./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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/UpAndDown.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 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:06:30,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:06:30,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:06:30,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:06:30,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:06:30,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:06:30,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:06:30,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:06:30,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:06:30,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:06:30,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:06:30,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:06:30,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:06:30,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:06:30,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:06:30,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:06:30,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:06:30,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:06:30,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:06:30,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:06:30,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:06:30,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:06:30,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:06:30,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:06:30,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:06:30,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:06:30,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:06:30,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:06:30,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:06:30,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:06:30,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:06:30,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:06:30,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:06:30,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:06:30,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:06:30,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:06:30,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:06:30,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:06:30,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:06:30,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:06:30,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:06:30,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 14:06:30,544 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:06:30,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:06:30,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:06:30,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:06:30,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 14:06:30,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 14:06:30,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:06:30,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:06:30,546 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:06:30,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:06:30,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:06:30,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:06:30,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:06:30,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 14:06:30,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 14:06:30,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 14:06:30,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:06:30,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:06:30,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 14:06:30,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 14:06:30,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:06:30,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 14:06:30,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 14:06:30,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 14:06:30,550 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 14:06:30,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 14:06:30,550 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 14:06:30,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2023-02-15 14:06:30,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:06:30,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:06:30,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:06:30,775 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:06:30,776 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:06:30,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2023-02-15 14:06:31,826 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:06:31,931 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:06:31,932 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2023-02-15 14:06:31,935 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65da3896f/113ba320acdf4d5ea09037e32b0f1693/FLAGba127a376 [2023-02-15 14:06:31,945 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65da3896f/113ba320acdf4d5ea09037e32b0f1693 [2023-02-15 14:06:31,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:06:31,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:06:31,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:06:31,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:06:31,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:06:31,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:06:31" (1/1) ... [2023-02-15 14:06:31,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd39c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:31, skipping insertion in model container [2023-02-15 14:06:31,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:06:31" (1/1) ... [2023-02-15 14:06:31,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:06:31,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:06:32,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:06:32,062 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:06:32,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:06:32,078 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:06:32,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32 WrapperNode [2023-02-15 14:06:32,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:06:32,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:06:32,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:06:32,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:06:32,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,096 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-15 14:06:32,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:06:32,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:06:32,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:06:32,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:06:32,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,108 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:06:32,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:06:32,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:06:32,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:06:32,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (1/1) ... [2023-02-15 14:06:32,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:06:32,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:32,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 14:06:32,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 14:06:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:06:32,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:06:32,256 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:06:32,257 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:06:32,332 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:06:32,336 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:06:32,336 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 14:06:32,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:06:32 BoogieIcfgContainer [2023-02-15 14:06:32,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:06:32,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 14:06:32,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 14:06:32,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 14:06:32,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:06:31" (1/3) ... [2023-02-15 14:06:32,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156687ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:06:32, skipping insertion in model container [2023-02-15 14:06:32,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:32" (2/3) ... [2023-02-15 14:06:32,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156687ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:06:32, skipping insertion in model container [2023-02-15 14:06:32,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:06:32" (3/3) ... [2023-02-15 14:06:32,343 INFO L112 eAbstractionObserver]: Analyzing ICFG UpAndDown.c [2023-02-15 14:06:32,354 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 14:06:32,354 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 14:06:32,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 14:06:32,400 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;@2ba5bae6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 14:06:32,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 14:06:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:06:32,407 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:32,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:32,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 14:06:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:32,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724269, now seen corresponding path program 1 times [2023-02-15 14:06:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:32,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816150181] [2023-02-15 14:06:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:32,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816150181] [2023-02-15 14:06:32,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816150181] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:32,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:32,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:06:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116814119] [2023-02-15 14:06:32,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:32,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:32,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:32,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:32,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:32,569 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 states have internal predecessors, (22), 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 2.3333333333333335) internal successors, (7), 3 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) [2023-02-15 14:06:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:32,605 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2023-02-15 14:06:32,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:32,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2023-02-15 14:06:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:32,612 INFO L225 Difference]: With dead ends: 42 [2023-02-15 14:06:32,612 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 14:06:32,615 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 [2023-02-15 14:06:32,619 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:32,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 14:06:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 14:06:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2023-02-15 14:06:32,643 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2023-02-15 14:06:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:32,643 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-02-15 14:06:32,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2023-02-15 14:06:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-02-15 14:06:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:06:32,644 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:32,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:32,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 14:06:32,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 14:06:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:32,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724077, now