./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/a.01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-restricted-15/a.01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7dacefd51bf525e1f18311af2c5b989a40c07b1caf3a58b24e0820913f865011 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:34:25,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:34:25,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:34:25,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:34:25,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:34:25,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:34:25,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:34:25,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:34:25,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:34:25,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:34:25,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:34:25,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:34:25,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:34:25,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:34:25,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:34:25,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:34:25,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:34:25,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:34:25,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:34:25,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:34:25,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:34:25,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:34:25,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:34:25,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:34:25,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:34:25,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:34:25,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:34:25,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:34:25,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:34:25,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:34:25,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:34:25,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:34:25,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:34:25,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:34:25,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:34:25,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:34:25,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:34:25,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:34:25,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:34:25,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:34:25,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:34:25,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 08:34:25,601 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:34:25,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:34:25,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:34:25,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:34:25,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 08:34:25,602 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 08:34:25,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:34:25,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:34:25,603 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:34:25,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:34:25,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:34:25,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:34:25,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:34:25,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 08:34:25,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 08:34:25,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 08:34:25,604 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 08:34:25,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:34:25,605 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:34:25,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 08:34:25,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:34:25,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:34:25,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 08:34:25,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:34:25,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:34:25,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 08:34:25,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 08:34:25,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:34:25,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 08:34:25,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 08:34:25,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 08:34:25,607 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 08:34:25,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 08:34:25,607 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 08:34:25,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dacefd51bf525e1f18311af2c5b989a40c07b1caf3a58b24e0820913f865011 [2023-02-18 08:34:25,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:34:25,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:34:25,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:34:25,769 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:34:25,770 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:34:25,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/a.01.c [2023-02-18 08:34:26,810 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:34:26,949 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:34:26,949 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/a.01.c [2023-02-18 08:34:26,953 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e677f3bf5/ad306ef7535b4660b2706975079e3d49/FLAG7f2650af8 [2023-02-18 08:34:27,375 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e677f3bf5/ad306ef7535b4660b2706975079e3d49 [2023-02-18 08:34:27,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:34:27,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:34:27,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:34:27,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:34:27,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:34:27,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ff5f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27, skipping insertion in model container [2023-02-18 08:34:27,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:34:27,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:34:27,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:34:27,476 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:34:27,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:34:27,490 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:34:27,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27 WrapperNode [2023-02-18 08:34:27,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:34:27,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:34:27,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:34:27,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:34:27,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,506 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-02-18 08:34:27,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:34:27,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:34:27,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:34:27,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:34:27,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,516 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:34:27,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:34:27,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:34:27,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:34:27,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (1/1) ... [2023-02-18 08:34:27,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:34:27,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:34:27,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 08:34:27,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 08:34:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:34:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:34:27,605 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:34:27,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:34:27,660 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:34:27,663 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:34:27,663 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 08:34:27,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:34:27 BoogieIcfgContainer [2023-02-18 08:34:27,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:34:27,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 08:34:27,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 08:34:27,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 08:34:27,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:34:27" (1/3) ... [2023-02-18 08:34:27,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c000b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:34:27, skipping insertion in model container [2023-02-18 08:34:27,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:34:27" (2/3) ... [2023-02-18 08:34:27,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c000b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:34:27, skipping insertion in model container [2023-02-18 08:34:27,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:34:27" (3/3) ... [2023-02-18 