./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark42_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/loop-zilu/benchmark42_conjunctive.i -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 8c31b22cf9178a4af8e1a2477ae4fc9cea74c6162fbc795d23988a77b231ac61 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:20:54,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:20:54,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:20:54,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:20:54,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:20:54,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:20:54,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:20:54,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:20:54,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:20:54,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:20:54,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:20:54,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:20:54,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:20:54,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:20:54,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:20:54,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:20:54,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:20:54,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:20:54,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:20:54,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:20:54,258 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:20:54,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:20:54,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:20:54,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:20:54,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:20:54,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:20:54,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:20:54,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:20:54,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:20:54,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:20:54,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:20:54,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:20:54,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:20:54,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:20:54,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:20:54,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:20:54,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:20:54,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:20:54,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:20:54,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:20:54,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:20:54,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:20:54,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:20:54,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:20:54,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:20:54,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:20:54,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:20:54,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:20:54,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:20:54,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:20:54,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:20:54,310 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:20:54,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:20:54,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:20:54,311 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:20:54,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:20:54,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:20:54,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:20:54,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:20:54,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:20:54,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:20:54,313 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:20:54,313 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:20:54,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:20:54,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:20:54,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:20:54,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:20:54,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:20:54,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:20:54,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:20:54,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:20:54,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:20:54,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:20:54,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:20:54,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:20:54,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:20:54,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c31b22cf9178a4af8e1a2477ae4fc9cea74c6162fbc795d23988a77b231ac61 [2022-07-13 02:20:54,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:20:54,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:20:54,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:20:54,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:20:54,590 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:20:54,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark42_conjunctive.i [2022-07-13 02:20:54,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/986c4b3a3/c52f0a8405b24c77b0eb972ba654cb17/FLAG6120877a2 [2022-07-13 02:20:55,066 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:20:55,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark42_conjunctive.i [2022-07-13 02:20:55,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/986c4b3a3/c52f0a8405b24c77b0eb972ba654cb17/FLAG6120877a2 [2022-07-13 02:20:55,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/986c4b3a3/c52f0a8405b24c77b0eb972ba654cb17 [2022-07-13 02:20:55,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:20:55,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:20:55,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:20:55,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:20:55,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:20:55,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f85e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55, skipping insertion in model container [2022-07-13 02:20:55,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:20:55,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:20:55,652 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/loop-zilu/benchmark42_conjunctive.i[873,886] [2022-07-13 02:20:55,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:20:55,671 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:20:55,688 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/loop-zilu/benchmark42_conjunctive.i[873,886] [2022-07-13 02:20:55,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:20:55,713 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:20:55,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55 WrapperNode [2022-07-13 02:20:55,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:20:55,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:20:55,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:20:55,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:20:55,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,750 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-07-13 02:20:55,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:20:55,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:20:55,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:20:55,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:20:55,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:20:55,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:20:55,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:20:55,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:20:55,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (1/1) ... [2022-07-13 02:20:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:20:55,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:20:55,817 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) [2022-07-13 02:20:55,837 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 [2022-07-13 02:20:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:20:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:20:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:20:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:20:55,906 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:20:55,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:20:56,078 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:20:56,083 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:20:56,083 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:20:56,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:20:56 BoogieIcfgContainer [2022-07-13 02:20:56,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:20:56,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:20:56,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:20:56,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:20:56,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:20:55" (1/3) ... [2022-07-13 02:20:56,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d3e68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:20:56, skipping insertion in model container [2022-07-13 02:20:56,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:20:55" (2/3) ... [2022-07-13 02:20:56,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d3e68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:20:56, skipping insertion in model container [2022-07-13 02:20:56,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:20:56" (3/3) ... [2022-07-13 02:20:56,093 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark42_conjunctive.i [2022-07-13 02:20:56,105 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:20:56,105 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-07-13 02:20:56,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:20:56,147 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@7c229756, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6319fa6f [2022-07-13 02:20:56,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-07-13 02:20:56,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.7727272727272727) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:20:56,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:20:56,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:20:56,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:20:56,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-13 02:20:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:20:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-07-13 02:20:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:20:56,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332009684] [2022-07-13 02:20:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:20:56,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:20:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:20:56,281 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:20:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:20:56,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:20:56,322 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:20:56,325 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-07-13 02:20:56,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-07-13 02:20:56,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-07-13 02:20:56,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-07-13 02:20:56,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-07-13 02:20:56,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-07-13 02:20:56,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-07-13 02:20:56,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-07-13 02:20:56,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-07-13 02:20:56,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-07-13 02:20:56,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-07-13 02:20:56,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-07-13 02:20:56,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:20:56,339 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 02:20:56,344 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:20:56,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:20:56 BoogieIcfgContainer [2022-07-13 02:20:56,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:20:56,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:20:56,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:20:56,369 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:20:56,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:20:56" (3/4) ... [2022-07-13 02:20:56,372 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 02:20:56,407 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:20:56,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:20:56,409 INFO L158 Benchmark]: Toolchain (without parser) took 923.56ms. Allocated memory is still 90.2MB. Free memory was 56.5MB in the beginning and 37.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-07-13 02:20:56,410 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 67.8MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:20:56,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.35ms. Allocated memory is still 90.2MB. Free memory was 56.3MB in the beginning and 67.0MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 02:20:56,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.56ms. Allocated memory is still 90.2MB. Free memory was 67.0MB in the beginning and 65.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:20:56,416 INFO L158 Benchmark]: Boogie Preprocessor took 35.32ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 64.7MB in the end (delta: 956.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:20:56,416 INFO L158 Benchmark]: RCFGBuilder took 298.17ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 53.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 02:20:56,417 INFO L158 Benchmark]: TraceAbstraction took 279.49ms. Allocated memory is still 90.2MB. Free memory was 53.1MB in the beginning and 39.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 02:20:56,417 INFO L158 Benchmark]: Witness Printer took 38.81ms. Allocated memory is still 90.2MB. Free memory was 39.1MB in the beginning and 37.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:20:56,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 67.8MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.35ms. Allocated memory is still 90.2MB. Free memory was 56.3MB in the beginning and 67.0MB in the end (delta: -10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.56ms. Allocated memory is still 90.2MB. Free memory was 67.0MB in the beginning and 65.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.32ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 64.7MB in the end (delta: 956.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.17ms. Allocated memory is still 90.2MB. Free memory was 64.7MB in the beginning and 53.4MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 279.49ms. Allocated memory is still 90.2MB. Free memory was 53.1MB in the beginning and 39.1MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 38.81ms. Allocated memory is still 90.2MB. Free memory was 39.1MB in the beginning and 37.6MB in the end (delta: 1.5MB). 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 - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] int z = __VERIFIER_nondet_int(); [L23] x == y && x >= 0 && x+y+z==0 VAL [x=1073741824, x == y && x >= 0 && x+y+z==0=1, y=1073741824, z=0] [L23] x+y VAL [x=1073741824, x == y && x >= 0 && x+y+z==0=1, y=1073741824, z=0] - 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: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: 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 1 procedures, 35 locations, 12 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=35occurred 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, 4 NumberOfCodeBlocks, 4 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! [2022-07-13 02:20:56,463 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)