seen corresponding path program 1 times [2023-02-15 14:06:32,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:32,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460663403] [2023-02-15 14:06:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:32,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:32,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:32,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460663403] [2023-02-15 14:06:32,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460663403] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:32,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:32,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:32,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18350078] [2023-02-15 14:06:32,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:32,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:32,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:32,683 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-02-15 14:06:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:32,718 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2023-02-15 14:06:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-02-15 14:06:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:32,719 INFO L225 Difference]: With dead ends: 19 [2023-02-15 14:06:32,719 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 14:06:32,719 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 [2023-02-15 14:06:32,720 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:32,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:32,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 14:06:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-02-15 14:06:32,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2023-02-15 14:06:32,736 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 7 [2023-02-15 14:06:32,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:32,737 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-15 14:06:32,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-02-15 14:06:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-02-15 14:06:32,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:06:32,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:32,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:32,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 14:06:32,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 14:06:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:32,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1810726191, now seen corresponding path program 1 times [2023-02-15 14:06:32,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:32,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088060201] [2023-02-15 14:06:32,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:32,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:32,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:32,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088060201] [2023-02-15 14:06:32,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088060201] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:32,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:32,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738533316] [2023-02-15 14:06:32,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:32,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:32,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:32,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:32,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:32,762 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-02-15 14:06:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:32,784 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2023-02-15 14:06:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:32,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-02-15 14:06:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:32,785 INFO L225 Difference]: With dead ends: 17 [2023-02-15 14:06:32,785 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 14:06:32,785 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 [2023-02-15 14:06:32,786 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:32,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:32,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 14:06:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 14:06:32,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-02-15 14:06:32,789 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 21 transitions. Word has length 7 [2023-02-15 14:06:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:32,790 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-02-15 14:06:32,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-02-15 14:06:32,790 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2023-02-15 14:06:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:06:32,790 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:32,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:32,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 14:06:32,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 14:06:32,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:32,792 INFO L85 PathProgramCache]: Analyzing trace with hash 297871599, now seen corresponding path program 1 times [2023-02-15 14:06:32,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:32,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146064506] [2023-02-15 14:06:32,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:32,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:32,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:32,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146064506] [2023-02-15 14:06:32,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146064506] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:32,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:32,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:32,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437247610] [2023-02-15 14:06:32,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:32,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:32,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:32,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:32,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:32,818 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-15 14:06:32,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:32,832 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2023-02-15 14:06:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:32,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) Word has length 8 [2023-02-15 14:06:32,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:32,832 INFO L225 Difference]: With dead ends: 17 [2023-02-15 14:06:32,833 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 14:06:32,833 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 [2023-02-15 14:06:32,834 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:32,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:32,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 14:06:32,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 14:06:32,835 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) [2023-02-15 14:06:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 14:06:32,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-02-15 14:06:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:32,836 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:06:32,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-15 14:06:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:06:32,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 14:06:32,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-15 14:06:32,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-15 14:06:32,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-15 14:06:32,839 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-15 14:06:32,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:06:32,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 14:06:32,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point L15-1(lines 11 23) no Hoare annotation was computed. [2023-02-15 14:06:32,846 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 14:06:32,847 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 23) no Hoare annotation was computed. [2023-02-15 14:06:32,847 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 26) the Hoare annotation is: true [2023-02-15 14:06:32,847 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 14:06:32,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-15 14:06:32,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-15 14:06:32,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 14:06:32,848 INFO L902 garLoopResultBuilder]: At program point L18-1(lines 11 23) the Hoare annotation is: true [2023-02-15 14:06:32,848 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2023-02-15 14:06:32,848 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 23) no Hoare annotation was computed. [2023-02-15 14:06:32,850 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-15 14:06:32,851 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 14:06:32,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:06:32 BoogieIcfgContainer [2023-02-15 14:06:32,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 14:06:32,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:06:32,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:06:32,858 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:06:32,858 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:06:32" (3/4) ... [2023-02-15 14:06:32,860 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 14:06:32,867 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 14:06:32,867 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 14:06:32,867 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 14:06:32,893 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 14:06:32,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:06:32,893 INFO L158 Benchmark]: Toolchain (without parser) took 945.82ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 74.7MB in the beginning and 83.6MB in the end (delta: -8.9MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-02-15 14:06:32,894 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:06:32,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 131.32ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 65.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 14:06:32,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.70ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 64.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:06:32,895 INFO L158 Benchmark]: Boogie Preprocessor took 10.98ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 63.2MB in the end (delta: 977.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:06:32,895 INFO L158 Benchmark]: RCFGBuilder took 227.54ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 62.8MB in the beginning and 122.4MB in the end (delta: -59.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-02-15 14:06:32,895 INFO L158 Benchmark]: TraceAbstraction took 518.44ms. Allocated memory is still 153.1MB. Free memory was 122.3MB in the beginning and 85.7MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-02-15 14:06:32,895 INFO L158 Benchmark]: Witness Printer took 35.17ms. Allocated memory is still 153.1MB. Free memory was 85.7MB in the beginning and 83.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:06:32,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 131.32ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 65.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.70ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 64.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.98ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 63.2MB in the end (delta: 977.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 227.54ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 62.8MB in the beginning and 122.4MB in the end (delta: -59.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 518.44ms. Allocated memory is still 153.1MB. Free memory was 122.3MB in the beginning and 85.7MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 35.17ms. Allocated memory is still 153.1MB. Free memory was 85.7MB in the beginning and 83.6MB 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 43 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-15 14:06:32,924 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