./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 20ed64ec 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 287218d656262a35fea12dfac61f3b9a1cd68325 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 11:12:01,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 11:12:01,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 11:12:01,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 11:12:01,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 11:12:01,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 11:12:01,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 11:12:01,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 11:12:01,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 11:12:01,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 11:12:01,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 11:12:01,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 11:12:01,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 11:12:01,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 11:12:01,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 11:12:01,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 11:12:01,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 11:12:01,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 11:12:01,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 11:12:01,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 11:12:01,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 11:12:01,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 11:12:01,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 11:12:01,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 11:12:01,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 11:12:01,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 11:12:01,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 11:12:01,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 11:12:01,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 11:12:01,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 11:12:01,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 11:12:01,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 11:12:01,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 11:12:01,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 11:12:01,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 11:12:01,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 11:12:01,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 11:12:01,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 11:12:01,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 11:12:01,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 11:12:01,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 11:12:01,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-27 11:12:01,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 11:12:01,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 11:12:01,969 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 11:12:01,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 11:12:01,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 11:12:01,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 11:12:01,971 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 11:12:01,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 11:12:01,971 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 11:12:01,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 11:12:01,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 11:12:01,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 11:12:01,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 11:12:01,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 11:12:01,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 11:12:01,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 11:12:01,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 11:12:01,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:12:01,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 11:12:01,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 11:12:01,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 11:12:01,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 11:12:01,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 11:12:01,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 11:12:01,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 11:12:01,975 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287218d656262a35fea12dfac61f3b9a1cd68325 [2021-08-27 11:12:02,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 11:12:02,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 11:12:02,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 11:12:02,244 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 11:12:02,245 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 11:12:02,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2021-08-27 11:12:02,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f705ae4f7/a1cdd97c4c4343768bbe68453b5db507/FLAG561074816 [2021-08-27 11:12:02,621 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 11:12:02,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2021-08-27 11:12:02,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f705ae4f7/a1cdd97c4c4343768bbe68453b5db507/FLAG561074816 [2021-08-27 11:12:02,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f705ae4f7/a1cdd97c4c4343768bbe68453b5db507 [2021-08-27 11:12:02,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 11:12:02,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 11:12:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 11:12:02,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 11:12:02,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 11:12:02,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67463e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02, skipping insertion in model container [2021-08-27 11:12:02,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 11:12:02,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 11:12:02,775 WARN L228 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] [2021-08-27 11:12:02,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:12:02,782 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 11:12:02,793 WARN L228 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] [2021-08-27 11:12:02,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:12:02,842 INFO L208 MainTranslator]: Completed translation [2021-08-27 11:12:02,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02 WrapperNode [2021-08-27 11:12:02,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 11:12:02,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 11:12:02,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 11:12:02,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 11:12:02,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 11:12:02,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 11:12:02,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 11:12:02,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 11:12:02,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 11:12:02,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 11:12:02,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 11:12:02,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 11:12:02,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (1/1) ... [2021-08-27 11:12:02,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:12:02,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:12:02,912 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) [2021-08-27 11:12:02,930 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 [2021-08-27 11:12:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 11:12:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 11:12:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 11:12:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 11:12:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-08-27 11:12:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-08-27 11:12:03,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 11:12:03,125 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-27 11:12:03,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:12:03 BoogieIcfgContainer [2021-08-27 11:12:03,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 11:12:03,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 11:12:03,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 11:12:03,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 11:12:03,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:12:02" (1/3) ... [2021-08-27 11:12:03,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae7418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:12:03, skipping insertion in model container [2021-08-27 11:12:03,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:12:02" (2/3) ... [2021-08-27 11:12:03,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae7418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:12:03, skipping insertion in model container [2021-08-27 11:12:03,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:12:03" (3/3) ... [2021-08-27 11:12:03,132 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02WithOverflowBug.c [2021-08-27 11:12:03,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 11:12:03,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-08-27 11:12:03,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 11:12:03,174 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 11:12:03,174 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-08-27 11:12:03,184 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) [2021-08-27 11:12:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:12:03,186 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:12:03,187 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:12:03,187 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-08-27 11:12:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:12:03,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1849604215, now seen corresponding path program 1 times [2021-08-27 11:12:03,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:12:03,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157608553] [2021-08-27 11:12:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:12:03,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:12:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:12:03,256 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 11:12:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:12:03,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 11:12:03,284 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 11:12:03,284 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,286 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,287 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,288 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:12:03,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 11:12:03,292 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 11:12:03,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:12:03 BoogieIcfgContainer [2021-08-27 11:12:03,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 11:12:03,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 11:12:03,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 11:12:03,306 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 11:12:03,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:12:03" (3/4) ... [2021-08-27 11:12:03,310 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-27 11:12:03,330 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 11:12:03,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 11:12:03,332 INFO L168 Benchmark]: Toolchain (without parser) took 686.90 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 48.3 MB in the beginning and 59.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-08-27 11:12:03,332 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:12:03,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.92 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 51.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-08-27 11:12:03,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 67.1 MB. Free memory was 51.7 MB in the beginning and 50.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:12:03,333 INFO L168 Benchmark]: Boogie Preprocessor took 25.53 ms. Allocated memory is still 67.1 MB. Free memory was 50.4 MB in the beginning and 49.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:12:03,333 INFO L168 Benchmark]: RCFGBuilder took 235.09 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 34.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 11:12:03,334 INFO L168 Benchmark]: TraceAbstraction took 176.95 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 34.4 MB in the beginning and 61.2 MB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:12:03,334 INFO L168 Benchmark]: Witness Printer took 25.09 ms. Allocated memory is still 88.1 MB. Free memory was 60.8 MB in the beginning and 59.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:12:03,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 197.92 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 51.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 67.1 MB. Free memory was 51.7 MB in the beginning and 50.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.53 ms. Allocated memory is still 67.1 MB. Free memory was 50.4 MB in the beginning and 49.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 235.09 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 34.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 176.95 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 34.4 MB in the beginning and 61.2 MB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 25.09 ms. Allocated memory is still 88.1 MB. Free memory was 60.8 MB in the beginning and 59.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 121.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 4.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.6ms SsaConstructionTime, 23.5ms SatisfiabilityAnalysisTime, 0.0ms 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! [2021-08-27 11:12:03,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...