./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4c140b8546fb24524e8a961a0c3bbe100d764893c615811095174f9c1358afc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:35:45,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:35:45,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:35:45,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:35:45,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:35:45,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:35:45,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:35:45,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:35:45,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:35:45,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:35:45,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:35:45,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:35:45,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:35:45,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:35:45,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:35:45,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:35:45,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:35:45,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:35:45,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:35:45,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:35:45,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:35:45,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:35:45,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:35:45,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:35:45,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:35:45,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:35:45,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:35:45,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:35:45,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:35:45,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:35:45,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:35:45,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:35:45,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:35:45,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:35:45,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:35:45,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:35:45,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:35:45,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:35:45,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:35:45,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:35:45,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:35:45,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:35:45,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:35:45,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:35:45,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:35:45,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:35:45,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:35:45,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:35:45,303 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:35:45,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:35:45,304 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:35:45,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:35:45,304 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:35:45,304 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:35:45,304 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:35:45,304 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:35:45,305 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:35:45,305 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:35:45,305 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:35:45,305 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:35:45,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:35:45,306 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:35:45,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:35:45,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:35:45,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:35:45,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:35:45,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:35:45,307 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:35:45,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:35:45,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:35:45,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:35:45,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:35:45,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:35:45,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:35:45,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:35:45,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:35:45,309 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_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4c140b8546fb24524e8a961a0c3bbe100d764893c615811095174f9c1358afc [2022-12-14 15:35:45,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:35:45,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:35:45,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:35:45,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:35:45,522 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:35:45,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i [2022-12-14 15:35:48,209 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:35:48,480 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:35:48,481 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i [2022-12-14 15:35:48,496 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data/04770d760/0897fa62e17045d58be38742b16a191c/FLAG99ffc0742 [2022-12-14 15:35:48,508 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data/04770d760/0897fa62e17045d58be38742b16a191c [2022-12-14 15:35:48,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:35:48,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:35:48,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:35:48,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:35:48,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:35:48,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:35:48" (1/1) ... [2022-12-14 15:35:48,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509b950a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:48, skipping insertion in model container [2022-12-14 15:35:48,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:35:48" (1/1) ... [2022-12-14 15:35:48,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:35:48,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:35:48,767 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:35:49,050 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:35:49,055 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:49,056 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:49,058 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:49,059 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:49,078 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:35:49,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:35:49,086 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:35:49,099 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:35:49,129 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:35:49,130 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:49,131 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:49,133 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:49,133 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:49,137 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:35:49,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:35:49,214 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:35:49,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49 WrapperNode [2022-12-14 15:35:49,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:35:49,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:35:49,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:35:49,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:35:49,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,250 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 15:35:49,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:35:49,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:35:49,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:35:49,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:35:49,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:35:49,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:35:49,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:35:49,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:35:49,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (1/1) ... [2022-12-14 15:35:49,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:35:49,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:35:49,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:35:49,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:35:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:35:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:35:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:35:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:35:49,430 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:35:49,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:35:49,560 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:35:49,644 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:35:49,644 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:35:49,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:35:49 BoogieIcfgContainer [2022-12-14 15:35:49,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:35:49,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:35:49,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:35:49,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:35:49,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:35:48" (1/3) ... [2022-12-14 15:35:49,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eda713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:35:49, skipping insertion in model container [2022-12-14 15:35:49,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:49" (2/3) ... [2022-12-14 15:35:49,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eda713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:35:49, skipping insertion in model container [2022-12-14 15:35:49,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:35:49" (3/3) ... [2022-12-14 15:35:49,656 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_13_bad.i [2022-12-14 15:35:49,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:35:49,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:35:49,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:35:49,727 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;@4bd84d0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:35:49,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:35:49,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:35:49,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:35:49,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:35:49,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:35:49,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:35:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:35:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-12-14 15:35:49,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:35:49,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693057276] [2022-12-14 15:35:49,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:35:49,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:35:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:35:49,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:35:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:35:49,925 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:35:49,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:35:49,927 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:35:49,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:35:49,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:35:49,933 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:35:49,936 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:35:49,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:35:49 BoogieIcfgContainer [2022-12-14 15:35:49,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:35:49,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:35:49,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:35:49,952 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:35:49,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:35:49" (3/4) ... [2022-12-14 15:35:49,954 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:35:49,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:35:49,956 INFO L158 Benchmark]: Toolchain (without parser) took 1443.99ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 78.9MB in the beginning and 82.9MB in the end (delta: -4.0MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-12-14 15:35:49,956 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:35:49,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.81ms. Allocated memory is still 121.6MB. Free memory was 78.6MB in the beginning and 61.1MB in the end (delta: 17.4MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-12-14 15:35:49,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.78ms. Allocated memory is still 121.6MB. Free memory was 61.1MB in the beginning and 58.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:35:49,957 INFO L158 Benchmark]: Boogie Preprocessor took 17.21ms. Allocated memory is still 121.6MB. Free memory was 58.1MB in the beginning and 56.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:35:49,957 INFO L158 Benchmark]: RCFGBuilder took 378.43ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 56.5MB in the beginning and 105.4MB in the end (delta: -48.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-12-14 15:35:49,958 INFO L158 Benchmark]: TraceAbstraction took 301.32ms. Allocated memory is still 148.9MB. Free memory was 104.6MB in the beginning and 83.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 15:35:49,958 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 148.9MB. Free memory was 83.7MB in the beginning and 82.9MB in the end (delta: 736.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:35:49,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.81ms. Allocated memory is still 121.6MB. Free memory was 78.6MB in the beginning and 61.1MB in the end (delta: 17.4MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.78ms. Allocated memory is still 121.6MB. Free memory was 61.1MB in the beginning and 58.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.21ms. Allocated memory is still 121.6MB. Free memory was 58.1MB in the beginning and 56.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.43ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 56.5MB in the beginning and 105.4MB in the end (delta: -48.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 301.32ms. Allocated memory is still 148.9MB. Free memory was 104.6MB in the beginning and 83.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 148.9MB. Free memory was 83.7MB in the beginning and 82.9MB in the end (delta: 736.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1568] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_postdec_13_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE GLOBAL_CONST_FIVE==5 [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483651] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 15:35:49,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4c140b8546fb24524e8a961a0c3bbe100d764893c615811095174f9c1358afc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:35:51,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:35:51,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:35:51,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:35:51,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:35:51,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:35:51,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:35:51,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:35:51,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:35:51,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:35:51,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:35:51,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:35:51,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:35:51,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:35:51,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:35:51,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:35:51,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:35:51,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:35:51,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:35:51,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:35:51,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:35:51,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:35:51,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:35:51,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:35:51,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:35:51,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:35:51,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:35:51,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:35:51,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:35:51,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:35:51,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:35:51,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:35:51,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:35:51,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:35:51,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:35:51,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:35:51,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:35:51,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:35:51,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:35:51,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:35:51,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:35:51,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 15:35:51,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:35:51,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:35:51,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:35:51,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:35:51,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:35:51,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:35:51,602 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:35:51,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:35:51,602 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:35:51,602 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:35:51,602 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:35:51,602 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:35:51,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:35:51,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:35:51,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:35:51,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:35:51,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:35:51,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:35:51,604 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:35:51,604 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:35:51,604 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:35:51,605 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:35:51,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:35:51,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:35:51,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:35:51,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:35:51,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:35:51,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:35:51,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:35:51,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:35:51,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:35:51,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:35:51,606 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:35:51,607 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:35:51,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:35:51,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:35:51,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:35:51,607 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_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4c140b8546fb24524e8a961a0c3bbe100d764893c615811095174f9c1358afc [2022-12-14 15:35:51,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:35:51,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:35:51,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:35:51,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:35:51,851 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:35:51,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i [2022-12-14 15:35:54,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:35:54,640 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:35:54,641 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_13_bad.i [2022-12-14 15:35:54,654 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data/d95826d73/d5efe7b57e85481990f54d498f0ec58a/FLAG4559bd3bc [2022-12-14 15:35:54,665 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/data/d95826d73/d5efe7b57e85481990f54d498f0ec58a [2022-12-14 15:35:54,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:35:54,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:35:54,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:35:54,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:35:54,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:35:54,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:35:54" (1/1) ... [2022-12-14 15:35:54,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6411a73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:54, skipping insertion in model container [2022-12-14 15:35:54,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:35:54" (1/1) ... [2022-12-14 15:35:54,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:35:54,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:35:54,931 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:35:55,192 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:35:55,203 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:55,204 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:55,206 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:55,207 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:55,227 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:35:55,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:35:55,240 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:35:55,259 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:35:55,304 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:35:55,306 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:55,307 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:35:55,309 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:55,309 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:35:55,313 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:35:55,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:35:55,410 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:35:55,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55 WrapperNode [2022-12-14 