08:34:27,670 INFO L112 eAbstractionObserver]: Analyzing ICFG a.01.c [2023-02-18 08:34:27,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 08:34:27,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 08:34:27,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 08:34:27,756 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;@59b724ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 08:34:27,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 08:34:27,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:27,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 08:34:27,762 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:27,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 08:34:27,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:27,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:27,766 INFO L85 PathProgramCache]: Analyzing trace with hash 28699890, now seen corresponding path program 1 times [2023-02-18 08:34:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:27,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542340108] [2023-02-18 08:34:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:27,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:27,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542340108] [2023-02-18 08:34:27,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542340108] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:34:27,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:34:27,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:34:27,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928809929] [2023-02-18 08:34:27,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:34:27,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:34:27,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:34:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:27,915 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) [2023-02-18 08:34:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:27,982 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2023-02-18 08:34:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:34:27,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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 [2023-02-18 08:34:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:27,988 INFO L225 Difference]: With dead ends: 31 [2023-02-18 08:34:27,988 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 08:34:27,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:27,992 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:34:27,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 08:34:28,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-18 08:34:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-02-18 08:34:28,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2023-02-18 08:34:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,024 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-02-18 08:34:28,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) 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) [2023-02-18 08:34:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-02-18 08:34:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 08:34:28,025 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:28,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 08:34:28,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 08:34:28,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:28,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2023-02-18 08:34:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:28,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601916995] [2023-02-18 08:34:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:28,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:28,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601916995] [2023-02-18 08:34:28,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601916995] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:34:28,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:34:28,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:34:28,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427536728] [2023-02-18 08:34:28,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:34:28,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:34:28,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:28,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:34:28,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,065 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. 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) [2023-02-18 08:34:28,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:28,088 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-02-18 08:34:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:34:28,088 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 [2023-02-18 08:34:28,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:28,088 INFO L225 Difference]: With dead ends: 14 [2023-02-18 08:34:28,088 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 08:34:28,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,090 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:34:28,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 08:34:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-02-18 08:34:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-02-18 08:34:28,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2023-02-18 08:34:28,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,092 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-02-18 08:34:28,092 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) [2023-02-18 08:34:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-02-18 08:34:28,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 08:34:28,093 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:28,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 08:34:28,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 08:34:28,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:28,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:28,093 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2023-02-18 08:34:28,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:28,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853059352] [2023-02-18 08:34:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:28,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:28,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853059352] [2023-02-18 08:34:28,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853059352] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:34:28,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:34:28,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:34:28,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649738502] [2023-02-18 08:34:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:34:28,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:34:28,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:28,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:34:28,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,118 INFO L87 Difference]: Start difference. First operand 12 states and 13 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) [2023-02-18 08:34:28,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:28,131 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-02-18 08:34:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:34:28,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 08:34:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:28,132 INFO L225 Difference]: With dead ends: 15 [2023-02-18 08:34:28,132 INFO L226 Difference]: Without dead ends: 14 [2023-02-18 08:34:28,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,133 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:34:28,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-18 08:34:28,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-18 08:34:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-02-18 08:34:28,142 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 6 [2023-02-18 08:34:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,142 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-02-18 08:34:28,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-02-18 08:34:28,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 08:34:28,143 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:28,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:34:28,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 08:34:28,143 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash 301623032, now seen corresponding path program 1 times [2023-02-18 08:34:28,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:28,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034621745] [2023-02-18 08:34:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 08:34:28,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:28,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034621745] [2023-02-18 08:34:28,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034621745] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:34:28,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:34:28,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:34:28,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584995008] [2023-02-18 08:34:28,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:34:28,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:34:28,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:28,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:34:28,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,172 INFO L87 Difference]: Start difference. First operand 14 states and 15 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) [2023-02-18 08:34:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:28,179 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-02-18 08:34:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:34:28,180 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 [2023-02-18 08:34:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:28,180 INFO L225 Difference]: With dead ends: 14 [2023-02-18 08:34:28,180 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 08:34:28,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,181 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:34:28,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 08:34:28,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-18 08:34:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-02-18 08:34:28,184 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2023-02-18 08:34:28,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,184 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-02-18 08:34:28,184 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) [2023-02-18 08:34:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-02-18 08:34:28,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 08:34:28,185 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:28,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:34:28,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 08:34:28,185 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash 760379461, now seen corresponding path program 1 times [2023-02-18 08:34:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:28,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567796334] [2023-02-18 08:34:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 08:34:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567796334] [2023-02-18 08:34:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567796334] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:34:28,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:34:28,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:34:28,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507014473] [2023-02-18 08:34:28,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:34:28,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:34:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:28,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:34:28,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,211 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-02-18 08:34:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:28,218 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-02-18 08:34:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:34:28,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) Word has length 9 [2023-02-18 08:34:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:28,218 INFO L225 Difference]: With dead ends: 13 [2023-02-18 08:34:28,218 INFO L226 Difference]: Without dead ends: 12 [2023-02-18 08:34:28,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:34:28,219 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 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 [2023-02-18 08:34:28,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-18 08:34:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-18 08:34:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-02-18 08:34:28,222 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2023-02-18 08:34:28,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,222 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-02-18 08:34:28,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-02-18 08:34:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-02-18 08:34:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 08:34:28,222 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:28,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-02-18 08:34:28,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 08:34:28,223 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:28,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:28,223 INFO L85 PathProgramCache]: Analyzing trace with hash 760381159, now seen corresponding path program 1 times [2023-02-18 08:34:28,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:28,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682566198] [2023-02-18 08:34:28,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:28,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:28,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682566198] [2023-02-18 08:34:28,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682566198] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:34:28,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987467356] [2023-02-18 08:34:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:34:28,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:34:28,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:34:28,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 08:34:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 08:34:28,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:34:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:28,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:34:28,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:34:28,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987467356] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:34:28,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:34:28,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 08:34:28,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160129483] [2023-02-18 08:34:28,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:34:28,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 08:34:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:28,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 08:34:28,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 08:34:28,390 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:28,415 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-02-18 08:34:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:34:28,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-18 08:34:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:28,417 INFO L225 Difference]: With dead ends: 31 [2023-02-18 08:34:28,417 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 08:34:28,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 08:34:28,418 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:34:28,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 08:34:28,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2023-02-18 08:34:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2023-02-18 08:34:28,422 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 9 [2023-02-18 08:34:28,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,422 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2023-02-18 08:34:28,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,423 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-02-18 08:34:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 08:34:28,423 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:34:28,423 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2023-02-18 08:34:28,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 08:34:28,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-18 08:34:28,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:34:28,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:34:28,629 INFO L85 PathProgramCache]: Analyzing trace with hash -757857363, now seen corresponding path program 2 times [2023-02-18 08:34:28,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:34:28,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250994408] [2023-02-18 08:34:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:34:28,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:34:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:34:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-18 08:34:28,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:34:28,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250994408] [2023-02-18 08:34:28,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250994408] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:34:28,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260703149] [2023-02-18 08:34:28,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:34:28,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:34:28,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:34:28,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 08:34:28,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 08:34:28,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-18 08:34:28,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:34:28,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 08:34:28,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:34:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-18 08:34:28,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:34:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-18 08:34:28,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260703149] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:34:28,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:34:28,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-02-18 08:34:28,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512618081] [2023-02-18 08:34:28,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:34:28,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:34:28,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:34:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:34:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:34:28,748 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2023-02-18 08:34:28,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:34:28,760 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-02-18 08:34:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:34:28,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) Word has length 18 [2023-02-18 08:34:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:34:28,761 INFO L225 Difference]: With dead ends: 21 [2023-02-18 08:34:28,761 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 08:34:28,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:34:28,762 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:34:28,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:34:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 08:34:28,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 08:34:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:34:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 08:34:28,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-02-18 08:34:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:34:28,764 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:34:28,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2023-02-18 08:34:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:34:28,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 08:34:28,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 08:34:28,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 08:34:28,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 08:34:28,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 08:34:28,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 08:34:28,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-18 08:34:28,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 08:34:28,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-02-18 08:34:28,977 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 08:34:28,977 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 08:34:28,977 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 15) the Hoare annotation is: (let ((.cse4 (+ (- 1) |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (<= 0 .cse4)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse3 (<= 0 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (+ |ULTIMATE.start_main_~y~0#1| 1))) (or (and .cse0 (< .cse1 2147483647) .cse2 .cse3) (and .cse0 .cse2 .cse3 (<= |ULTIMATE.start_main_~y~0#1| 1)) (and .cse0 .cse2 .cse3) (and .cse0 .cse2 (<= |ULTIMATE.start_main_~y~0#1| 2147483646) .cse3 (<= |ULTIMATE.start_main_~y~0#1| .cse4) (<= |ULTIMATE.start_main_~y~0#1| 0)) (and .cse0 .cse2 .cse3 (<= .cse1 2147483647))))) [2023-02-18 08:34:28,977 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2023-02-18 08:34:28,978 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 08:34:28,978 INFO L895 garLoopResultBuilder]: At program point L11-2(lines 11 17) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 2147483647))) (and .cse0 (let ((.cse1 (+ |ULTIMATE.start_main_~y~0#1| 1))) (or (and .cse0 (<= |ULTIMATE.start_main_~y~0#1| 1)) .cse0 (and (< .cse1 2147483647) .cse0) (and .cse0 (<= .cse1 2147483647)))))) [2023-02-18 08:34:28,978 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 19) the Hoare annotation is: true [2023-02-18 08:34:28,978 INFO L899 garLoopResultBuilder]: For program point L11-3(lines 11 17) no Hoare annotation was computed. [2023-02-18 08:34:28,979 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 08:34:28,979 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-02-18 08:34:28,979 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 08:34:28,979 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 08:34:28,979 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 08:34:28,979 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2023-02-18 08:34:28,980 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2023-02-18 08:34:28,985 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-02-18 08:34:28,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 08:34:28,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 08:34:28 BoogieIcfgContainer [2023-02-18 08:34:28,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 08:34:28,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:34:28,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:34:28,999 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:34:28,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:34:27" (3/4) ... [2023-02-18 08:34:29,001 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 08:34:29,007 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 08:34:29,007 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 08:34:29,008 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 08:34:29,033 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 08:34:29,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:34:29,034 INFO L158 Benchmark]: Toolchain (without parser) took 1656.39ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 75.3MB in the beginning and 128.8MB in the end (delta: -53.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-02-18 08:34:29,034 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:34:29,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 112.59ms. Allocated memory is still 119.5MB. Free memory was 75.0MB in the beginning and 65.9MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 08:34:29,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.47ms. Allocated memory is still 119.5MB. Free memory was 65.9MB in the beginning and 64.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:34:29,035 INFO L158 Benchmark]: Boogie Preprocessor took 9.88ms. Allocated memory is still 119.5MB. Free memory was 64.8MB in the beginning and 63.8MB in the end (delta: 990.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:34:29,035 INFO L158 Benchmark]: RCFGBuilder took 147.53ms. Allocated memory is still 119.5MB. Free memory was 63.5MB in the beginning and 55.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:34:29,035 INFO L158 Benchmark]: TraceAbstraction took 1332.36ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 54.4MB in the beginning and 131.0MB in the end (delta: -76.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:34:29,035 INFO L158 Benchmark]: Witness Printer took 34.50ms. Allocated memory is still 178.3MB. Free memory was 131.0MB in the beginning and 128.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:34:29,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 119.5MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 112.59ms. Allocated memory is still 119.5MB. Free memory was 75.0MB in the beginning and 65.9MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.47ms. Allocated memory is still 119.5MB. Free memory was 65.9MB in the beginning and 64.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.88ms. Allocated memory is still 119.5MB. Free memory was 64.8MB in the beginning and 63.8MB in the end (delta: 990.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 147.53ms. Allocated memory is still 119.5MB. Free memory was 63.5MB in the beginning and 55.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1332.36ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 54.4MB in the beginning and 131.0MB in the end (delta: -76.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.50ms. Allocated memory is still 178.3MB. Free memory was 131.0MB in the beginning and 128.8MB in the end (delta: 2.2MB). 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 49 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=6, InterpolantAutomatonStates: 25, 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, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 119 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 87 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 295 SizeOfPredicates, 2 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 68/101 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: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((((((0 <= -1 + x && y + 1 < 2147483647) && x <= 2147483647) && 0 <= y) || (((0 <= -1 + x && x <= 2147483647) && 0 <= y) && y <= 1)) || ((0 <= -1 + x && x <= 2147483647) && 0 <= y)) || (((((0 <= -1 + x && x <= 2147483647) && y <= 2147483646) && 0 <= y) && y <= -1 + x) && y <= 0)) || (((0 <= -1 + x && x <= 2147483647) && 0 <= y) && y + 1 <= 2147483647) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2147483647 && ((((x <= 2147483647 && y <= 1) || x <= 2147483647) || (y + 1 < 2147483647 && x <= 2147483647)) || (x <= 2147483647 && y + 1 <= 2147483647)) RESULT: Ultimate proved your program to be correct! [2023-02-18 08:34:29,065 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