dbfff6808b3fd0d54b3f019aa40 [2022-11-25 23:56:37,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:56:37,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:56:37,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:56:37,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:56:37,557 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:56:37,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i [2022-11-25 23:56:40,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:56:41,055 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:56:41,055 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i [2022-11-25 23:56:41,081 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data/2674892c9/f7883eb6bdc2461e9ce6583257052bfc/FLAG41ac8fe9d [2022-11-25 23:56:41,096 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data/2674892c9/f7883eb6bdc2461e9ce6583257052bfc [2022-11-25 23:56:41,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:56:41,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:56:41,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:56:41,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:56:41,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:56:41,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:56:41" (1/1) ... [2022-11-25 23:56:41,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec54b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:41, skipping insertion in model container [2022-11-25 23:56:41,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:56:41" (1/1) ... [2022-11-25 23:56:41,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:56:41,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:56:41,612 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:56:42,082 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:56:42,088 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:42,090 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:42,092 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:42,092 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:42,113 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:56:42,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:56:42,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:56:42,147 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:56:42,204 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:56:42,205 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:42,206 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:42,223 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:42,224 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:42,229 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:56:42,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:56:42,377 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:56:42,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42 WrapperNode [2022-11-25 23:56:42,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:56:42,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:56:42,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:56:42,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:56:42,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,488 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2022-11-25 23:56:42,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:56:42,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:56:42,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:56:42,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:56:42,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,527 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:56:42,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:56:42,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:56:42,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:56:42,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (1/1) ... [2022-11-25 23:56:42,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:56:42,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:42,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:56:42,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:56:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:56:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:56:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:56:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:56:42,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:56:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:56:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:56:42,759 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:56:42,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:56:42,984 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:56:43,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:56:43,085 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:56:43,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:43 BoogieIcfgContainer [2022-11-25 23:56:43,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:56:43,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:56:43,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:56:43,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:56:43,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:56:41" (1/3) ... [2022-11-25 23:56:43,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43198802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:56:43, skipping insertion in model container [2022-11-25 23:56:43,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:42" (2/3) ... [2022-11-25 23:56:43,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43198802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:56:43, skipping insertion in model container [2022-11-25 23:56:43,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:43" (3/3) ... [2022-11-25 23:56:43,099 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_52_bad.i [2022-11-25 23:56:43,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:56:43,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:56:43,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:56:43,186 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;@21195921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:56:43,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:56:43,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-11-25 23:56:43,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:56:43,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:43,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:43,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:56:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash -757750901, now seen corresponding path program 1 times [2022-11-25 23:56:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:43,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122381261] [2022-11-25 23:56:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:43,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:56:43,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:56:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:56:43,700 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:56:43,702 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:56:43,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:56:43,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:56:43,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:56:43,710 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:56:43,715 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:56:43,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:56:43 BoogieIcfgContainer [2022-11-25 23:56:43,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:56:43,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:56:43,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:56:43,748 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:56:43,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:43" (3/4) ... [2022-11-25 23:56:43,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:56:43,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:56:43,754 INFO L158 Benchmark]: Toolchain (without parser) took 2653.91ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 105.4MB in the end (delta: 9.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-11-25 23:56:43,754 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:43,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1277.66ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 72.3MB in the end (delta: 42.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 23:56:43,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.14ms. Allocated memory is still 155.2MB. Free memory was 72.3MB in the beginning and 69.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:56:43,757 INFO L158 Benchmark]: Boogie Preprocessor took 41.26ms. Allocated memory is still 155.2MB. Free memory was 69.0MB in the beginning and 67.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:56:43,757 INFO L158 Benchmark]: RCFGBuilder took 545.02ms. Allocated memory is still 155.2MB. Free memory was 67.7MB in the beginning and 48.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:56:43,758 INFO L158 Benchmark]: TraceAbstraction took 655.54ms. Allocated memory is still 155.2MB. Free memory was 48.4MB in the beginning and 105.4MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:43,758 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 155.2MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:43,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1277.66ms. Allocated memory is still 155.2MB. Free memory was 114.7MB in the beginning and 72.3MB in the end (delta: 42.