./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.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 ca1afc44f63014e29f4d580a04a159d6262ad0282ff2401b2251eaa1ef4b4115 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:05:19,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:05:19,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:05:19,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:05:19,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:05:19,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:05:19,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:05:19,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:05:19,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:05:19,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:05:19,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:05:19,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:05:19,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:05:19,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:05:19,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:05:19,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:05:19,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:05:19,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:05:19,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:05:20,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:05:20,005 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:05:20,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:05:20,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:05:20,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:05:20,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:05:20,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:05:20,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:05:20,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:05:20,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:05:20,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:05:20,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:05:20,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:05:20,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:05:20,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:05:20,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:05:20,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:05:20,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:05:20,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:05:20,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:05:20,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:05:20,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:05:20,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:05:20,026 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-13 02:05:20,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:05:20,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:05:20,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:05:20,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:05:20,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:05:20,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:05:20,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:05:20,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:05:20,047 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:05:20,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:05:20,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:05:20,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:05:20,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:05:20,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:05:20,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:05:20,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:05:20,049 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:05:20,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:05:20,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:05:20,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:05:20,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:05:20,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:05:20,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:05:20,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:05:20,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:05:20,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:05:20,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:05:20,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:05:20,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:05:20,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:05:20,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca1afc44f63014e29f4d580a04a159d6262ad0282ff2401b2251eaa1ef4b4115 [2022-07-13 02:05:20,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:05:20,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:05:20,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:05:20,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:05:20,334 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:05:20,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.c [2022-07-13 02:05:20,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d04932e3/22cca2d21a30419c98834c0a97f0f375/FLAG009d7a1c7 [2022-07-13 02:05:20,751 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:05:20,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-VMCAI2004-Ex2.c [2022-07-13 02:05:20,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d04932e3/22cca2d21a30419c98834c0a97f0f375/FLAG009d7a1c7 [2022-07-13 02:05:21,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d04932e3/22cca2d21a30419c98834c0a97f0f375 [2022-07-13 02:05:21,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:05:21,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:05:21,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:05:21,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:05:21,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:05:21,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d3ff40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21, skipping insertion in model container [2022-07-13 02:05:21,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:05:21,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:05:21,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:05:21,319 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:05:21,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:05:21,343 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:05:21,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21 WrapperNode [2022-07-13 02:05:21,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:05:21,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:05:21,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:05:21,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:05:21,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,371 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-07-13 02:05:21,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:05:21,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:05:21,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:05:21,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:05:21,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:05:21,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:05:21,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:05:21,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:05:21,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (1/1) ... [2022-07-13 02:05:21,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:05:21,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:05:21,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 02:05:21,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 02:05:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:05:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:05:21,531 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:05:21,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:05:21,614 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:05:21,620 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:05:21,623 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:05:21,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:21 BoogieIcfgContainer [2022-07-13 02:05:21,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:05:21,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:05:21,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:05:21,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:05:21,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:05:21" (1/3) ... [2022-07-13 02:05:21,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d52cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:21, skipping insertion in model container [2022-07-13 02:05:21,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:05:21" (2/3) ... [2022-07-13 02:05:21,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d52cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:05:21, skipping insertion in model container [2022-07-13 02:05:21,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:21" (3/3) ... [2022-07-13 02:05:21,634 INFO L111 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-VMCAI2004-Ex2.c [2022-07-13 02:05:21,649 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:05:21,650 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-13 02:05:21,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:05:21,697 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@757e6dd9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@410a2457 [2022-07-13 02:05:21,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-13 02:05:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:05:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:05:21,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:05:21,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:05:21,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:05:21,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:05:21,724 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-07-13 02:05:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:05:21,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788211426] [2022-07-13 02:05:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:05:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:05:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:05:21,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:05:21,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:05:21,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788211426] [2022-07-13 02:05:21,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788211426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:05:21,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:05:21,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:05:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067311080] [2022-07-13 02:05:21,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:05:21,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:05:21,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:05:21,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:05:21,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:05:21,945 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:05:22,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:05:22,002 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-07-13 02:05:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:05:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-07-13 02:05:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:05:22,011 INFO L225 Difference]: With dead ends: 19 [2022-07-13 02:05:22,011 INFO L226 Difference]: Without dead ends: 9 [2022-07-13 02:05:22,013 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 [2022-07-13 02:05:22,016 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:05:22,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:05:22,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-13 02:05:22,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-13 02:05:22,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:05:22,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-13 02:05:22,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2022-07-13 02:05:22,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:05:22,059 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-13 02:05:22,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:05:22,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-13 02:05:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:05:22,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:05:22,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:05:22,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:05:22,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-13 02:05:22,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:05:22,061 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-07-13 02:05:22,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:05:22,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406904720] [2022-07-13 02:05:22,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:05:22,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:05:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:05:22,084 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:05:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:05:22,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:05:22,099 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:05:22,101 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-07-13 02:05:22,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-07-13 02:05:22,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-07-13 02:05:22,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-07-13 02:05:22,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:05:22,108 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-13 02:05:22,113 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:05:22,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:05:22 BoogieIcfgContainer [2022-07-13 02:05:22,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:05:22,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:05:22,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:05:22,141 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:05:22,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:05:21" (3/4) ... [2022-07-13 02:05:22,142 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 02:05:22,174 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:05:22,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:05:22,175 INFO L158 Benchmark]: Toolchain (without parser) took 996.34ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 47.9MB in the beginning and 83.8MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:05:22,176 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 63.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:05:22,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.27ms. Allocated memory is still 86.0MB. Free memory was 47.7MB in the beginning and 39.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 02:05:22,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.66ms. Allocated memory is still 86.0MB. Free memory was 39.0MB in the beginning and 37.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:05:22,178 INFO L158 Benchmark]: Boogie Preprocessor took 17.77ms. Allocated memory is still 86.0MB. Free memory was 37.7MB in the beginning and 36.8MB in the end (delta: 851.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:05:22,179 INFO L158 Benchmark]: RCFGBuilder took 233.85ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 36.8MB in the beginning and 90.7MB in the end (delta: -53.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-07-13 02:05:22,180 INFO L158 Benchmark]: TraceAbstraction took 510.74ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 85.1MB in the end (delta: 4.9MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-07-13 02:05:22,181 INFO L158 Benchmark]: Witness Printer took 34.55ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 83.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:05:22,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 63.8MB in the beginning and 63.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.27ms. Allocated memory is still 86.0MB. Free memory was 47.7MB in the beginning and 39.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.66ms. Allocated memory is still 86.0MB. Free memory was 39.0MB in the beginning and 37.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.77ms. Allocated memory is still 86.0MB. Free memory was 37.7MB in the beginning and 36.8MB in the end (delta: 851.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 233.85ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 36.8MB in the beginning and 90.7MB in the end (delta: -53.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * TraceAbstraction took 510.74ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 85.1MB in the end (delta: 4.9MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 34.55ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 83.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x >= 0 VAL [x=1073741825] [L18] -2*x VAL [x=1073741825] - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 02:05:22,227 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)