./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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_414e7a7a-616a-40b2-af41-06701d330eb0/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 54a2b07f3c9b5d651cc1badfb2aaac82869f29be5b314d554ef071caa013b437 --- 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 [2022-11-26 00:15:38,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:15:38,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:15:38,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:15:38,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:15:38,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:15:38,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:15:38,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:15:38,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:15:38,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:15:38,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:15:38,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:15:38,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:15:38,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:15:38,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:15:38,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:15:38,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:15:38,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:15:38,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:15:38,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:15:38,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:15:38,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:15:38,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:15:38,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:15:38,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:15:38,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:15:38,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:15:38,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:15:38,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:15:38,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:15:38,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:15:38,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:15:38,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:15:38,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:15:38,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:15:38,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:15:38,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:15:38,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:15:38,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:15:38,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:15:38,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:15:38,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:15:38,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:15:38,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:15:38,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:15:38,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:15:38,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:15:38,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:15:38,324 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:15:38,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:15:38,325 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:15:38,325 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:15:38,326 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:15:38,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:15:38,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:15:38,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:15:38,327 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:15:38,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:15:38,328 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:15:38,328 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:15:38,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:15:38,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:15:38,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:15:38,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:15:38,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:15:38,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:15:38,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:15:38,330 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:15:38,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:15:38,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:15:38,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:15:38,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:15:38,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:15:38,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:38,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:15:38,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:15:38,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:15:38,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:15:38,333 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:15:38,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:15:38,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:15:38,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:15:38,334 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_414e7a7a-616a-40b2-af41-06701d330eb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54a2b07f3c9b5d651cc1badfb2aaac82869f29be5b314d554ef071caa013b437 [2022-11-26 00:15:38,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:15:38,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:15:38,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:15:38,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:15:38,664 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:15:38,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i [2022-11-26 00:15:41,675 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:15:42,081 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:15:42,082 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i [2022-11-26 00:15:42,103 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data/8f323ab26/9404944d1b6d4ce9bd92bf10347eb790/FLAG7cb19926e [2022-11-26 00:15:42,288 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data/8f323ab26/9404944d1b6d4ce9bd92bf10347eb790 [2022-11-26 00:15:42,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:15:42,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:15:42,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:42,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:15:42,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:15:42,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:42" (1/1) ... [2022-11-26 00:15:42,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21eff5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:42, skipping insertion in model container [2022-11-26 00:15:42,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:42" (1/1) ... [2022-11-26 00:15:42,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:15:42,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:15:42,763 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:15:43,288 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:15:43,294 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:43,297 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:43,305 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:43,306 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:43,351 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:15:43,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:43,367 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:15:43,403 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:15:43,482 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:15:43,496 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:43,497 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:43,499 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:43,500 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:43,505 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:15:43,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:43,657 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:15:43,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43 WrapperNode [2022-11-26 00:15:43,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:43,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:43,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:15:43,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:15:43,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,736 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2022-11-26 00:15:43,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:43,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:15:43,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:15:43,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:15:43,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,765 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:15:43,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:15:43,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:15:43,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:15:43,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (1/1) ... [2022-11-26 00:15:43,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:43,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:43,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:15:43,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:15:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:15:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:15:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-26 00:15:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-26 00:15:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:15:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:15:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:15:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:15:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:15:44,113 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:15:44,115 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:15:44,267 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:15:44,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:15:44,379 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:15:44,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:44 BoogieIcfgContainer [2022-11-26 00:15:44,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:15:44,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:15:44,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:15:44,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:15:44,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:15:42" (1/3) ... [2022-11-26 00:15:44,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e98f49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:44, skipping insertion in model container [2022-11-26 00:15:44,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:43" (2/3) ... [2022-11-26 00:15:44,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e98f49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:44, skipping insertion in model container [2022-11-26 00:15:44,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:44" (3/3) ... [2022-11-26 00:15:44,391 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_11_bad.i [2022-11-26 00:15:44,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:15:44,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:15:44,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:15:44,472 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;@793af062, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:15:44,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:15:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:15:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:15:44,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:44,486 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:44,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:15:44,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash 150707878, now seen corresponding path program 1 times [2022-11-26 00:15:44,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:44,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370593102] [2022-11-26 00:15:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:15:44,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:15:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:15:44,799 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:15:44,801 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:15:44,802 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:15:44,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:15:44,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:15:44,809 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:15:44,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:15:44,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:15:44 BoogieIcfgContainer [2022-11-26 00:15:44,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:15:44,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:15:44,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:15:44,859 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:15:44,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:44" (3/4) ... [2022-11-26 00:15:44,865 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:15:44,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:15:44,866 INFO L158 Benchmark]: Toolchain (without parser) took 2573.33ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 119.1MB in the beginning and 117.2MB in the end (delta: 1.9MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2022-11-26 00:15:44,867 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 157.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:15:44,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1365.38ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 56.2MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-26 00:15:44,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.25ms. Allocated memory is still 157.3MB. Free memory was 56.2MB in the beginning and 53.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:44,869 INFO L158 Benchmark]: Boogie Preprocessor took 31.66ms. Allocated memory is still 157.3MB. Free memory was 53.1MB in the beginning and 51.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:44,874 INFO L158 Benchmark]: RCFGBuilder took 611.87ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 51.5MB in the beginning and 141.3MB in the end (delta: -89.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-26 00:15:44,875 INFO L158 Benchmark]: TraceAbstraction took 471.91ms. Allocated memory is still 188.7MB. Free memory was 140.3MB in the beginning and 118.3MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:44,877 INFO L158 Benchmark]: Witness Printer took 6.83ms. Allocated memory is still 188.7MB. Free memory was 118.3MB in the beginning and 117.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:15:44,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 157.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1365.38ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 56.2MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.25ms. Allocated memory is still 157.3MB. Free memory was 56.2MB in the beginning and 53.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.66ms. Allocated memory is still 157.3MB. Free memory was 53.1MB in the beginning and 51.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.87ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 51.5MB in the beginning and 141.3MB in the end (delta: -89.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 471.91ms. Allocated memory is still 188.7MB. Free memory was 140.3MB in the beginning and 118.3MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.83ms. Allocated memory is still 188.7MB. Free memory was 118.3MB in the beginning and 117.2MB 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={1073741828:1073741826}, argv={1073741828:1073741826}, 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_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=1073741827] [L1556] COND TRUE globalReturnsTrue() [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=1073741827] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:15:44,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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_414e7a7a-616a-40b2-af41-06701d330eb0/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 54a2b07f3c9b5d651cc1badfb2aaac82869f29be5b314d554ef071caa013b437 --- 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 [2022-11-26 00:15:47,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:15:47,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:15:47,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:15:47,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:15:47,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:15:47,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:15:47,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:15:47,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:15:47,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:15:47,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:15:47,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:15:47,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:15:47,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:15:47,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:15:47,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:15:47,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:15:47,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:15:47,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:15:47,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:15:47,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:15:47,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:15:47,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:15:47,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:15:47,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:15:47,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:15:47,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:15:47,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:15:47,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:15:47,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:15:47,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:15:47,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:15:47,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:15:47,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:15:47,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:15:47,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:15:47,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:15:47,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:15:47,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:15:47,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:15:47,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:15:47,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:15:47,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:15:47,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:15:47,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:15:47,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:15:47,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:15:47,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:15:47,507 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:15:47,508 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:15:47,508 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:15:47,508 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:15:47,509 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:15:47,510 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:15:47,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:15:47,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:15:47,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:15:47,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:15:47,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:15:47,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:15:47,512 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:15:47,512 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:15:47,513 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:15:47,513 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:15:47,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:15:47,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:15:47,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:15:47,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:15:47,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:15:47,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:15:47,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:47,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:15:47,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:15:47,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:15:47,516 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:15:47,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:15:47,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:15:47,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:15:47,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:15:47,518 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_414e7a7a-616a-40b2-af41-06701d330eb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54a2b07f3c9b5d651cc1badfb2aaac82869f29be5b314d554ef071caa013b437 [2022-11-26 00:15:47,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:15:48,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:15:48,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:15:48,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:15:48,005 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:15:48,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i [2022-11-26 00:15:51,009 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:15:51,354 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:15:51,354 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_11_bad.i [2022-11-26 00:15:51,379 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data/13ea47178/6a31e6ec81ee4fcf801a050af22685b4/FLAG520bc3cbc [2022-11-26 00:15:51,397 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/data/13ea47178/6a31e6ec81ee4fcf801a050af22685b4 [2022-11-26 00:15:51,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:15:51,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:15:51,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:51,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:15:51,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:15:51,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:51" (1/1) ... [2022-11-26 00:15:51,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f00f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:51, skipping insertion in model container [2022-11-26 00:15:51,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:51" (1/1) ... [2022-11-26 00:15:51,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:15:51,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:15:51,895 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:15:52,319 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:15:52,325 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:52,327 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:52,329 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:52,336 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:52,362 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:15:52,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:52,383 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:15:52,406 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:15:52,462 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:15:52,464 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:52,465 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:15:52,467 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:52,468 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:15:52,474 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:15:52,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:52,627 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:15:52,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52 