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.14ms. Allocated memory is still 155.2MB. Free memory was 72.3MB in the beginning and 69.0MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.26ms. Allocated memory is still 155.2MB. Free memory was 69.0MB in the beginning and 67.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.02ms. Allocated memory is still 155.2MB. Free memory was 67.7MB in the beginning and 48.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 655.54ms. Allocated memory is still 155.2MB. Free memory was 48.4MB in the beginning and 105.4MB in the end (delta: -57.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 155.2MB. Free memory is still 105.4MB. 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1553, overapproximation of bitwiseAnd at line 1553. 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); [L1559] 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) [L1559] RET printLine("Calling bad()...") VAL [\old(argc)=3221225473, argc=3221225473, argv={3221225475:3221225474}, argv={3221225475:3221225474}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_multiply_52_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_52b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_multiply_52c_badSink(data) [L1571] COND TRUE data < 0 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] data * 2 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1573]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=14occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2022-11-25 23:56:43,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur --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 7816a20e2e7d55d784f2865970a3ca4a7f185dbfff6808b3fd0d54b3f019aa40 --- 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-38b53e6 [2022-11-25 23:56:46,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:56:46,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:56:46,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:56:46,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:56:46,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:56:46,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:56:46,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:56:46,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:56:46,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:56:46,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:56:46,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:56:46,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:56:46,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:56:46,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:56:46,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:56:46,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:56:46,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:56:46,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:56:46,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:56:46,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:56:46,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:56:46,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:56:46,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:56:46,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:56:46,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:56:46,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:56:46,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:56:46,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:56:46,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:56:46,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:56:46,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:56:46,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:56:46,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:56:46,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:56:46,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:56:46,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:56:46,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:56:46,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:56:46,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:56:46,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:56:46,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:56:46,838 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:56:46,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:56:46,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:56:46,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:56:46,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:56:46,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:56:46,846 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:56:46,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:56:46,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:56:46,847 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:56:46,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:56:46,849 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:56:46,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:56:46,850 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:56:46,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:56:46,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:56:46,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:56:46,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:56:46,851 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:56:46,852 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:56:46,852 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:56:46,852 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:56:46,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:56:46,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:56:46,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:56:46,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:56:46,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:56:46,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:56:46,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:56:46,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:56:46,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:56:46,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:56:46,856 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:56:46,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:56:46,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:56:46,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:56:46,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:56:46,857 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_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7816a20e2e7d55d784f2865970a3ca4a7f185dbfff6808b3fd0d54b3f019aa40 [2022-11-25 23:56:47,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:56:47,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:56:47,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:56:47,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:56:47,412 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:56:47,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i [2022-11-25 23:56:50,860 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:56:51,421 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:56:51,422 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_52_bad.i [2022-11-25 23:56:51,448 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data/65ea70963/f38dbf737ef84dc5943034a71151da38/FLAG40a91dc05 [2022-11-25 23:56:51,471 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/data/65ea70963/f38dbf737ef84dc5943034a71151da38 [2022-11-25 23:56:51,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:56:51,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:56:51,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:56:51,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:56:51,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:56:51,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:56:51" (1/1) ... [2022-11-25 23:56:51,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9e1df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:51, skipping insertion in model container [2022-11-25 23:56:51,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:56:51" (1/1) ... [2022-11-25 23:56:51,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:56:51,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:56:52,118 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:56:52,684 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:56:52,691 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:52,693 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:52,696 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:52,697 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:52,738 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:56:52,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:56:52,773 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:56:52,808 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:56:52,921 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:56:52,927 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:52,929 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:56:52,937 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:52,937 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:56:52,950 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:56:52,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:56:53,190 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:56:53,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53 WrapperNode [2022-11-25 23:56:53,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:56:53,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:56:53,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:56:53,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:56:53,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,298 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2022-11-25 23:56:53,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:56:53,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:56:53,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:56:53,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:56:53,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:56:53,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:56:53,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:56:53,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:56:53,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (1/1) ... [2022-11-25 23:56:53,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:56:53,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:53,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:56:53,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:56:53,449 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:56:53,450 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:56:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:56:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:56:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:56:53,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:56:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:56:53,752 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:56:53,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:56:53,900 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:56:53,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:56:53,908 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:56:53,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:53 BoogieIcfgContainer [2022-11-25 23:56:53,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:56:53,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:56:53,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:56:53,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:56:53,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:56:51" (1/3) ... [2022-11-25 23:56:53,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b233ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:56:53, skipping insertion in model container [2022-11-25 23:56:53,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:56:53" (2/3) ... [2022-11-25 23:56:53,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b233ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:56:53, skipping insertion in model container [2022-11-25 23:56:53,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:53" (3/3) ... [2022-11-25 23:56:53,923 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_52_bad.i [2022-11-25 23:56:53,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:56:53,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:56:54,024 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:56:54,035 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;@3b90bbf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:56:54,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:56:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:56:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:56:54,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:54,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:54,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:56:54,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash 84697761, now seen corresponding path program 1 times [2022-11-25 23:56:54,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:56:54,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999368265] [2022-11-25 23:56:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:54,087 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 [2022-11-25 23:56:54,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:56:54,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:56:54,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:56:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:56:54,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:56:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:56:54,408 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:56:54,411 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:56:54,412 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:56:54,414 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:56:54,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:56:54,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:56:54,630 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:56:54,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:56:54,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:56:54 BoogieIcfgContainer [2022-11-25 23:56:54,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:56:54,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:56:54,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:56:54,710 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:56:54,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:56:53" (3/4) ... [2022-11-25 23:56:54,713 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 23:56:54,791 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:56:54,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:56:54,792 INFO L158 Benchmark]: Toolchain (without parser) took 3315.87ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 56.8MB in the beginning and 61.2MB in the end (delta: -4.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-25 23:56:54,793 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:54,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1713.98ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 56.6MB in the beginning and 67.1MB in the end (delta: -10.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-11-25 23:56:54,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.73ms. Allocated memory is still 115.3MB. Free memory was 67.1MB in the beginning and 64.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:56:54,794 INFO L158 Benchmark]: Boogie Preprocessor took 39.90ms. Allocated memory is still 115.3MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:56:54,795 INFO L158 Benchmark]: RCFGBuilder took 566.25ms. Allocated memory is still 115.3MB. Free memory was 61.9MB in the beginning and 80.7MB in the end (delta: -18.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-11-25 23:56:54,795 INFO L158 Benchmark]: TraceAbstraction took 793.20ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 64.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:56:54,796 INFO L158 Benchmark]: Witness Printer took 82.67ms. Allocated memory is still 115.3MB. Free memory was 64.0MB in the beginning and 61.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:56:54,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1713.98ms. Allocated memory was 83.9MB in the beginning and 115.3MB in the end (delta: 31.5MB). Free memory was 56.6MB in the beginning and 67.1MB in the end (delta: -10.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.73ms. Allocated memory is still 115.3MB. Free memory was 67.1MB in the beginning and 64.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.90ms. Allocated memory is still 115.3MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 566.25ms. Allocated memory is still 115.3MB. Free memory was 61.9MB in the beginning and 80.7MB in the end (delta: -18.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 793.20ms. Allocated memory is still 115.3MB. Free memory was 80.1MB in the beginning and 64.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 82.67ms. Allocated memory is still 115.3MB. Free memory was 64.0MB in the beginning and 61.2MB in the end (delta: 2.7MB). 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: 1573]: 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] [L1559] 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) [L1559] 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] [L1560] CALL CWE191_Integer_Underflow__int_rand_multiply_52_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] 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()=0, rand()=32768, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-1073741825] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_52b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_multiply_52c_badSink(data) [L1571] COND TRUE data < 0 VAL [\old(data)=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] data * 2 VAL [\old(data)=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=24occurred 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, 12 NumberOfCodeBlocks, 12 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 proved your program to be incorrect! [2022-11-25 23:56:54,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6fb8176-53d5-4535-a84d-e42219794ad4/bin/utaipan-ByfvJB40ur/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)