./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3dbbec33 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/bitvector-regression/implicitunsignedconversion-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a497a150fdf4a177a0de88b8e6045db4397f0d66c8b216bb0e33d15a7fea1470 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 10:49:49,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 10:49:49,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 10:49:49,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 10:49:49,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 10:49:49,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 10:49:49,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 10:49:49,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 10:49:49,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 10:49:49,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 10:49:49,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 10:49:49,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 10:49:49,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 10:49:49,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 10:49:49,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 10:49:49,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 10:49:49,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 10:49:49,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 10:49:49,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 10:49:49,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 10:49:49,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 10:49:49,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 10:49:49,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 10:49:49,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 10:49:49,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 10:49:49,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 10:49:49,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 10:49:49,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 10:49:49,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 10:49:49,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 10:49:49,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 10:49:49,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 10:49:49,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 10:49:49,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 10:49:49,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 10:49:49,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 10:49:49,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 10:49:49,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 10:49:49,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 10:49:49,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 10:49:49,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 10:49:49,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 10:49:49,460 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 10:49:49,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 10:49:49,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 10:49:49,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 10:49:49,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 10:49:49,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 10:49:49,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 10:49:49,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 10:49:49,474 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 10:49:49,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 10:49:49,475 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 10:49:49,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 10:49:49,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 10:49:49,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 10:49:49,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 10:49:49,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 10:49:49,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 10:49:49,476 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 10:49:49,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 10:49:49,477 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 10:49:49,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 10:49:49,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 10:49:49,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 10:49:49,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 10:49:49,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 10:49:49,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 10:49:49,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 10:49:49,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 10:49:49,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 10:49:49,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 10:49:49,479 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 10:49:49,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 10:49:49,480 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 10:49:49,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 10:49:49,480 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 10:49:49,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a497a150fdf4a177a0de88b8e6045db4397f0d66c8b216bb0e33d15a7fea1470 [2023-02-14 10:49:49,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 10:49:49,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 10:49:49,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 10:49:49,700 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 10:49:49,700 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 10:49:49,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c [2023-02-14 10:49:50,816 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 10:49:50,964 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 10:49:50,964 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c [2023-02-14 10:49:50,969 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bf13f10/f72c015cac1f44a0b38b9542778323d0/FLAGec6fd1acc [2023-02-14 10:49:50,980 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60bf13f10/f72c015cac1f44a0b38b9542778323d0 [2023-02-14 10:49:50,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 10:49:50,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 10:49:50,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 10:49:50,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 10:49:50,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 10:49:50,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 10:49:50" (1/1) ... [2023-02-14 10:49:50,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9ebba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:50, skipping insertion in model container [2023-02-14 10:49:50,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 10:49:50" (1/1) ... [2023-02-14 10:49:51,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 10:49:51,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 10:49:51,171 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/bitvector-regression/implicitunsignedconversion-2.c[417,430] [2023-02-14 10:49:51,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 10:49:51,192 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 10:49:51,207 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/bitvector-regression/implicitunsignedconversion-2.c[417,430] [2023-02-14 10:49:51,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 10:49:51,218 INFO L208 MainTranslator]: Completed translation [2023-02-14 10:49:51,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51 WrapperNode [2023-02-14 10:49:51,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 10:49:51,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 10:49:51,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 10:49:51,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 10:49:51,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,245 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-14 10:49:51,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 10:49:51,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 10:49:51,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 10:49:51,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 10:49:51,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 10:49:51,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 10:49:51,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 10:49:51,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 10:49:51,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (1/1) ... [2023-02-14 10:49:51,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 10:49:51,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 10:49:51,298 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) [2023-02-14 10:49:51,320 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 [2023-02-14 10:49:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 10:49:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 10:49:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 10:49:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 10:49:51,390 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 10:49:51,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 10:49:51,481 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 10:49:51,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 10:49:51,490 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-14 10:49:51,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:49:51 BoogieIcfgContainer [2023-02-14 10:49:51,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 10:49:51,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 10:49:51,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 10:49:51,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 10:49:51,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 10:49:50" (1/3) ... [2023-02-14 10:49:51,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de98297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 10:49:51, skipping insertion in model container [2023-02-14 10:49:51,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 10:49:51" (2/3) ... [2023-02-14 10:49:51,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de98297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 10:49:51, skipping insertion in model container [2023-02-14 10:49:51,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:49:51" (3/3) ... [2023-02-14 10:49:51,501 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-2.c [2023-02-14 10:49:51,517 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 10:49:51,517 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 10:49:51,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 10:49:51,577 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;@80ed8de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 10:49:51,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 10:49:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-02-14 10:49:51,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-14 10:49:51,588 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 10:49:51,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-14 10:49:51,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 10:49:51,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 10:49:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2023-02-14 10:49:51,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 10:49:51,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861001270] [2023-02-14 10:49:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 10:49:51,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 10:49:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 10:49:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 10:49:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 10:49:51,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861001270] [2023-02-14 10:49:51,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861001270] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 10:49:51,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 10:49:51,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 10:49:51,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102988252] [2023-02-14 10:49:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 10:49:51,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 10:49:51,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 10:49:51,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 10:49:51,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 10:49:51,958 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-14 10:49:51,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 10:49:51,981 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2023-02-14 10:49:51,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 10:49:51,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2023-02-14 10:49:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 10:49:51,991 INFO L225 Difference]: With dead ends: 11 [2023-02-14 10:49:51,991 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 10:49:51,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 10:49:51,998 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 10:49:51,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 10:49:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 10:49:52,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 10:49:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-14 10:49:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 10:49:52,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2023-02-14 10:49:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 10:49:52,017 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 10:49:52,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-14 10:49:52,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 10:49:52,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 10:49:52,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-14 10:49:52,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 10:49:52,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-14 10:49:52,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-14 10:49:52,037 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-14 10:49:52,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-14 10:49:52,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-02-14 10:49:52,038 INFO L895 garLoopResultBuilder]: At program point main_ERROR#1(lines 5 16) the Hoare annotation is: false [2023-02-14 10:49:52,039 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-14 10:49:52,039 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2023-02-14 10:49:52,039 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 16) the Hoare annotation is: (and (= |ULTIMATE.start_main_~plus_one~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~minus_one~0#1| 1)) (not (<= (div |ULTIMATE.start_main_~plus_one~0#1| 4294967296) (div |ULTIMATE.start_main_~minus_one~0#1| 4294967296)))) [2023-02-14 10:49:52,042 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-02-14 10:49:52,045 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 10:49:52,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 10:49:52 BoogieIcfgContainer [2023-02-14 10:49:52,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 10:49:52,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 10:49:52,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 10:49:52,059 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 10:49:52,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 10:49:51" (3/4) ... [2023-02-14 10:49:52,069 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 10:49:52,077 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-14 10:49:52,077 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-14 10:49:52,078 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 10:49:52,078 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-14 10:49:52,119 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 10:49:52,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 10:49:52,121 INFO L158 Benchmark]: Toolchain (without parser) took 1131.51ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 86.3MB in the beginning and 135.2MB in the end (delta: -48.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 10:49:52,122 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 99.4MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 10:49:52,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.91ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 76.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 10:49:52,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.21ms. Allocated memory is still 130.0MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 10:49:52,125 INFO L158 Benchmark]: Boogie Preprocessor took 17.96ms. Allocated memory is still 130.0MB. Free memory was 75.3MB in the beginning and 74.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 10:49:52,125 INFO L158 Benchmark]: RCFGBuilder took 227.66ms. Allocated memory is still 130.0MB. Free memory was 74.2MB in the beginning and 65.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 10:49:52,126 INFO L158 Benchmark]: TraceAbstraction took 562.76ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 65.4MB in the beginning and 137.3MB in the end (delta: -71.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 10:49:52,127 INFO L158 Benchmark]: Witness Printer took 61.30ms. Allocated memory is still 174.1MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 10:49:52,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 99.4MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.91ms. Allocated memory is still 130.0MB. Free memory was 86.3MB in the beginning and 76.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.21ms. Allocated memory is still 130.0MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.96ms. Allocated memory is still 130.0MB. Free memory was 75.3MB in the beginning and 74.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 227.66ms. Allocated memory is still 130.0MB. Free memory was 74.2MB in the beginning and 65.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 562.76ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 65.4MB in the beginning and 137.3MB in the end (delta: -71.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.30ms. Allocated memory is still 174.1MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (plus_one == 1 && 0 <= minus_one + 1) && !(plus_one / 4294967296 <= minus_one / 4294967296) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-02-14 10:49:52,157 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 Result: TRUE