WrapperNode [2022-11-26 00:15:52,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:52,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:52,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:15:52,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:15:52,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,717 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2022-11-26 00:15:52,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:52,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:15:52,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:15:52,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:15:52,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:15:52,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:15:52,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:15:52,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:15:52,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (1/1) ... [2022-11-26 00:15:52,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:52,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:52,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:15:52,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:15:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:15:52,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:15:52,842 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-26 00:15:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-26 00:15:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:15:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:15:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:15:52,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:15:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:15:53,047 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:15:53,050 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:15:53,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:15:53,204 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:15:53,219 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:15:53,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:53 BoogieIcfgContainer [2022-11-26 00:15:53,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:15:53,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:15:53,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:15:53,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:15:53,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:15:51" (1/3) ... [2022-11-26 00:15:53,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccd5a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:53, skipping insertion in model container [2022-11-26 00:15:53,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:52" (2/3) ... [2022-11-26 00:15:53,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccd5a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:53, skipping insertion in model container [2022-11-26 00:15:53,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:53" (3/3) ... [2022-11-26 00:15:53,239 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_11_bad.i [2022-11-26 00:15:53,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:15:53,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:15:53,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:15:53,318 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;@50b2086e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:15:53,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:15:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:15:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:15:53,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:53,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:53,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:15:53,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2022-11-26 00:15:53,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:53,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915178925] [2022-11-26 00:15:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:53,365 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 [2022-11-26 00:15:53,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:53,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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) [2022-11-26 00:15:53,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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 [2022-11-26 00:15:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:53,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:15:53,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:15:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:15:53,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:15:53,594 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:15:53,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915178925] [2022-11-26 00:15:53,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915178925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:53,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:53,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:15:53,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134954968] [2022-11-26 00:15:53,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:53,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:15:53,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:15:53,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:15:53,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:53,645 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:15:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:53,706 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-11-26 00:15:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:15:53,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-26 00:15:53,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:53,718 INFO L225 Difference]: With dead ends: 47 [2022-11-26 00:15:53,719 INFO L226 Difference]: Without dead ends: 19 [2022-11-26 00:15:53,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:15:53,725 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:53,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:15:53,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-26 00:15:53,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-26 00:15:53,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:15:53,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-11-26 00:15:53,765 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2022-11-26 00:15:53,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:53,767 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-11-26 00:15:53,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:15:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-11-26 00:15:53,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:15:53,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:53,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:53,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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 [2022-11-26 00:15:53,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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 [2022-11-26 00:15:53,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:15:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2022-11-26 00:15:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:15:53,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182394378] [2022-11-26 00:15:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:53,986 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 [2022-11-26 00:15:53,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:15:53,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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) [2022-11-26 00:15:53,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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 [2022-11-26 00:15:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:15:54,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:15:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:15:54,148 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:15:54,149 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:15:54,153 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:15:54,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:15:54,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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 [2022-11-26 00:15:54,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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 [2022-11-26 00:15:54,372 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:15:54,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:15:54,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:15:54 BoogieIcfgContainer [2022-11-26 00:15:54,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:15:54,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:15:54,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:15:54,429 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:15:54,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:53" (3/4) ... [2022-11-26 00:15:54,439 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:15:54,501 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:15:54,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:15:54,502 INFO L158 Benchmark]: Toolchain (without parser) took 3100.41ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 42.5MB in the beginning and 53.6MB in the end (delta: -11.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,502 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:15:54,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1225.86ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 42.3MB in the beginning and 50.0MB in the end (delta: -7.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.75ms. Allocated memory is still 100.7MB. Free memory was 49.5MB in the beginning and 46.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,504 INFO L158 Benchmark]: Boogie Preprocessor took 32.27ms. Allocated memory is still 100.7MB. Free memory was 46.4MB in the beginning and 44.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,504 INFO L158 Benchmark]: RCFGBuilder took 469.83ms. Allocated memory is still 100.7MB. Free memory was 44.4MB in the beginning and 61.6MB in the end (delta: -17.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,505 INFO L158 Benchmark]: TraceAbstraction took 1205.37ms. Allocated memory is still 100.7MB. Free memory was 61.1MB in the beginning and 56.6MB in the end (delta: 4.4MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,505 INFO L158 Benchmark]: Witness Printer took 72.27ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 53.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:15:54,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1225.86ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 42.3MB in the beginning and 50.0MB in the end (delta: -7.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.75ms. Allocated memory is still 100.7MB. Free memory was 49.5MB in the beginning and 46.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.27ms. Allocated memory is still 100.7MB. Free memory was 46.4MB in the beginning and 44.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.83ms. Allocated memory is still 100.7MB. Free memory was 44.4MB in the beginning and 61.6MB in the end (delta: -17.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1205.37ms. Allocated memory is still 100.7MB. Free memory was 61.1MB in the beginning and 56.6MB in the end (delta: 4.4MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 72.27ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 53.6MB in the end (delta: 3.1MB). 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_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=2, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [L1559] data-- 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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:15:54,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_414e7a7a-616a-40b2-af41-06701d330eb0/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)