./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 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/benchmark31_disjunctive.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 f434a7a72e145f5b7d63ebd7248b3805be316e991521bd769a7077695becd351 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:59:07,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:59:07,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:59:07,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:59:07,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:59:07,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:59:07,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:59:07,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:59:07,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:59:07,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:59:07,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:59:07,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:59:07,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:59:07,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:59:07,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:59:07,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:59:07,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:59:07,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:59:07,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:59:07,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:59:07,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:59:07,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:59:07,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:59:07,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:59:07,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:59:07,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:59:07,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:59:07,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:59:07,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:59:07,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:59:07,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:59:07,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:59:07,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:59:07,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:59:07,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:59:07,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:59:07,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:59:07,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:59:07,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:59:07,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:59:07,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:59:07,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 01:59:07,462 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:59:07,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:59:07,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:59:07,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:59:07,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:59:07,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:59:07,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:59:07,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:59:07,465 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:59:07,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:59:07,466 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:59:07,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:59:07,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:59:07,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:59:07,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:59:07,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 01:59:07,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:59:07,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 01:59:07,467 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 01:59:07,468 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:59:07,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 01:59:07,468 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:59:07,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 01:59:07,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:59:07,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:59:07,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:59:07,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:59:07,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:59:07,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:59:07,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 01:59:07,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 01:59:07,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 01:59:07,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:59:07,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 01:59:07,471 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:59:07,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:59:07,471 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:59:07,472 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f434a7a72e145f5b7d63ebd7248b3805be316e991521bd769a7077695becd351 [2023-02-15 01:59:07,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:59:07,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:59:07,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:59:07,712 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:59:07,712 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:59:07,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i [2023-02-15 01:59:08,795 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:59:08,990 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:59:08,990 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark31_disjunctive.i [2023-02-15 01:59:08,995 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa677295/97a9a5914cfe4957ab2d82f1a4ab2f9c/FLAG2f1ca2eac [2023-02-15 01:59:09,007 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa677295/97a9a5914cfe4957ab2d82f1a4ab2f9c [2023-02-15 01:59:09,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:59:09,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:59:09,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:59:09,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:59:09,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:59:09,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c98259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09, skipping insertion in model container [2023-02-15 01:59:09,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:59:09,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:59:09,182 WARN L237 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/benchmark31_disjunctive.i[873,886] [2023-02-15 01:59:09,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:59:09,197 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 01:59:09,206 WARN L237 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/benchmark31_disjunctive.i[873,886] [2023-02-15 01:59:09,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:59:09,218 INFO L208 MainTranslator]: Completed translation [2023-02-15 01:59:09,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09 WrapperNode [2023-02-15 01:59:09,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:59:09,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 01:59:09,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 01:59:09,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 01:59:09,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,242 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2023-02-15 01:59:09,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 01:59:09,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 01:59:09,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 01:59:09,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 01:59:09,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,261 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 01:59:09,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 01:59:09,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 01:59:09,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 01:59:09,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (1/1) ... [2023-02-15 01:59:09,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:59:09,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:59:09,290 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) [2023-02-15 01:59:09,302 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 [2023-02-15 01:59:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 01:59:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 01:59:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 01:59:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 01:59:09,372 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 01:59:09,374 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 01:59:09,462 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 01:59:09,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 01:59:09,467 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 01:59:09,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:59:09 BoogieIcfgContainer [2023-02-15 01:59:09,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 01:59:09,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 01:59:09,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 01:59:09,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 01:59:09,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:59:09" (1/3) ... [2023-02-15 01:59:09,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e9b634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:59:09, skipping insertion in model container [2023-02-15 01:59:09,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:09" (2/3) ... [2023-02-15 01:59:09,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e9b634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:59:09, skipping insertion in model container [2023-02-15 01:59:09,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:59:09" (3/3) ... [2023-02-15 01:59:09,476 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark31_disjunctive.i [2023-02-15 01:59:09,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 01:59:09,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 01:59:09,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 01:59:09,546 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e203b16, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 01:59:09,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 01:59:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 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) [2023-02-15 01:59:09,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 01:59:09,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:59:09,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 01:59:09,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:59:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:59:09,576 INFO L85 PathProgramCache]: Analyzing trace with hash 889575309, now seen corresponding path program 1 times [2023-02-15 01:59:09,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:59:09,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300031365] [2023-02-15 01:59:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:59:09,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:59:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 01:59:09,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 01:59:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 01:59:09,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 01:59:09,766 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 01:59:09,767 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-15 01:59:09,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-15 01:59:09,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-15 01:59:09,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-15 01:59:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 01:59:09,775 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-02-15 01:59:09,778 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 01:59:09,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:59:09 BoogieIcfgContainer [2023-02-15 01:59:09,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 01:59:09,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 01:59:09,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 01:59:09,800 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 01:59:09,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:59:09" (3/4) ... [2023-02-15 01:59:09,803 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 01:59:09,843 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 01:59:09,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 01:59:09,852 INFO L158 Benchmark]: Toolchain (without parser) took 836.87ms. Allocated memory is still 132.1MB. Free memory was 95.5MB in the beginning and 74.5MB in the end (delta: 21.0MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-02-15 01:59:09,854 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 01:59:09,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.19ms. Allocated memory is still 132.1MB. Free memory was 95.1MB in the beginning and 102.9MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 01:59:09,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.01ms. Allocated memory is still 132.1MB. Free memory was 102.9MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 01:59:09,857 INFO L158 Benchmark]: Boogie Preprocessor took 19.79ms. Allocated memory is still 132.1MB. Free memory was 101.3MB in the beginning and 100.6MB in the end (delta: 662.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 01:59:09,858 INFO L158 Benchmark]: RCFGBuilder took 205.61ms. Allocated memory is still 132.1MB. Free memory was 100.2MB in the beginning and 90.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 01:59:09,858 INFO L158 Benchmark]: TraceAbstraction took 326.02ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 76.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-15 01:59:09,860 INFO L158 Benchmark]: Witness Printer took 49.03ms. Allocated memory is still 132.1MB. Free memory was 76.1MB in the beginning and 74.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 01:59:09,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.19ms. Allocated memory is still 132.1MB. Free memory was 95.1MB in the beginning and 102.9MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.01ms. Allocated memory is still 132.1MB. Free memory was 102.9MB in the beginning and 101.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.79ms. Allocated memory is still 132.1MB. Free memory was 101.3MB in the beginning and 100.6MB in the end (delta: 662.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 205.61ms. Allocated memory is still 132.1MB. Free memory was 100.2MB in the beginning and 90.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 326.02ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 76.1MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 49.03ms. Allocated memory is still 132.1MB. Free memory was 76.1MB in the beginning and 74.5MB 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: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x < 0)) VAL [x=-1, y=-2147483648] [L23] COND TRUE 1 VAL [x=-1, y=-2147483648] [L24] COND FALSE !(x>=0) VAL [x=-1, y=-2147483648] [L27] x+y VAL [x=-1, y=-2147483648] - 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: 27]: 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, 19 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=19occurred 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, 6 NumberOfCodeBlocks, 6 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! [2023-02-15 01:59:09,884 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)