./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/GCD2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/termination-restricted-15/GCD2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 35227298135ad932045d20354d3c27230a951768ba1221004cc62379288111ba --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:48:41,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:48:41,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:48:41,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:48:41,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:48:41,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:48:41,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:48:41,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:48:41,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:48:41,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:48:41,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:48:41,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:48:41,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:48:41,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:48:41,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:48:41,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:48:41,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:48:41,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:48:41,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:48:41,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:48:41,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:48:41,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:48:41,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:48:41,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:48:41,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:48:41,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:48:41,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:48:41,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:48:41,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:48:41,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:48:41,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:48:41,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:48:41,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:48:41,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:48:41,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:48:41,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:48:41,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:48:41,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:48:41,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:48:41,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:48:41,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:48:41,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:48:41,359 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:48:41,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:48:41,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:48:41,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:48:41,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:48:41,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:48:41,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:48:41,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:48:41,361 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:48:41,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:48:41,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:48:41,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:48:41,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:48:41,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:48:41,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:48:41,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:48:41,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:48:41,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:48:41,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:48:41,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:48:41,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:48:41,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:48:41,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:48:41,364 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:48:41,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:48:41,365 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:48:41,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:48:41,365 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:48:41,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35227298135ad932045d20354d3c27230a951768ba1221004cc62379288111ba [2023-02-18 23:48:41,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:48:41,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:48:41,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:48:41,582 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:48:41,582 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:48:41,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD2.c [2023-02-18 23:48:42,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:48:42,783 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:48:42,783 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD2.c [2023-02-18 23:48:42,787 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/493208b41/2117a87b46cd4821b45cbd8ca85a121e/FLAGb8cbca389 [2023-02-18 23:48:42,800 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/493208b41/2117a87b46cd4821b45cbd8ca85a121e [2023-02-18 23:48:42,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:48:42,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:48:42,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:48:42,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:48:42,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:48:42,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ffd080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42, skipping insertion in model container [2023-02-18 23:48:42,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:48:42,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:48:42,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:48:42,922 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:48:42,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:48:42,941 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:48:42,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42 WrapperNode [2023-02-18 23:48:42,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:48:42,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:48:42,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:48:42,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:48:42,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,962 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-02-18 23:48:42,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:48:42,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:48:42,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:48:42,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:48:42,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,974 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:48:42,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:48:42,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:48:42,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:48:42,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (1/1) ... [2023-02-18 23:48:42,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:48:42,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:48:42,998 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) [2023-02-18 23:48:43,000 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 [2023-02-18 23:48:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:48:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:48:43,067 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:48:43,068 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:48:43,125 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:48:43,136 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:48:43,137 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 23:48:43,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:48:43 BoogieIcfgContainer [2023-02-18 23:48:43,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:48:43,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:48:43,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:48:43,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:48:43,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:48:42" (1/3) ... [2023-02-18 23:48:43,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbf8c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:48:43, skipping insertion in model container [2023-02-18 23:48:43,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:42" (2/3) ... [2023-02-18 23:48:43,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbf8c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:48:43, skipping insertion in model container [2023-02-18 23:48:43,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:48:43" (3/3) ... [2023-02-18 23:48:43,179 INFO L112 eAbstractionObserver]: Analyzing ICFG GCD2.c [2023-02-18 23:48:43,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:48:43,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-18 23:48:43,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:48:43,242 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;@494dd181, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:48:43,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-18 23:48:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 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) [2023-02-18 23:48:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:48:43,251 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:43,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:48:43,252 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-18 23:48:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:43,258 INFO L85 PathProgramCache]: Analyzing trace with hash 889694601, now seen corresponding path program 1 times [2023-02-18 23:48:43,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:43,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931312476] [2023-02-18 23:48:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:43,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:43,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:43,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931312476] [2023-02-18 23:48:43,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931312476] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:43,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:43,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:48:43,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744756536] [2023-02-18 23:48:43,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:43,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:48:43,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:43,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:48:43,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:43,432 INFO L87 Difference]: Start difference. First operand has 14 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 13 states have internal predecessors, (18), 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, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-18 23:48:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:43,455 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2023-02-18 23:48:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:48:43,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-18 23:48:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:43,462 INFO L225 Difference]: With dead ends: 25 [2023-02-18 23:48:43,462 INFO L226 Difference]: Without dead ends: 9 [2023-02-18 23:48:43,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:43,466 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:43,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:43,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-18 23:48:43,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-18 23:48:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2023-02-18 23:48:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-02-18 23:48:43,487 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 6 [2023-02-18 23:48:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:43,487 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-02-18 23:48:43,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-18 23:48:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-02-18 23:48:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:48:43,488 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:43,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:43,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:48:43,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-18 23:48:43,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:43,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1810728914, now seen corresponding path program 1 times [2023-02-18 23:48:43,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:43,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495369078] [2023-02-18 23:48:43,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:43,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:43,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495369078] [2023-02-18 23:48:43,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495369078] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:43,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:43,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:48:43,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932981321] [2023-02-18 23:48:43,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:43,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:48:43,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:43,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:48:43,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:48:43,527 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-02-18 23:48:43,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:43,558 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2023-02-18 23:48:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:48:43,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-02-18 23:48:43,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:43,560 INFO L225 Difference]: With dead ends: 22 [2023-02-18 23:48:43,560 INFO L226 Difference]: Without dead ends: 21 [2023-02-18 23:48:43,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:48:43,561 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:43,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:43,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-18 23:48:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2023-02-18 23:48:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2023-02-18 23:48:43,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2023-02-18 23:48:43,578 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 7 [2023-02-18 23:48:43,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:43,578 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-02-18 23:48:43,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-02-18 23:48:43,579 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-02-18 23:48:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:48:43,579 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:43,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:43,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:48:43,580 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-18 23:48:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1364106105, now seen corresponding path program 1 times [2023-02-18 23:48:43,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:43,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819550898] [2023-02-18 23:48:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:43,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:43,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819550898] [2023-02-18 23:48:43,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819550898] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:48:43,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023316991] [2023-02-18 23:48:43,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:43,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:48:43,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:48:43,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:48:43,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:48:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:43,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:48:43,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:48:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:43,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:48:43,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023316991] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:43,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:48:43,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-02-18 23:48:43,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037528964] [2023-02-18 23:48:43,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:43,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:48:43,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:48:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-02-18 23:48:43,760 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-02-18 23:48:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:43,799 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2023-02-18 23:48:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:48:43,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2023-02-18 23:48:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:43,800 INFO L225 Difference]: With dead ends: 20 [2023-02-18 23:48:43,800 INFO L226 Difference]: Without dead ends: 19 [2023-02-18 23:48:43,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-02-18 23:48:43,802 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:43,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 11 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:43,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-18 23:48:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2023-02-18 23:48:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2023-02-18 23:48:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2023-02-18 23:48:43,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 10 [2023-02-18 23:48:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:43,806 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-02-18 23:48:43,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-02-18 23:48:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-02-18 23:48:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:48:43,806 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:43,806 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:43,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:48:44,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:48:44,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-18 23:48:44,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:44,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1369723418, now seen corresponding path program 1 times [2023-02-18 23:48:44,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:44,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267341586] [2023-02-18 23:48:44,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:44,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:44,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:44,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267341586] [2023-02-18 23:48:44,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267341586] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:48:44,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55390113] [2023-02-18 23:48:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:44,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:48:44,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:48:44,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:48:44,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:48:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:44,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:48:44,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:48:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:44,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:48:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:44,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55390113] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:48:44,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:48:44,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-02-18 23:48:44,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800762751] [2023-02-18 23:48:44,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:48:44,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 23:48:44,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:44,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 23:48:44,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-02-18 23:48:44,222 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 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) [2023-02-18 23:48:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:44,346 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2023-02-18 23:48:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 23:48:44,346 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 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 10 [2023-02-18 23:48:44,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:44,347 INFO L225 Difference]: With dead ends: 32 [2023-02-18 23:48:44,347 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:48:44,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2023-02-18 23:48:44,350 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:44,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 11 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:48:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:48:44,351 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) [2023-02-18 23:48:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:48:44,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-02-18 23:48:44,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:44,351 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:48:44,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 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) [2023-02-18 23:48:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:48:44,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:48:44,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-02-18 23:48:44,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-02-18 23:48:44,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 23:48:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-18 23:48:44,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:48:44,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-02-18 23:48:44,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:48:44,570 INFO L895 garLoopResultBuilder]: At program point L21-2(lines 21 23) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~xtmp~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse4 (>= |ULTIMATE.start_main_~y~0#1| 0))) (let ((.cse3 (or (and .cse2 (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~xtmp~0#1|) 2147483647) .cse4) (and .cse0 .cse2 .cse4 (<= |ULTIMATE.start_main_~xtmp~0#1| (+ |ULTIMATE.start_main_~y~0#1| 2147483647))))) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse5 (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~tmp~0#1|) (+ |ULTIMATE.start_main_~xtmp~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse6 (<= |ULTIMATE.start_main_~tmp~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse4 .cse5 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 (<= |ULTIMATE.start_main_~xtmp~0#1| |ULTIMATE.start_main_~y~0#1|))))) [2023-02-18 23:48:44,570 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 17 24) no Hoare annotation was computed. [2023-02-18 23:48:44,570 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 24) no Hoare annotation was computed. [2023-02-18 23:48:44,570 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 28) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_main_~xtmp~0#1| (+ |ULTIMATE.start_main_~y~0#1| 2147483647))) (.cse3 (<= |ULTIMATE.start_main_~tmp~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~xtmp~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~tmp~0#1|) (+ |ULTIMATE.start_main_~xtmp~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~tmp~0#1| |ULTIMATE.start_main_~xtmp~0#1|) .cse2 .cse3 .cse4) (and .cse0 .cse1) (and .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 13 28) no Hoare annotation was computed. [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:48:44,571 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 31) the Hoare annotation is: true [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-02-18 23:48:44,571 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-18 23:48:44,573 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-18 23:48:44,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:48:44,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:48:44 BoogieIcfgContainer [2023-02-18 23:48:44,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:48:44,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:48:44,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:48:44,600 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:48:44,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:48:43" (3/4) ... [2023-02-18 23:48:44,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:48:44,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 23:48:44,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 23:48:44,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:48:44,641 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:48:44,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:48:44,642 INFO L158 Benchmark]: Toolchain (without parser) took 1838.89ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 97.2MB in the end (delta: -11.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:48:44,642 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:48:44,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 136.72ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 76.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 23:48:44,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.21ms. Allocated memory is still 132.1MB. Free memory was 76.7MB in the beginning and 75.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:48:44,643 INFO L158 Benchmark]: Boogie Preprocessor took 11.77ms. Allocated memory is still 132.1MB. Free memory was 75.3MB in the beginning and 73.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:48:44,643 INFO L158 Benchmark]: RCFGBuilder took 162.81ms. Allocated memory is still 132.1MB. Free memory was 73.9MB in the beginning and 106.1MB in the end (delta: -32.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-18 23:48:44,643 INFO L158 Benchmark]: TraceAbstraction took 1434.01ms. Allocated memory is still 132.1MB. Free memory was 105.2MB in the beginning and 99.6MB in the end (delta: 5.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-02-18 23:48:44,643 INFO L158 Benchmark]: Witness Printer took 41.04ms. Allocated memory is still 132.1MB. Free memory was 99.6MB in the beginning and 97.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:48:44,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 136.72ms. Allocated memory is still 132.1MB. Free memory was 85.8MB in the beginning and 76.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.21ms. Allocated memory is still 132.1MB. Free memory was 76.7MB in the beginning and 75.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.77ms. Allocated memory is still 132.1MB. Free memory was 75.3MB in the beginning and 73.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 162.81ms. Allocated memory is still 132.1MB. Free memory was 73.9MB in the beginning and 106.1MB in the end (delta: -32.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1434.01ms. Allocated memory is still 132.1MB. Free memory was 105.2MB in the beginning and 99.6MB in the end (delta: 5.6MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 41.04ms. Allocated memory is still 132.1MB. Free memory was 99.6MB in the beginning and 97.2MB in the end (delta: 2.4MB). 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 21 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 222 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 SizeOfPredicates, 5 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 4/12 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 2 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((((((((y <= 2147483647 && x <= 2147483647) && x + tmp <= xtmp + y) && x <= y) && tmp <= xtmp) && xtmp <= y + 2147483647) && tmp <= 2147483647) && xtmp <= y) || (y <= 2147483647 && x <= 2147483647)) || ((((y <= 2147483647 && x <= 2147483647) && xtmp <= y + 2147483647) && tmp <= 2147483647) && xtmp <= y) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((((((xtmp <= 2147483647 && y <= 2147483647) && x <= 2147483647) && (((x <= 2147483647 && y + xtmp <= 2147483647) && y >= 0) || (((xtmp <= 2147483647 && x <= 2147483647) && y >= 0) && xtmp <= y + 2147483647))) && y >= 0) && x + tmp <= xtmp + y) && tmp <= 2147483647) || ((((xtmp <= 2147483647 && y <= 2147483647) && x <= 2147483647) && y >= 0) && tmp <= 2147483647)) || (((((xtmp <= 2147483647 && y <= 2147483647) && x <= 2147483647) && (((x <= 2147483647 && y + xtmp <= 2147483647) && y >= 0) || (((xtmp <= 2147483647 && x <= 2147483647) && y >= 0) && xtmp <= y + 2147483647))) && y >= 0) && tmp <= 2147483647)) || (((((xtmp <= 2147483647 && y <= 2147483647) && x <= 2147483647) && y >= 0) && x + tmp <= xtmp + y) && tmp <= 2147483647)) || (((((((xtmp <= 2147483647 && y <= 2147483647) && x <= 2147483647) && y >= 0) && x + tmp <= xtmp + y) && x <= y) && tmp <= 2147483647) && xtmp <= y) RESULT: Ultimate proved your program to be correct! [2023-02-18 23:48:44,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE