./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56797e61f5ee281c00742e683df6d32e4d423773c50b7f1c748881e4f8402597 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:08:28,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:08:28,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:08:29,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:08:29,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:08:29,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:08:29,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:08:29,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:08:29,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:08:29,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:08:29,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:08:29,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:08:29,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:08:29,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:08:29,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:08:29,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:08:29,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:08:29,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:08:29,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:08:29,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:08:29,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:08:29,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:08:29,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:08:29,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:08:29,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:08:29,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:08:29,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:08:29,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:08:29,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:08:29,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:08:29,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:08:29,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:08:29,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:08:29,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:08:29,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:08:29,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:08:29,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:08:29,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:08:29,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:08:29,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:08:29,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:08:29,049 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-16 04:08:29,079 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:08:29,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:08:29,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:08:29,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:08:29,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:08:29,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:08:29,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:08:29,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:08:29,082 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:08:29,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:08:29,083 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 04:08:29,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:08:29,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:08:29,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 04:08:29,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:08:29,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:08:29,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:08:29,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:08:29,084 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:08:29,085 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 04:08:29,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:08:29,085 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:08:29,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:08:29,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:08:29,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:08:29,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:08:29,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:08:29,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:08:29,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:08:29,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:08:29,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:08:29,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 04:08:29,088 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:08:29,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:08:29,088 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:08:29,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:08:29,088 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:08:29,088 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56797e61f5ee281c00742e683df6d32e4d423773c50b7f1c748881e4f8402597 [2023-02-16 04:08:29,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:08:29,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:08:29,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:08:29,300 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:08:29,300 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:08:29,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2023-02-16 04:08:30,462 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:08:30,649 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:08:30,650 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2023-02-16 04:08:30,655 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86ceb8b1/eee7ecd7cfde47fc994c1ba18e93689b/FLAG45f0fd3f2 [2023-02-16 04:08:30,671 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a86ceb8b1/eee7ecd7cfde47fc994c1ba18e93689b [2023-02-16 04:08:30,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:08:30,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:08:30,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:08:30,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:08:30,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:08:30,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abfb1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30, skipping insertion in model container [2023-02-16 04:08:30,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:08:30,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:08:30,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2023-02-16 04:08:30,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:08:30,839 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:08:30,848 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2023-02-16 04:08:30,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:08:30,860 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:08:30,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30 WrapperNode [2023-02-16 04:08:30,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:08:30,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:08:30,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:08:30,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:08:30,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,885 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2023-02-16 04:08:30,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:08:30,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:08:30,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:08:30,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:08:30,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,901 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:08:30,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:08:30,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:08:30,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:08:30,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (1/1) ... [2023-02-16 04:08:30,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:08:30,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:08:30,943 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) [2023-02-16 04:08:30,948 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 [2023-02-16 04:08:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 04:08:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 04:08:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:08:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:08:31,037 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:08:31,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:08:31,191 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:08:31,196 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:08:31,204 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 04:08:31,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:08:31 BoogieIcfgContainer [2023-02-16 04:08:31,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:08:31,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:08:31,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:08:31,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:08:31,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:08:30" (1/3) ... [2023-02-16 04:08:31,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa25a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:08:31, skipping insertion in model container [2023-02-16 