./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_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_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 7cb1cbc2894625d806f8909c2cfa5b2472c674605089a92fe0ac030e304dde65 --- 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 22:16:36,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:16:36,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:16:36,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:16:36,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:16:36,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:16:36,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:16:36,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:16:36,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:16:36,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:16:36,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:16:36,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:16:36,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:16:36,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:16:36,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:16:36,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:16:36,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:16:36,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:16:36,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:16:36,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:16:36,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:16:36,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:16:36,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:16:36,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:16:36,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:16:36,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:16:36,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:16:36,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:16:36,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:16:36,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:16:36,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:16:36,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:16:36,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:16:36,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:16:36,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:16:36,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:16:36,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:16:36,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:16:36,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:16:36,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:16:36,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:16:36,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 22:16:36,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:16:36,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:16:36,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:16:36,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:16:36,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:16:36,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:16:36,401 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:16:36,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:16:36,401 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:16:36,401 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:16:36,403 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:16:36,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:16:36,403 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:16:36,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:16:36,404 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:16:36,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:16:36,404 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:16:36,405 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:16:36,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:16:36,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:16:36,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:16:36,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:16:36,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:16:36,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:16:36,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:16:36,409 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:16:36,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:16:36,410 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:16:36,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:16:36,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:16:36,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:16:36,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:36,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:16:36,412 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:16:36,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:16:36,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:16:36,413 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:16:36,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:16:36,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:16:36,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:16:36,414 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_40fecfa8-82b1-4239-bf23-85e3197d6a81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cb1cbc2894625d806f8909c2cfa5b2472c674605089a92fe0ac030e304dde65 [2022-11-25 22:16:36,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:16:36,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:16:36,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:16:36,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:16:36,812 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:16:36,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_bad.i [2022-11-25 22:16:40,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:16:40,493 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:16:40,494 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_bad.i [2022-11-25 22:16:40,528 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data/d054d63c5/9b9cdee50d3a437f851c1a0278168a16/FLAG62ba890c0 [2022-11-25 22:16:40,547 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data/d054d63c5/9b9cdee50d3a437f851c1a0278168a16 [2022-11-25 22:16:40,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:16:40,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:16:40,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:40,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:16:40,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:16:40,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:40" (1/1) ... [2022-11-25 22:16:40,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f3ccec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:40, skipping insertion in model container [2022-11-25 22:16:40,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:40" (1/1) ... [2022-11-25 22:16:40,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:16:40,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:16:41,087 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:16:41,691 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:16:41,697 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:41,700 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:41,703 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:41,704 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:41,742 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:16:41,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:41,755 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:16:41,791 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:16:41,876 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:16:41,878 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:41,880 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:41,882 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:41,883 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:41,890 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:16:41,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:42,121 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:16:42,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42 WrapperNode [2022-11-25 22:16:42,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:42,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:42,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:16:42,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:16:42,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,210 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-25 22:16:42,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:42,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:16:42,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:16:42,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:16:42,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,245 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:16:42,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:16:42,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:16:42,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:16:42,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (1/1) ... [2022-11-25 22:16:42,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:42,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:42,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:16:42,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:16:42,366 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:16:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:16:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:16:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:16:42,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:16:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:16:42,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:16:42,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:16:42,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:16:42,724 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:16:42,902 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:16:42,903 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:16:42,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:42 BoogieIcfgContainer [2022-11-25 22:16:42,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:16:42,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:16:42,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:16:42,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:16:42,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:16:40" (1/3) ... [2022-11-25 22:16:42,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea415be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:42, skipping insertion in model container [2022-11-25 22:16:42,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:42" (2/3) ... [2022-11-25 22:16:42,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea415be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:42, skipping insertion in model container [2022-11-25 22:16:42,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:42" (3/3) ... [2022-11-25 22:16:42,916 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_14_bad.i [2022-11-25 22:16:42,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:16:42,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:16:42,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:16:42,998 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;@45660ff6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:16:42,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:16:43,003 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 22:16:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:16:43,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:43,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:43,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:16:43,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:43,019 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-11-25 22:16:43,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:43,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982403201] [2022-11-25 22:16:43,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:43,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:43,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:16:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:43,377 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:16:43,379 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:16:43,381 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:16:43,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:16:43,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:16:43,389 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:16:43,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:16:43,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:16:43 BoogieIcfgContainer [2022-11-25 22:16:43,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:16:43,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:16:43,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:16:43,424 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:16:43,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:42" (3/4) ... [2022-11-25 22:16:43,429 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:16:43,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:16:43,431 INFO L158 Benchmark]: Toolchain (without parser) took 2875.04ms. Allocated memory is still 163.6MB. Free memory was 115.3MB in the beginning and 113.3MB in the end (delta: 1.9MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-25 22:16:43,431 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:16:43,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1563.85ms. Allocated memory is still 163.6MB. Free memory was 115.3MB in the beginning and 97.5MB in the end (delta: 17.7MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2022-11-25 22:16:43,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.81ms. Allocated memory is still 163.6MB. Free memory was 97.5MB in the beginning and 94.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:16:43,434 INFO L158 Benchmark]: Boogie Preprocessor took 38.38ms. Allocated memory is still 163.6MB. Free memory was 94.5MB in the beginning and 93.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:16:43,434 INFO L158 Benchmark]: RCFGBuilder took 654.91ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 72.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 22:16:43,435 INFO L158 Benchmark]: TraceAbstraction took 514.70ms. Allocated memory is still 163.6MB. Free memory was 72.4MB in the beginning and 114.4MB in the end (delta: -42.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:16:43,436 INFO L158 Benchmark]: Witness Printer took 5.94ms. Allocated memory is still 163.6MB. Free memory was 114.4MB in the beginning and 113.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:16:43,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1563.85ms. Allocated memory is still 163.6MB. Free memory was 115.3MB in the beginning and 97.5MB in the end (delta: 17.7MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.81ms. Allocated memory is still 163.6MB. Free memory was 97.5MB in the beginning and 94.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.38ms. Allocated memory is still 163.6MB. Free memory was 94.5MB in the beginning and 93.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.91ms. Allocated memory is still 163.6MB. Free memory was 93.4MB in the beginning and 72.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 514.70ms. Allocated memory is still 163.6MB. Free memory was 72.4MB in the beginning and 114.4MB in the end (delta: -42.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.94ms. Allocated memory is still 163.6MB. Free memory was 114.4MB in the beginning and 113.3MB in the end (delta: 1.0MB). 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)=1073741825, argc=1073741825, argv={1073741827:1073741826}, argv={1073741827:1073741826}, 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_postdec_14_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE globalFive==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE globalFive==5 [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=1073741829] - 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 0.1s 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 22:16:43,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 7cb1cbc2894625d806f8909c2cfa5b2472c674605089a92fe0ac030e304dde65 --- 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 22:16:46,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:16:46,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:16:46,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:16:46,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:16:46,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:16:46,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:16:46,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:16:46,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:16:46,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:16:46,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:16:46,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:16:46,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:16:46,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:16:46,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:16:46,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:16:46,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:16:46,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:16:46,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:16:46,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:16:46,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:16:46,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:16:46,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:16:46,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:16:46,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:16:46,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:16:46,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:16:46,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:16:46,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:16:46,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:16:46,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:16:46,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:16:46,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:16:46,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:16:46,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:16:46,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:16:46,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:16:46,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:16:46,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:16:46,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:16:46,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:16:46,337 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 22:16:46,358 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:16:46,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:16:46,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:16:46,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:16:46,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:16:46,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:16:46,361 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:16:46,361 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:16:46,361 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:16:46,361 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:16:46,362 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:16:46,362 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:16:46,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:16:46,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:16:46,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:16:46,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:16:46,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:16:46,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:16:46,364 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:16:46,364 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:16:46,364 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:16:46,365 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:16:46,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:16:46,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:16:46,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:16:46,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:16:46,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:16:46,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:16:46,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:46,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:16:46,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:16:46,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:16:46,367 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:16:46,367 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:16:46,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:16:46,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:16:46,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:16:46,368 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_40fecfa8-82b1-4239-bf23-85e3197d6a81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cb1cbc2894625d806f8909c2cfa5b2472c674605089a92fe0ac030e304dde65 [2022-11-25 22:16:46,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:16:46,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:16:46,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:16:46,759 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:16:46,760 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:16:46,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_bad.i [2022-11-25 22:16:49,921 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:16:50,378 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:16:50,378 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_14_bad.i [2022-11-25 22:16:50,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data/53fac86f7/1708d9e074d8497f8abbc746fb01af20/FLAG181854fe0 [2022-11-25 22:16:50,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/data/53fac86f7/1708d9e074d8497f8abbc746fb01af20 [2022-11-25 22:16:50,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:16:50,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:16:50,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:50,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:16:50,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:16:50,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:50" (1/1) ... [2022-11-25 22:16:50,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dec100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:50, skipping insertion in model container [2022-11-25 22:16:50,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:16:50" (1/1) ... [2022-11-25 22:16:50,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:16:50,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:16:50,979 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:16:51,761 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:16:51,774 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:51,784 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:51,797 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:51,801 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:51,843 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:16:51,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:51,869 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:16:51,904 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:16:52,009 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:16:52,012 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:52,015 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:16:52,018 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:52,019 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:16:52,024 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:16:52,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:16:52,203 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:16:52,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52 WrapperNode [2022-11-25 22:16:52,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:16:52,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:52,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:16:52,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:16:52,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,280 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-25 22:16:52,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:16:52,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:16:52,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:16:52,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:16:52,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,318 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:16:52,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:16:52,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:16:52,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:16:52,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (1/1) ... [2022-11-25 22:16:52,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:16:52,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:52,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:16:52,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:16:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:16:52,418 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:16:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:16:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:16:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:16:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:16:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:16:52,598 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:16:52,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:16:52,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:16:52,868 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:16:52,869 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:16:52,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:52 BoogieIcfgContainer [2022-11-25 22:16:52,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:16:52,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:16:52,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:16:52,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:16:52,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:16:50" (1/3) ... [2022-11-25 22:16:52,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d3ab71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:52, skipping insertion in model container [2022-11-25 22:16:52,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:16:52" (2/3) ... [2022-11-25 22:16:52,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d3ab71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:16:52, skipping insertion in model container [2022-11-25 22:16:52,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:52" (3/3) ... [2022-11-25 22:16:52,881 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_14_bad.i [2022-11-25 22:16:52,902 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:16:52,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:16:52,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:16:52,968 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;@3298ca75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:16:52,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:16:52,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:16:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:16:52,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:52,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:52,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:16:52,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:52,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-25 22:16:53,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:16:53,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496749489] [2022-11-25 22:16:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:53,006 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 22:16:53,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:16:53,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 22:16:53,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 22:16:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:53,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:16:53,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:16:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:16:53,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:16:53,213 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:16:53,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496749489] [2022-11-25 22:16:53,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496749489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:53,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:53,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:16:53,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976540888] [2022-11-25 22:16:53,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:53,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:16:53,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:16:53,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:16:53,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:53,292 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:16:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:53,362 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-25 22:16:53,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:16:53,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 22:16:53,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:53,376 INFO L225 Difference]: With dead ends: 48 [2022-11-25 22:16:53,376 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 22:16:53,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:53,386 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:53,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:16:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 22:16:53,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 22:16:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:16:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 22:16:53,449 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-25 22:16:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:53,450 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 22:16:53,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:16:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 22:16:53,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:16:53,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:53,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:53,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 22:16:53,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 22:16:53,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:16:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:53,672 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-25 22:16:53,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:16:53,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194230255] [2022-11-25 22:16:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:53,676 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 [2022-11-25 22:16:53,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:16:53,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 22:16:53,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 (3)] Waiting until timeout for monitored process [2022-11-25 22:16:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:53,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:16:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:16:53,859 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 22:16:53,859 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:16:53,862 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:16:53,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:16:53,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:16:54,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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 22:16:54,084 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:16:54,090 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:16:54,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:16:54 BoogieIcfgContainer [2022-11-25 22:16:54,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:16:54,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:16:54,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:16:54,144 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:16:54,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:16:52" (3/4) ... [2022-11-25 22:16:54,151 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:16:54,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:16:54,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:16:54,216 INFO L158 Benchmark]: Toolchain (without parser) took 3780.57ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 51.7MB in the beginning and 77.0MB in the end (delta: -25.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-11-25 22:16:54,217 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:16:54,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1764.76ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 51.5MB in the beginning and 61.6MB in the end (delta: -10.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-11-25 22:16:54,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.80ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 58.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:16:54,218 INFO L158 Benchmark]: Boogie Preprocessor took 43.02ms. Allocated memory is still 107.0MB. Free memory was 58.4MB in the beginning and 56.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:16:54,220 INFO L158 Benchmark]: RCFGBuilder took 546.08ms. Allocated memory is still 107.0MB. Free memory was 56.3MB in the beginning and 75.0MB in the end (delta: -18.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-11-25 22:16:54,221 INFO L158 Benchmark]: TraceAbstraction took 1269.00ms. Allocated memory is still 107.0MB. Free memory was 74.4MB in the beginning and 44.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 22:16:54,221 INFO L158 Benchmark]: Witness Printer took 71.27ms. Allocated memory is still 107.0MB. Free memory was 44.4MB in the beginning and 77.0MB in the end (delta: -32.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:16:54,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1764.76ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 51.5MB in the beginning and 61.6MB in the end (delta: -10.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.80ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 58.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.02ms. Allocated memory is still 107.0MB. Free memory was 58.4MB in the beginning and 56.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 546.08ms. Allocated memory is still 107.0MB. Free memory was 56.3MB in the beginning and 75.0MB in the end (delta: -18.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1269.00ms. Allocated memory is still 107.0MB. Free memory was 74.4MB in the beginning and 44.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 71.27ms. Allocated memory is still 107.0MB. Free memory was 44.4MB in the beginning and 77.0MB in the end (delta: -32.6MB). Peak memory consumption was 4.2MB. 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_postdec_14_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=1, rand()=65536, 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)) [L1556] COND TRUE globalFive==5 [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 30 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:16:54,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40fecfa8-82b1-4239-bf23-85e3197d6a81/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)