./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 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-recursive-malloc/chunk1-2.i -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 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:14:13,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:14:13,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:14:13,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:14:13,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:14:13,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:14:13,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:14:13,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:14:13,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:14:13,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:14:13,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:14:13,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:14:13,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:14:13,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:14:13,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:14:13,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:14:13,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:14:13,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:14:13,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:14:13,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:14:13,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:14:13,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:14:13,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:14:13,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:14:13,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:14:13,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:14:13,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:14:13,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:14:13,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:14:13,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:14:13,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:14:13,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:14:13,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:14:13,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:14:13,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:14:13,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:14:13,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:14:13,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:14:13,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:14:13,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:14:13,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:14:13,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 02:14:13,578 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:14:13,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:14:13,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:14:13,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:14:13,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 02:14:13,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 02:14:13,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:14:13,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:14:13,583 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:14:13,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:14:13,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:14:13,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:14:13,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:14:13,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 02:14:13,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 02:14:13,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 02:14:13,585 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 02:14:13,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:14:13,585 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:14:13,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 02:14:13,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:14:13,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:14:13,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 02:14:13,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:14:13,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:14:13,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 02:14:13,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 02:14:13,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:14:13,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 02:14:13,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 02:14:13,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 02:14:13,587 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 02:14:13,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 02:14:13,587 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 02:14:13,587 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2023-02-15 02:14:13,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:14:13,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:14:13,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:14:13,830 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:14:13,830 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:14:13,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2023-02-15 02:14:14,959 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:14:15,152 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:14:15,153 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2023-02-15 02:14:15,157 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b403d99/d4e3ae5fe9544148ba2d24a5d2ce2faf/FLAGb880bb3df [2023-02-15 02:14:15,184 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4b403d99/d4e3ae5fe9544148ba2d24a5d2ce2faf [2023-02-15 02:14:15,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:14:15,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:14:15,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:14:15,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:14:15,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:14:15,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce936cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15, skipping insertion in model container [2023-02-15 02:14:15,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:14:15,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:14:15,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:14:15,387 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:14:15,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:14:15,411 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:14:15,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15 WrapperNode [2023-02-15 02:14:15,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:14:15,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:14:15,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:14:15,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:14:15,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,435 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-15 02:14:15,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:14:15,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:14:15,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:14:15,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:14:15,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,465 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:14:15,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:14:15,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:14:15,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:14:15,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (1/1) ... [2023-02-15 02:14:15,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:14:15,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:15,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 02:14:15,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 02:14:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 02:14:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 02:14:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2023-02-15 02:14:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2023-02-15 02:14:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:14:15,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:14:15,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 02:14:15,583 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:14:15,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:14:15,665 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:14:15,668 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:14:15,669 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 02:14:15,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:15 BoogieIcfgContainer [2023-02-15 02:14:15,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:14:15,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 02:14:15,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 02:14:15,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 02:14:15,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:14:15" (1/3) ... [2023-02-15 02:14:15,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24443c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:14:15, skipping insertion in model container [2023-02-15 02:14:15,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:15" (2/3) ... [2023-02-15 02:14:15,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24443c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:14:15, skipping insertion in model container [2023-02-15 02:14:15,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:15" (3/3) ... [2023-02-15 02:14:15,685 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2023-02-15 02:14:15,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 02:14:15,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-15 02:14:15,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 02:14:15,784 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;@463ebc80, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 02:14:15,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-15 02:14:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-15 02:14:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:14:15,792 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:15,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:15,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-15 02:14:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash -990003817, now seen corresponding path program 1 times [2023-02-15 02:14:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:15,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631190441] [2023-02-15 02:14:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:16,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:16,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:16,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631190441] [2023-02-15 02:14:16,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631190441] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:16,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:16,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 02:14:16,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405374929] [2023-02-15 02:14:16,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:16,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 02:14:16,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:16,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 02:14:16,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 02:14:16,195 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:16,325 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-02-15 02:14:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 02:14:16,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 02:14:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:16,337 INFO L225 Difference]: With dead ends: 23 [2023-02-15 02:14:16,337 INFO L226 Difference]: Without dead ends: 10 [2023-02-15 02:14:16,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-02-15 02:14:16,347 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:16,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 40 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:14:16,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-15 02:14:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-15 02:14:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-15 02:14:16,378 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2023-02-15 02:14:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:16,379 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-15 02:14:16,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-15 02:14:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 02:14:16,379 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:16,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:16,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 02:14:16,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-15 02:14:16,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:16,384 INFO L85 PathProgramCache]: Analyzing trace with hash -625347217, now seen corresponding path program 1 times [2023-02-15 02:14:16,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:16,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481023434] [2023-02-15 02:14:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:16,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:16,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:16,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481023434] [2023-02-15 02:14:16,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481023434] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:16,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:16,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 02:14:16,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917831905] [2023-02-15 02:14:16,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:16,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 02:14:16,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:16,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 02:14:16,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 02:14:16,659 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:16,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:16,731 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-02-15 02:14:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 02:14:16,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 02:14:16,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:16,732 INFO L225 Difference]: With dead ends: 15 [2023-02-15 02:14:16,733 INFO L226 Difference]: Without dead ends: 14 [2023-02-15 02:14:16,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-02-15 02:14:16,734 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:16,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:16,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-15 02:14:16,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-15 02:14:16,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 02:14:16,739 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2023-02-15 02:14:16,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:16,739 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 02:14:16,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 02:14:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 02:14:16,744 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:16,744 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:16,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 02:14:16,745 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-15 02:14:16,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash -996533012, now seen corresponding path program 1 times [2023-02-15 02:14:16,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:16,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962510033] [2023-02-15 02:14:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:16,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:16,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:17,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:17,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962510033] [2023-02-15 02:14:17,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962510033] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:17,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671669123] [2023-02-15 02:14:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:17,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:17,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:17,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:14:17,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 02:14:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:17,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-15 02:14:17,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:17,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 02:14:17,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-02-15 02:14:17,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-02-15 02:14:17,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 02:14:17,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2023-02-15 02:14:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 02:14:17,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:17,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671669123] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:17,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:17,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 9] total 21 [2023-02-15 02:14:17,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420573521] [2023-02-15 02:14:17,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:17,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 02:14:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 02:14:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2023-02-15 02:14:17,699 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 22 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:18,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:18,073 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-02-15 02:14:18,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 02:14:18,074 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-15 02:14:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:18,074 INFO L225 Difference]: With dead ends: 14 [2023-02-15 02:14:18,074 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 02:14:18,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2023-02-15 02:14:18,075 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 32 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:18,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 23 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 02:14:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 02:14:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 02:14:18,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-02-15 02:14:18,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:18,077 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:14:18,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 16 states have (on average 1.625) internal successors, (26), 17 states have internal predecessors, (26), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:18,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:14:18,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 02:14:18,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-02-15 02:14:18,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-02-15 02:14:18,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:18,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:18,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 02:14:18,437 INFO L899 garLoopResultBuilder]: For program point chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-02-15 02:14:18,438 INFO L895 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (let ((.cse8 (select |old(#memory_int)| |chunk_#in~data.base|))) (let ((.cse0 (select .cse8 |chunk_#in~data.offset|)) (.cse1 (select .cse8 12))) (or (and (not (= .cse0 .cse1)) (not (<= .cse0 2147483646))) (not (= |chunk_#in~data.offset| 0)) (not (<= 0 (+ .cse0 2147483648))) (not (<= .cse1 2147483647)) (let ((.cse6 (select |#memory_int| |chunk_#in~data.base|)) (.cse7 (select |#memory_int| chunk_~data.base))) (let ((.cse2 (select .cse7 chunk_~data.offset)) (.cse4 (select .cse6 12)) (.cse3 (select .cse7 12)) (.cse5 (select .cse6 |chunk_#in~data.offset|))) (and (<= 0 (+ 2147483648 .cse2)) (= chunk_~data.offset 0) (or (<= .cse2 2147483646) (= .cse3 .cse2)) (<= .cse4 2147483647) (or (<= .cse5 2147483646) (= .cse4 .cse5)) (<= .cse3 2147483647) (<= 0 (+ .cse5 2147483648)))))))) [2023-02-15 02:14:18,438 INFO L899 garLoopResultBuilder]: For program point chunkEXIT(lines 8 16) no Hoare annotation was computed. [2023-02-15 02:14:18,438 INFO L899 garLoopResultBuilder]: For program point chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-02-15 02:14:18,438 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-02-15 02:14:18,438 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2023-02-15 02:14:18,439 INFO L899 garLoopResultBuilder]: For program point chunkFINAL(lines 8 16) no Hoare annotation was computed. [2023-02-15 02:14:18,439 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 16) the Hoare annotation is: (let ((.cse10 (select |old(#memory_int)| |chunk_#in~data.base|)) (.cse9 (select |#memory_int| |chunk_#in~data.base|))) (let ((.cse2 (select .cse9 |chunk_#in~data.offset|)) (.cse4 (select .cse10 12)) (.cse3 (select .cse10 |chunk_#in~data.offset|))) (let ((.cse6 (not (= |chunk_#in~data.offset| 0))) (.cse7 (not (<= 0 (+ .cse3 2147483648)))) (.cse5 (not (<= .cse3 2147483646))) (.cse8 (not (<= .cse4 2147483647))) (.cse0 (select .cse9 12)) (.cse1 (<= .cse2 2147483646))) (and (or (and (<= .cse0 2147483647) (or .cse1 (= .cse0 .cse2)) (<= 0 (+ .cse2 2147483648))) (and (not (= .cse3 .cse4)) .cse5) .cse6 .cse7 .cse8) (or .cse6 .cse7 .cse5 .cse8 (and (not (= 2147483647 .cse4)) (not (< .cse3 2147483646))) (and (or (< .cse2 2147483646) (= 2147483647 .cse0)) .cse1)))))) [2023-02-15 02:14:18,439 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 10) no Hoare annotation was computed. [2023-02-15 02:14:18,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 02:14:18,439 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 02:14:18,439 INFO L895 garLoopResultBuilder]: At program point L30(line 30) the Hoare annotation is: (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~data~0#1.base|))) (let ((.cse1 (select .cse2 |ULTIMATE.start_main_~data~0#1.offset|)) (.cse0 (select .cse2 (+ 12 |ULTIMATE.start_main_~data~0#1.offset|)))) (and (<= .cse0 2147483647) (<= |ULTIMATE.start_main_~upper~0#1| 2147483647) (= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 0 (+ .cse1 2147483648)) (<= .cse1 2147483646) (or (< .cse1 2147483646) (= 2147483647 .cse0))))) [2023-02-15 02:14:18,439 INFO L895 garLoopResultBuilder]: At program point L30-1(lines 19 33) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2023-02-15 02:14:18,439 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 02:14:18,440 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 02:14:18,440 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 26) no Hoare annotation was computed. [2023-02-15 02:14:18,442 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-15 02:14:18,443 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 02:14:18,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:14:18 BoogieIcfgContainer [2023-02-15 02:14:18,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 02:14:18,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:14:18,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:14:18,462 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:14:18,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:15" (3/4) ... [2023-02-15 02:14:18,465 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 02:14:18,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure chunk [2023-02-15 02:14:18,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-15 02:14:18,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 02:14:18,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 02:14:18,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 02:14:18,497 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 02:14:18,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:14:18,507 INFO L158 Benchmark]: Toolchain (without parser) took 3320.42ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 70.3MB in the beginning and 94.8MB in the end (delta: -24.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-02-15 02:14:18,508 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:14:18,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.58ms. Allocated memory is still 113.2MB. Free memory was 70.3MB in the beginning and 61.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 02:14:18,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.97ms. Allocated memory is still 113.2MB. Free memory was 61.1MB in the beginning and 59.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:14:18,510 INFO L158 Benchmark]: Boogie Preprocessor took 30.67ms. Allocated memory is still 113.2MB. Free memory was 59.4MB in the beginning and 58.6MB in the end (delta: 866.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:14:18,511 INFO L158 Benchmark]: RCFGBuilder took 212.26ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 58.2MB in the beginning and 111.1MB in the end (delta: -52.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-02-15 02:14:18,511 INFO L158 Benchmark]: TraceAbstraction took 2779.95ms. Allocated memory is still 138.4MB. Free memory was 110.4MB in the beginning and 96.9MB in the end (delta: 13.5MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2023-02-15 02:14:18,511 INFO L158 Benchmark]: Witness Printer took 45.52ms. Allocated memory is still 138.4MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:14:18,512 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 113.2MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.58ms. Allocated memory is still 113.2MB. Free memory was 70.3MB in the beginning and 61.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.97ms. Allocated memory is still 113.2MB. Free memory was 61.1MB in the beginning and 59.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.67ms. Allocated memory is still 113.2MB. Free memory was 59.4MB in the beginning and 58.6MB in the end (delta: 866.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 212.26ms. Allocated memory was 113.2MB in the beginning and 138.4MB in the end (delta: 25.2MB). Free memory was 58.2MB in the beginning and 111.1MB in the end (delta: -52.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2779.95ms. Allocated memory is still 138.4MB. Free memory was 110.4MB in the beginning and 96.9MB in the end (delta: 13.5MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. * Witness Printer took 45.52ms. Allocated memory is still 138.4MB. Free memory was 96.9MB in the beginning and 94.8MB 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: 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 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 19 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 7 NumberOfFragments, 329 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 167 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 496 SizeOfPredicates, 11 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 RESULT: Ultimate proved your program to be correct! [2023-02-15 02:14:18,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE