./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.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 cad2c6f6e8ebe2adcd550e4a56b83be37e52f812ae33bfb645236c6925734dbf --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:16:57,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:16:57,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:16:57,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:16:57,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:16:57,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:16:57,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:16:57,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:16:57,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:16:57,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:16:57,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:16:57,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:16:57,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:16:57,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:16:57,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:16:57,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:16:57,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:16:57,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:16:57,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:16:57,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:16:57,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:16:57,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:16:57,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:16:57,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:16:57,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:16:57,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:16:57,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:16:57,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:16:57,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:16:57,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:16:57,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:16:57,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:16:57,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:16:57,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:16:57,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:16:57,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:16:57,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:16:57,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:16:57,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:16:57,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:16:57,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:16:57,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-17 09:16:57,461 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:16:57,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:16:57,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:16:57,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:16:57,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 09:16:57,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 09:16:57,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:16:57,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:16:57,465 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:16:57,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:16:57,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:16:57,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:16:57,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:16:57,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 09:16:57,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 09:16:57,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 09:16:57,467 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 09:16:57,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:16:57,467 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:16:57,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 09:16:57,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:16:57,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:16:57,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 09:16:57,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:16:57,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:16:57,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 09:16:57,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 09:16:57,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:16:57,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 09:16:57,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 09:16:57,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 09:16:57,470 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 09:16:57,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 09:16:57,470 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 09:16:57,471 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad2c6f6e8ebe2adcd550e4a56b83be37e52f812ae33bfb645236c6925734dbf [2023-02-17 09:16:57,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:16:57,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:16:57,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:16:57,694 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:16:57,694 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:16:57,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c [2023-02-17 09:16:58,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:16:59,002 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:16:59,003 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays01-EquivalentConstantIndices-1.c [2023-02-17 09:16:59,007 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6408938c/24dc2b1d987a4aec9ee5c50335f67666/FLAG4b7085326 [2023-02-17 09:16:59,019 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6408938c/24dc2b1d987a4aec9ee5c50335f67666 [2023-02-17 09:16:59,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:16:59,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:16:59,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:16:59,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:16:59,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:16:59,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c32a6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59, skipping insertion in model container [2023-02-17 09:16:59,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:16:59,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:16:59,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:16:59,160 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:16:59,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:16:59,184 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:16:59,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59 WrapperNode [2023-02-17 09:16:59,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:16:59,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:16:59,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:16:59,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:16:59,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,211 INFO L138 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2023-02-17 09:16:59,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:16:59,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:16:59,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:16:59,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:16:59,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,226 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:16:59,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:16:59,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:16:59,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:16:59,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (1/1) ... [2023-02-17 09:16:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:16:59,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:16:59,260 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) [2023-02-17 09:16:59,265 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 [2023-02-17 09:16:59,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 09:16:59,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:16:59,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:16:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 09:16:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 09:16:59,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 09:16:59,374 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:16:59,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:16:59,454 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:16:59,459 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:16:59,459 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-17 09:16:59,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:16:59 BoogieIcfgContainer [2023-02-17 09:16:59,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:16:59,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 09:16:59,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 09:16:59,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 09:16:59,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 09:16:59" (1/3) ... [2023-02-17 09:16:59,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b2aef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:16:59, skipping insertion in model container [2023-02-17 09:16:59,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:59" (2/3) ... [2023-02-17 09:16:59,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b2aef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:16:59, skipping insertion in model container [2023-02-17 09:16:59,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:16:59" (3/3) ... [2023-02-17 09:16:59,469 INFO L112 eAbstractionObserver]: Analyzing ICFG Arrays01-EquivalentConstantIndices-1.c [2023-02-17 09:16:59,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 09:16:59,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-17 09:16:59,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 09:16:59,536 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;@67991db1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2023-02-17 09:16:59,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-17 09:16:59,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:16:59,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 09:16:59,547 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:16:59,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 09:16:59,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:16:59,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:16:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2023-02-17 09:16:59,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:16:59,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736752863] [2023-02-17 09:16:59,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:16:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:16:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:16:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:16:59,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:16:59,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736752863] [2023-02-17 09:16:59,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736752863] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:16:59,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:16:59,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 09:16:59,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824749019] [2023-02-17 09:16:59,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:16:59,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 09:16:59,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:16:59,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 09:16:59,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:16:59,797 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-17 09:16:59,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:16:59,838 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-02-17 09:16:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 09:16:59,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2023-02-17 09:16:59,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:16:59,857 INFO L225 Difference]: With dead ends: 34 [2023-02-17 09:16:59,857 INFO L226 Difference]: Without dead ends: 18 [2023-02-17 09:16:59,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:16:59,871 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:16:59,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:16:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-17 09:16:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-17 09:16:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 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) [2023-02-17 09:16:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-02-17 09:16:59,896 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2023-02-17 09:16:59,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:16:59,897 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-02-17 09:16:59,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2023-02-17 09:16:59,897 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-02-17 09:16:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 09:16:59,898 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:16:59,909 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-02-17 09:16:59,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 09:16:59,913 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)] === [2023-02-17 09:16:59,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:16:59,914 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2023-02-17 09:16:59,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:16:59,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841974145] [2023-02-17 09:16:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:16:59,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:16:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:00,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:00,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841974145] [2023-02-17 09:17:00,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841974145] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:00,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555219140] [2023-02-17 09:17:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:00,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:00,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:00,050 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) [2023-02-17 09:17:00,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 09:17:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:00,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 09:17:00,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:00,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 09:17:00,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555219140] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:00,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 09:17:00,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-17 09:17:00,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102009190] [2023-02-17 09:17:00,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:00,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 09:17:00,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:00,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 09:17:00,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-17 09:17:00,189 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2023-02-17 09:17:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:00,228 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2023-02-17 09:17:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:17:00,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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 [2023-02-17 09:17:00,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:00,229 INFO L225 Difference]: With dead ends: 18 [2023-02-17 09:17:00,231 INFO L226 Difference]: Without dead ends: 17 [2023-02-17 09:17:00,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-17 09:17:00,234 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:00,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 16 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:17:00,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-17 09:17:00,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-17 09:17:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 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) [2023-02-17 09:17:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-02-17 09:17:00,239 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2023-02-17 09:17:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:00,240 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-02-17 09:17:00,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2023-02-17 09:17:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-02-17 09:17:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 09:17:00,241 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:00,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:00,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:00,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:00,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:00,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1607296535, now seen corresponding path program 1 times [2023-02-17 09:17:00,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:00,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283155391] [2023-02-17 09:17:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:00,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283155391] [2023-02-17 09:17:00,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283155391] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:00,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805374314] [2023-02-17 09:17:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:00,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:00,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:00,527 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) [2023-02-17 09:17:00,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 09:17:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:00,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 09:17:00,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:00,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:00,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805374314] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:00,640 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:00,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-02-17 09:17:00,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431711146] [2023-02-17 09:17:00,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:00,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-17 09:17:00,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:00,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-17 09:17:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-17 09:17:00,645 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:00,696 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2023-02-17 09:17:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 09:17:00,697 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 09:17:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:00,700 INFO L225 Difference]: With dead ends: 29 [2023-02-17 09:17:00,700 INFO L226 Difference]: Without dead ends: 22 [2023-02-17 09:17:00,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-02-17 09:17:00,703 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:00,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 37 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:17:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-17 09:17:00,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-17 09:17:00,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-17 09:17:00,710 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2023-02-17 09:17:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:00,711 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-17 09:17:00,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-17 09:17:00,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-17 09:17:00,712 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:00,712 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1] [2023-02-17 09:17:00,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:00,917 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,SelfDestructingSolverStorable2 [2023-02-17 09:17:00,918 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:00,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:00,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1053425458, now seen corresponding path program 1 times [2023-02-17 09:17:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:00,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013132815] [2023-02-17 09:17:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:00,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:00,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 09:17:00,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:00,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013132815] [2023-02-17 09:17:00,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013132815] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:00,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:00,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 09:17:00,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618364404] [2023-02-17 09:17:01,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:01,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 09:17:01,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 09:17:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:17:01,001 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:01,017 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2023-02-17 09:17:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 09:17:01,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-17 09:17:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:01,018 INFO L225 Difference]: With dead ends: 22 [2023-02-17 09:17:01,019 INFO L226 Difference]: Without dead ends: 21 [2023-02-17 09:17:01,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:17:01,020 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:01,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:17:01,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-17 09:17:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-17 09:17:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-02-17 09:17:01,025 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2023-02-17 09:17:01,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:01,026 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-02-17 09:17:01,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:01,026 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-02-17 09:17:01,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 09:17:01,027 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:01,027 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:01,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 09:17:01,027 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1100938783, now seen corresponding path program 2 times [2023-02-17 09:17:01,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:01,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017508102] [2023-02-17 09:17:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:01,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:01,112 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-17 09:17:01,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:01,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017508102] [2023-02-17 09:17:01,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017508102] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:01,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:01,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 09:17:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328175960] [2023-02-17 09:17:01,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:01,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 09:17:01,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:01,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 09:17:01,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:17:01,123 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:01,140 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2023-02-17 09:17:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 09:17:01,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-17 09:17:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:01,142 INFO L225 Difference]: With dead ends: 21 [2023-02-17 09:17:01,142 INFO L226 Difference]: Without dead ends: 20 [2023-02-17 09:17:01,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:17:01,145 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:01,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:17:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-17 09:17:01,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-17 09:17:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:01,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2023-02-17 09:17:01,151 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 18 [2023-02-17 09:17:01,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:01,151 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2023-02-17 09:17:01,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:17:01,152 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2023-02-17 09:17:01,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-17 09:17:01,157 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:01,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:01,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 09:17:01,158 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash -230636033, now seen corresponding path program 1 times [2023-02-17 09:17:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:01,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643821691] [2023-02-17 09:17:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:01,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:01,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643821691] [2023-02-17 09:17:01,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643821691] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:01,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723927603] [2023-02-17 09:17:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:01,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:01,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:01,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:17:01,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 09:17:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:01,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 09:17:01,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:01,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:01,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723927603] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:01,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:01,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-02-17 09:17:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975603740] [2023-02-17 09:17:01,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:01,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-17 09:17:01,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:01,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-17 09:17:01,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-02-17 09:17:01,475 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 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) [2023-02-17 09:17:01,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:01,565 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-02-17 09:17:01,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-17 09:17:01,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 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 19 [2023-02-17 09:17:01,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:01,566 INFO L225 Difference]: With dead ends: 41 [2023-02-17 09:17:01,566 INFO L226 Difference]: Without dead ends: 36 [2023-02-17 09:17:01,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-02-17 09:17:01,569 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:01,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 40 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:17:01,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-17 09:17:01,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-17 09:17:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 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) [2023-02-17 09:17:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2023-02-17 09:17:01,577 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 19 [2023-02-17 09:17:01,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:01,578 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2023-02-17 09:17:01,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 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) [2023-02-17 09:17:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2023-02-17 09:17:01,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-17 09:17:01,578 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:01,579 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:01,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:01,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:01,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:01,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:01,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1713778671, now seen corresponding path program 2 times [2023-02-17 09:17:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:01,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539247945] [2023-02-17 09:17:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:01,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:01,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:01,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539247945] [2023-02-17 09:17:01,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539247945] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:01,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66631010] [2023-02-17 09:17:01,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:17:01,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:01,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:01,994 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:17:01,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 09:17:02,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:17:02,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:02,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 09:17:02,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:02,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:02,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66631010] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:02,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:02,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-02-17 09:17:02,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003912044] [2023-02-17 09:17:02,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:02,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-17 09:17:02,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:02,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-17 09:17:02,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-02-17 09:17:02,382 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 34 states have internal predecessors, (70), 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) [2023-02-17 09:17:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:02,604 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2023-02-17 09:17:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-17 09:17:02,605 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 34 states have internal predecessors, (70), 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 35 [2023-02-17 09:17:02,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:02,606 INFO L225 Difference]: With dead ends: 73 [2023-02-17 09:17:02,606 INFO L226 Difference]: Without dead ends: 68 [2023-02-17 09:17:02,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-02-17 09:17:02,608 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 78 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:02,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 55 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:17:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-02-17 09:17:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-02-17 09:17:02,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 67 states have internal predecessors, (69), 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) [2023-02-17 09:17:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2023-02-17 09:17:02,613 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 35 [2023-02-17 09:17:02,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:02,614 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2023-02-17 09:17:02,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.0588235294117645) internal successors, (70), 34 states have internal predecessors, (70), 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) [2023-02-17 09:17:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2023-02-17 09:17:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-02-17 09:17:02,615 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:02,615 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:02,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-17 09:17:02,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:02,816 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:02,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:02,817 INFO L85 PathProgramCache]: Analyzing trace with hash -778345521, now seen corresponding path program 3 times [2023-02-17 09:17:02,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:02,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942871638] [2023-02-17 09:17:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:02,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:03,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:03,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942871638] [2023-02-17 09:17:03,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942871638] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:03,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611832235] [2023-02-17 09:17:03,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:17:03,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:03,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:03,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:17:03,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 09:17:03,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2023-02-17 09:17:03,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:03,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-17 09:17:03,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:03,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:04,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611832235] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:04,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:04,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2023-02-17 09:17:04,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734786524] [2023-02-17 09:17:04,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:04,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-02-17 09:17:04,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:04,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-02-17 09:17:04,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2023-02-17 09:17:04,606 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 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) [2023-02-17 09:17:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:05,297 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2023-02-17 09:17:05,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-17 09:17:05,298 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 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 67 [2023-02-17 09:17:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:05,299 INFO L225 Difference]: With dead ends: 137 [2023-02-17 09:17:05,299 INFO L226 Difference]: Without dead ends: 132 [2023-02-17 09:17:05,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 86 SyntacticMatches, 15 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2364 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2023-02-17 09:17:05,302 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 200 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:05,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 48 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:17:05,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-02-17 09:17:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-02-17 09:17:05,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.015267175572519) internal successors, (133), 131 states have internal predecessors, (133), 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) [2023-02-17 09:17:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2023-02-17 09:17:05,311 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 67 [2023-02-17 09:17:05,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:05,311 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2023-02-17 09:17:05,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0303030303030303) internal successors, (134), 66 states have internal predecessors, (134), 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) [2023-02-17 09:17:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2023-02-17 09:17:05,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-02-17 09:17:05,313 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:05,313 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:05,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:05,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:05,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:05,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:05,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1339077745, now seen corresponding path program 4 times [2023-02-17 09:17:05,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:05,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285571032] [2023-02-17 09:17:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:05,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:07,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:07,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:07,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285571032] [2023-02-17 09:17:07,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285571032] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:07,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727470438] [2023-02-17 09:17:07,989 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:17:07,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:07,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:07,991 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:17:07,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 09:17:08,103 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:17:08,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:08,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-17 09:17:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:08,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:11,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727470438] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:11,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:11,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2023-02-17 09:17:11,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270298164] [2023-02-17 09:17:11,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:11,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-02-17 09:17:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-02-17 09:17:11,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-02-17 09:17:11,325 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand has 130 states, 130 states have (on average 2.0153846153846153) internal successors, (262), 130 states have internal predecessors, (262), 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) [2023-02-17 09:17:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:13,476 INFO L93 Difference]: Finished difference Result 265 states and 298 transitions. [2023-02-17 09:17:13,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-17 09:17:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0153846153846153) internal successors, (262), 130 states have internal predecessors, (262), 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 131 [2023-02-17 09:17:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:13,478 INFO L225 Difference]: With dead ends: 265 [2023-02-17 09:17:13,478 INFO L226 Difference]: Without dead ends: 260 [2023-02-17 09:17:13,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 166 SyntacticMatches, 31 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9604 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2023-02-17 09:17:13,495 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 458 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:13,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 121 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 09:17:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-02-17 09:17:13,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2023-02-17 09:17:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.0077220077220077) internal successors, (261), 259 states have internal predecessors, (261), 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) [2023-02-17 09:17:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 261 transitions. [2023-02-17 09:17:13,507 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 261 transitions. Word has length 131 [2023-02-17 09:17:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:13,508 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 261 transitions. [2023-02-17 09:17:13,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0153846153846153) internal successors, (262), 130 states have internal predecessors, (262), 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) [2023-02-17 09:17:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 261 transitions. [2023-02-17 09:17:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-02-17 09:17:13,511 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:13,511 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:13,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:13,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:13,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:17:13,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:13,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1409096463, now seen corresponding path program 5 times [2023-02-17 09:17:13,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:13,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615827161] [2023-02-17 09:17:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:13,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:21,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:21,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615827161] [2023-02-17 09:17:21,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615827161] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:21,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433019754] [2023-02-17 09:17:21,011 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:17:21,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:21,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:21,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:17:21,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 09:19:43,083 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2023-02-17 09:19:43,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:19:43,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 128 conjunts are in the unsatisfiable core [2023-02-17 09:19:43,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:19:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:19:45,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:19:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:19:55,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433019754] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:19:55,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:19:55,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2023-02-17 09:19:55,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688712658] [2023-02-17 09:19:55,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:19:55,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2023-02-17 09:19:55,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:19:55,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2023-02-17 09:19:55,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2023-02-17 09:19:55,374 INFO L87 Difference]: Start difference. First operand 260 states and 261 transitions. Second operand has 258 states, 258 states have (on average 2.007751937984496) internal successors, (518), 258 states have internal predecessors, (518), 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) [2023-02-17 09:20:04,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:20:04,659 INFO L93 Difference]: Finished difference Result 521 states and 586 transitions. [2023-02-17 09:20:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-17 09:20:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.007751937984496) internal successors, (518), 258 states have internal predecessors, (518), 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 259 [2023-02-17 09:20:04,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:20:04,663 INFO L225 Difference]: With dead ends: 521 [2023-02-17 09:20:04,663 INFO L226 Difference]: Without dead ends: 516 [2023-02-17 09:20:04,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 326 SyntacticMatches, 63 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38676 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2023-02-17 09:20:04,673 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1370 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-17 09:20:04,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 96 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-17 09:20:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2023-02-17 09:20:04,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2023-02-17 09:20:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.003883495145631) internal successors, (517), 515 states have internal predecessors, (517), 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) [2023-02-17 09:20:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 517 transitions. [2023-02-17 09:20:04,689 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 517 transitions. Word has length 259 [2023-02-17 09:20:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:20:04,690 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 517 transitions. [2023-02-17 09:20:04,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.007751937984496) internal successors, (518), 258 states have internal predecessors, (518), 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) [2023-02-17 09:20:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 517 transitions. [2023-02-17 09:20:04,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2023-02-17 09:20:04,696 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:20:04,697 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:20:04,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 09:20:04,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:20:04,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-17 09:20:04,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:20:04,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1982904847, now seen corresponding path program 6 times [2023-02-17 09:20:04,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:20:04,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107192694] [2023-02-17 09:20:04,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:20:04,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:20:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:20:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 32131 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:20:31,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:20:31,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107192694] [2023-02-17 09:20:31,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107192694] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:20:31,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224562873] [2023-02-17 09:20:31,565 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:20:31,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:20:31,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:20:31,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:20:31,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process