04:08:31,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:08:30" (2/3) ... [2023-02-16 04:08:31,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa25a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:08:31, skipping insertion in model container [2023-02-16 04:08:31,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:08:31" (3/3) ... [2023-02-16 04:08:31,213 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2023-02-16 04:08:31,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:08:31,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-16 04:08:31,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:08:31,292 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;@2fbf6249, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:08:31,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-16 04:08:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 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) [2023-02-16 04:08:31,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-16 04:08:31,302 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:08:31,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 04:08:31,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-16 04:08:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:08:31,311 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-16 04:08:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:08:31,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838997825] [2023-02-16 04:08:31,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:08:31,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:08:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:08:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:08:31,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:08:31,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838997825] [2023-02-16 04:08:31,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838997825] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:08:31,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:08:31,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:08:31,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900171418] [2023-02-16 04:08:31,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:08:31,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:08:31,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:08:31,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:08:31,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:08:31,555 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-16 04:08:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:08:31,625 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2023-02-16 04:08:31,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:08:31,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-02-16 04:08:31,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:08:31,636 INFO L225 Difference]: With dead ends: 24 [2023-02-16 04:08:31,637 INFO L226 Difference]: Without dead ends: 11 [2023-02-16 04:08:31,639 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 [2023-02-16 04:08:31,645 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:08:31,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:08:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-16 04:08:31,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-16 04:08:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:08:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-02-16 04:08:31,688 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2023-02-16 04:08:31,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:08:31,689 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-16 04:08:31,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-16 04:08:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-02-16 04:08:31,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-16 04:08:31,690 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:08:31,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:08:31,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 04:08:31,691 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)] === [2023-02-16 04:08:31,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:08:31,692 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-16 04:08:31,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:08:31,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807519262] [2023-02-16 04:08:31,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:08:31,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:08:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:08:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:08:31,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:08:31,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807519262] [2023-02-16 04:08:31,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807519262] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:08:31,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:08:31,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:08:31,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881951832] [2023-02-16 04:08:31,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:08:31,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:08:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:08:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:08:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:08:31,758 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:08:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:08:31,778 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-02-16 04:08:31,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:08:31,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-16 04:08:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:08:31,781 INFO L225 Difference]: With dead ends: 12 [2023-02-16 04:08:31,781 INFO L226 Difference]: Without dead ends: 11 [2023-02-16 04:08:31,782 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 [2023-02-16 04:08:31,783 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 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 [2023-02-16 04:08:31,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:08:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-16 04:08:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-02-16 04:08:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:08:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-16 04:08:31,792 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2023-02-16 04:08:31,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:08:31,793 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-16 04:08:31,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:08:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-16 04:08:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-16 04:08:31,797 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:08:31,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:08:31,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 04:08:31,797 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)] === [2023-02-16 04:08:31,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:08:31,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-16 04:08:31,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:08:31,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184466083] [2023-02-16 04:08:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:08:31,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:08:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:08:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:08:31,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:08:31,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184466083] [2023-02-16 04:08:31,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184466083] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:08:31,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:08:31,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:08:31,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743519671] [2023-02-16 04:08:31,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:08:31,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:08:31,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:08:31,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:08:31,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:08:31,885 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2023-02-16 04:08:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:08:31,896 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-02-16 04:08:31,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:08:31,898 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 [2023-02-16 04:08:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:08:31,898 INFO L225 Difference]: With dead ends: 10 [2023-02-16 04:08:31,899 INFO L226 Difference]: Without dead ends: 9 [2023-02-16 04:08:31,899 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 [2023-02-16 04:08:31,901 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 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 [2023-02-16 04:08:31,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:08:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-16 04:08:31,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-16 04:08:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) 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) [2023-02-16 04:08:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-02-16 04:08:31,907 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2023-02-16 04:08:31,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:08:31,907 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-02-16 04:08:31,907 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) [2023-02-16 04:08:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-02-16 04:08:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 04:08:31,908 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:08:31,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:08:31,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 04:08:31,909 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-16 04:08:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:08:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-16 04:08:31,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:08:31,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156965191] [2023-02-16 04:08:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:08:31,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:08:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:08:31,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:08:31,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:08:31,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156965191] [2023-02-16 04:08:31,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156965191] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:08:31,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:08:31,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:08:31,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351880607] [2023-02-16 04:08:31,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:08:31,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:08:31,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:08:31,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:08:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:08:31,957 INFO L87 Difference]: Start difference. First operand 9 states and 9 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) [2023-02-16 04:08:31,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:08:31,968 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-02-16 04:08:31,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:08:31,969 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 [2023-02-16 04:08:31,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:08:31,969 INFO L225 Difference]: With dead ends: 10 [2023-02-16 04:08:31,969 INFO L226 Difference]: Without dead ends: 0 [2023-02-16 04:08:31,970 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 [2023-02-16 04:08:31,971 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 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 [2023-02-16 04:08:31,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:08:31,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-16 04:08:31,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-16 04:08:31,972 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) [2023-02-16 04:08:31,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-16 04:08:31,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-02-16 04:08:31,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:08:31,973 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:08:31,973 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) [2023-02-16 04:08:31,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:08:31,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-16 04:08:31,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-16 04:08:31,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-16 04:08:31,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-16 04:08:31,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-16 04:08:31,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 04:08:31,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-16 04:08:32,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-02-16 04:08:32,004 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-16 04:08:32,004 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-02-16 04:08:32,004 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-02-16 04:08:32,005 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-02-16 04:08:32,005 INFO L895 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-02-16 04:08:32,005 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2023-02-16 04:08:32,005 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-02-16 04:08:32,006 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-16 04:08:32,006 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 29) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) [2023-02-16 04:08:32,006 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-16 04:08:32,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-02-16 04:08:32,006 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-02-16 04:08:32,007 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-16 04:08:32,007 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-02-16 04:08:32,007 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-02-16 04:08:32,007 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-02-16 04:08:32,007 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2023-02-16 04:08:32,010 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-16 04:08:32,012 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 04:08:32,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 04:08:32 BoogieIcfgContainer [2023-02-16 04:08:32,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 04:08:32,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:08:32,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:08:32,026 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:08:32,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:08:31" (3/4) ... [2023-02-16 04:08:32,029 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-16 04:08:32,037 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-16 04:08:32,037 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-16 04:08:32,037 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-16 04:08:32,038 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-16 04:08:32,063 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 04:08:32,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:08:32,064 INFO L158 Benchmark]: Toolchain (without parser) took 1390.02ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 90.8MB in the beginning and 123.1MB in the end (delta: -32.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-02-16 04:08:32,064 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 136.3MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:08:32,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.54ms. Allocated memory is still 136.3MB. Free memory was 90.8MB in the beginning and 80.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:08:32,065 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.98ms. Allocated memory is still 136.3MB. Free memory was 80.9MB in the beginning and 79.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:08:32,065 INFO L158 Benchmark]: Boogie Preprocessor took 17.07ms. Allocated memory is still 136.3MB. Free memory was 79.3MB in the beginning and 78.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:08:32,066 INFO L158 Benchmark]: RCFGBuilder took 302.71ms. Allocated memory is still 136.3MB. Free memory was 78.2MB in the beginning and 68.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:08:32,066 INFO L158 Benchmark]: TraceAbstraction took 817.11ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 125.2MB in the end (delta: -56.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:08:32,066 INFO L158 Benchmark]: Witness Printer took 38.28ms. Allocated memory is still 174.1MB. Free memory was 125.2MB in the beginning and 123.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:08:32,068 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 136.3MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.54ms. Allocated memory is still 136.3MB. Free memory was 90.8MB in the beginning and 80.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.98ms. Allocated memory is still 136.3MB. Free memory was 80.9MB in the beginning and 79.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.07ms. Allocated memory is still 136.3MB. Free memory was 79.3MB in the beginning and 78.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.71ms. Allocated memory is still 136.3MB. Free memory was 78.2MB in the beginning and 68.9MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 817.11ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 125.2MB in the end (delta: -56.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.28ms. Allocated memory is still 174.1MB. Free memory was 125.2MB in the beginning and 123.1MB 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 26 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 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, 4 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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: 19]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 <= y + 2147483648 && 0 <= x + 2147483648 RESULT: Ultimate proved your program to be correct! [2023-02-16 04:08:32,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE