./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dc17171ab7e1d3edd86dad6d65587aa7dd0f9060f526fa057c22f6fe741258c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:51:15,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:51:15,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:51:15,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:51:15,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:51:15,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:51:15,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:51:15,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:51:15,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:51:15,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:51:15,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:51:15,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:51:15,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:51:15,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:51:15,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:51:15,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:51:15,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:51:15,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:51:15,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:51:15,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:51:15,465 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:51:15,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:51:15,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:51:15,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:51:15,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:51:15,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:51:15,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:51:15,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:51:15,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:51:15,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:51:15,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:51:15,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:51:15,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:51:15,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:51:15,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:51:15,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:51:15,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:51:15,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:51:15,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:51:15,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:51:15,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:51:15,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:51:15,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:51:15,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:51:15,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:51:15,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:51:15,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:51:15,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:51:15,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:51:15,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:51:15,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:51:15,519 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:51:15,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:51:15,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:51:15,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:51:15,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:51:15,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:51:15,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:51:15,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:51:15,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:51:15,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:51:15,522 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:51:15,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:51:15,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:51:15,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:51:15,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:51:15,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:51:15,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:51:15,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:51:15,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:51:15,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:51:15,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:51:15,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:51:15,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:51:15,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:51:15,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:51:15,527 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc17171ab7e1d3edd86dad6d65587aa7dd0f9060f526fa057c22f6fe741258c [2022-07-14 13:51:15,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:51:15,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:51:15,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:51:15,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:51:15,796 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:51:15,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2022-07-14 13:51:15,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b183ef2/a7b5f77c58e64592abce5ab49a813bdb/FLAG74df06989 [2022-07-14 13:51:16,246 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:51:16,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2022-07-14 13:51:16,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b183ef2/a7b5f77c58e64592abce5ab49a813bdb/FLAG74df06989 [2022-07-14 13:51:16,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0b183ef2/a7b5f77c58e64592abce5ab49a813bdb [2022-07-14 13:51:16,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:51:16,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:51:16,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:51:16,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:51:16,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:51:16,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e8e54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16, skipping insertion in model container [2022-07-14 13:51:16,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:51:16,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:51:16,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c[809,822] [2022-07-14 13:51:16,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:51:16,423 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:51:16,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c[809,822] [2022-07-14 13:51:16,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:51:16,443 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:51:16,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16 WrapperNode [2022-07-14 13:51:16,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:51:16,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:51:16,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:51:16,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:51:16,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,469 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2022-07-14 13:51:16,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:51:16,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:51:16,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:51:16,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:51:16,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:51:16,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:51:16,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:51:16,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:51:16,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (1/1) ... [2022-07-14 13:51:16,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:51:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:51:16,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 13:51:16,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 13:51:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:51:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:51:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:51:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:51:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-07-14 13:51:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-07-14 13:51:16,610 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:51:16,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:51:16,774 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:51:16,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:51:16,792 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 13:51:16,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:51:16 BoogieIcfgContainer [2022-07-14 13:51:16,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:51:16,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:51:16,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:51:16,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:51:16,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:51:16" (1/3) ... [2022-07-14 13:51:16,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c63236e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:51:16, skipping insertion in model container [2022-07-14 13:51:16,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:51:16" (2/3) ... [2022-07-14 13:51:16,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c63236e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:51:16, skipping insertion in model container [2022-07-14 13:51:16,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:51:16" (3/3) ... [2022-07-14 13:51:16,801 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02WithOverflowBug.c [2022-07-14 13:51:16,819 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:51:16,819 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-14 13:51:16,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:51:16,894 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@54ab7b53, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4667045 [2022-07-14 13:51:16,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-14 13:51:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 34 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 13:51:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 13:51:16,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:51:16,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:51:16,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:51:16,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:51:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1849604215, now seen corresponding path program 1 times [2022-07-14 13:51:16,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:51:16,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799809141] [2022-07-14 13:51:16,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:51:16,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:51:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 13:51:17,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 13:51:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 13:51:17,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 13:51:17,077 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 13:51:17,078 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-07-14 13:51:17,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-07-14 13:51:17,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-07-14 13:51:17,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-07-14 13:51:17,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-07-14 13:51:17,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-07-14 13:51:17,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-07-14 13:51:17,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-07-14 13:51:17,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-07-14 13:51:17,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-07-14 13:51:17,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:51:17,090 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-14 13:51:17,094 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 13:51:17,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 01:51:17 BoogieIcfgContainer [2022-07-14 13:51:17,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 13:51:17,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 13:51:17,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 13:51:17,120 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 13:51:17,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:51:16" (3/4) ... [2022-07-14 13:51:17,123 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-14 13:51:17,161 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 13:51:17,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 13:51:17,166 INFO L158 Benchmark]: Toolchain (without parser) took 893.53ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 44.8MB in the end (delta: 20.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-07-14 13:51:17,167 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 49.4MB in the beginning and 49.4MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:51:17,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.07ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 73.7MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 13:51:17,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.69ms. Allocated memory is still 96.5MB. Free memory was 73.7MB in the beginning and 72.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:51:17,168 INFO L158 Benchmark]: Boogie Preprocessor took 33.83ms. Allocated memory is still 96.5MB. Free memory was 72.6MB in the beginning and 71.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:51:17,168 INFO L158 Benchmark]: RCFGBuilder took 289.11ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 61.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 13:51:17,169 INFO L158 Benchmark]: TraceAbstraction took 321.95ms. Allocated memory is still 96.5MB. Free memory was 60.6MB in the beginning and 46.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-14 13:51:17,170 INFO L158 Benchmark]: Witness Printer took 41.55ms. Allocated memory is still 96.5MB. Free memory was 46.4MB in the beginning and 44.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:51:17,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 49.4MB in the beginning and 49.4MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.07ms. Allocated memory is still 96.5MB. Free memory was 65.2MB in the beginning and 73.7MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.69ms. Allocated memory is still 96.5MB. Free memory was 73.7MB in the beginning and 72.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.83ms. Allocated memory is still 96.5MB. Free memory was 72.6MB in the beginning and 71.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.11ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 61.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 321.95ms. Allocated memory is still 96.5MB. Free memory was 60.6MB in the beginning and 46.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 41.55ms. Allocated memory is still 96.5MB. Free memory was 46.4MB in the beginning and 44.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] CALL addition(m,n) VAL [\old(m)=2147483647, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L20] m+1 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: 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, 39 locations, 10 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=39occurred 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, 0.0s 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 proved your program to be incorrect! [2022-07-14 13:51:17,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)