15:35:55,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:35:55,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:35:55,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:35:55,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:35:55,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,448 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 15:35:55,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:35:55,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:35:55,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:35:55,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:35:55,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:35:55,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:35:55,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:35:55,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:35:55,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (1/1) ... [2022-12-14 15:35:55,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:35:55,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:35:55,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:35:55,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:35:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:35:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:35:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:35:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:35:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:35:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:35:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:35:55,656 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:35:55,657 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:35:55,757 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:35:55,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:35:55,763 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:35:55,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:35:55 BoogieIcfgContainer [2022-12-14 15:35:55,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:35:55,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:35:55,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:35:55,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:35:55,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:35:54" (1/3) ... [2022-12-14 15:35:55,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad974e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:35:55, skipping insertion in model container [2022-12-14 15:35:55,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:35:55" (2/3) ... [2022-12-14 15:35:55,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad974e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:35:55, skipping insertion in model container [2022-12-14 15:35:55,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:35:55" (3/3) ... [2022-12-14 15:35:55,774 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_13_bad.i [2022-12-14 15:35:55,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:35:55,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:35:55,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:35:55,836 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;@1932f449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:35:55,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:35:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:35:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:35:55,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:35:55,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:35:55,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:35:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:35:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-14 15:35:55,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:35:55,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240727608] [2022-12-14 15:35:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:35:55,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:35:55,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:35:55,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:35:55,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 15:35:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:35:55,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:35:55,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:35:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:35:55,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:35:55,995 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:35:55,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240727608] [2022-12-14 15:35:55,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240727608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:35:55,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:35:55,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:35:55,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675063456] [2022-12-14 15:35:55,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:35:56,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:35:56,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:35:56,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:35:56,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:35:56,027 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:35:56,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:35:56,055 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-12-14 15:35:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:35:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 15:35:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:35:56,062 INFO L225 Difference]: With dead ends: 48 [2022-12-14 15:35:56,062 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 15:35:56,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:35:56,066 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 11 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:35:56,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:35:56,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 15:35:56,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 15:35:56,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:35:56,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 15:35:56,091 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-14 15:35:56,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:35:56,091 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 15:35:56,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:35:56,092 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 15:35:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:35:56,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:35:56,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:35:56,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:35:56,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:35:56,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:35:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:35:56,294 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-14 15:35:56,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:35:56,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190592740] [2022-12-14 15:35:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:35:56,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:35:56,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:35:56,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 15:35:56,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 15:35:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:35:56,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:35:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:35:56,413 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 15:35:56,413 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:35:56,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:35:56,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:35:56,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 15:35:56,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:35:56,620 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 15:35:56,623 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:35:56,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:35:56 BoogieIcfgContainer [2022-12-14 15:35:56,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:35:56,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:35:56,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:35:56,641 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:35:56,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:35:55" (3/4) ... [2022-12-14 15:35:56,643 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 15:35:56,676 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:35:56,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:35:56,677 INFO L158 Benchmark]: Toolchain (without parser) took 2008.10ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 44.2MB in the end (delta: -13.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,677 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 46.1MB. Free memory was 25.0MB in the beginning and 25.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:35:56,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.74ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.0MB in the beginning and 34.6MB in the end (delta: -4.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.94ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 31.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,678 INFO L158 Benchmark]: Boogie Preprocessor took 21.00ms. Allocated memory is still 73.4MB. Free memory was 31.6MB in the beginning and 29.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,678 INFO L158 Benchmark]: RCFGBuilder took 295.29ms. Allocated memory is still 73.4MB. Free memory was 29.5MB in the beginning and 35.1MB in the end (delta: -5.6MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,678 INFO L158 Benchmark]: TraceAbstraction took 873.04ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 25.3MB in the end (delta: 9.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,679 INFO L158 Benchmark]: Witness Printer took 34.91ms. Allocated memory is still 73.4MB. Free memory was 25.3MB in the beginning and 44.2MB in the end (delta: -18.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-12-14 15:35:56,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 46.1MB. Free memory was 25.0MB in the beginning and 25.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.74ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 30.0MB in the beginning and 34.6MB in the end (delta: -4.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.94ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 31.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.00ms. Allocated memory is still 73.4MB. Free memory was 31.6MB in the beginning and 29.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 295.29ms. Allocated memory is still 73.4MB. Free memory was 29.5MB in the beginning and 35.1MB in the end (delta: -5.6MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * TraceAbstraction took 873.04ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 25.3MB in the end (delta: 9.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 34.91ms. Allocated memory is still 73.4MB. Free memory was 25.3MB in the beginning and 44.2MB in the end (delta: -18.8MB). Peak memory consumption was 4.3MB. 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_13_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=2, rand()=0, 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] COND TRUE GLOBAL_CONST_FIVE==5 [L1559] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 30 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 15:35:56,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0949b43-b904-4873-ae47-adeba29adb90/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)