./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/recursive/Addition03-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:06:16,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:06:16,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:06:16,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:06:16,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:06:16,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:06:16,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:06:16,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:06:16,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:06:16,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:06:16,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:06:16,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:06:16,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:06:16,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:06:16,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:06:16,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:06:16,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:06:16,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:06:16,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:06:16,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:06:16,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:06:16,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:06:16,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:06:16,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:06:16,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:06:16,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:06:16,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:06:16,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:06:16,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:06:16,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:06:16,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:06:16,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:06:16,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:06:16,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:06:16,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:06:16,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:06:16,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:06:16,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:06:16,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:06:16,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:06:16,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:06:16,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-17 09:06:16,480 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:06:16,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:06:16,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:06:16,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:06:16,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 09:06:16,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 09:06:16,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:06:16,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:06:16,483 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:06:16,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:06:16,484 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 09:06:16,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:06:16,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:06:16,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 09:06:16,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:06:16,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 09:06:16,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 09:06:16,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 09:06:16,485 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 09:06:16,486 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 09:06:16,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:06:16,486 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:06:16,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 09:06:16,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:06:16,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:06:16,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 09:06:16,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:06:16,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:06:16,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 09:06:16,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 09:06:16,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:06:16,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 09:06:16,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 09:06:16,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 09:06:16,489 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 09:06:16,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 09:06:16,500 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 09:06:16,501 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2023-02-17 09:06:16,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:06:16,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:06:16,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:06:16,779 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:06:16,779 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:06:16,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2023-02-17 09:06:17,951 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:06:18,106 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:06:18,107 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2023-02-17 09:06:18,111 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fd33a726/88a6ef78b0db413db4c6c9010f369037/FLAGe2d3506b9 [2023-02-17 09:06:18,126 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fd33a726/88a6ef78b0db413db4c6c9010f369037 [2023-02-17 09:06:18,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:06:18,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:06:18,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:06:18,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:06:18,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:06:18,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c952c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18, skipping insertion in model container [2023-02-17 09:06:18,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:06:18,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:06:18,279 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2023-02-17 09:06:18,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:06:18,290 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:06:18,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2023-02-17 09:06:18,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:06:18,326 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:06:18,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18 WrapperNode [2023-02-17 09:06:18,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:06:18,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:06:18,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:06:18,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:06:18,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,354 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-17 09:06:18,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:06:18,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:06:18,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:06:18,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:06:18,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,378 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:06:18,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:06:18,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:06:18,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:06:18,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (1/1) ... [2023-02-17 09:06:18,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:06:18,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:18,431 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 09:06:18,433 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 09:06:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 09:06:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:06:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:06:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 09:06:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-02-17 09:06:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-02-17 09:06:18,532 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:06:18,534 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:06:18,708 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:06:18,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:06:18,716 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 09:06:18,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:06:18 BoogieIcfgContainer [2023-02-17 09:06:18,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:06:18,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 09:06:18,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 09:06:18,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 09:06:18,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 09:06:18" (1/3) ... [2023-02-17 09:06:18,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2d54ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:06:18, skipping insertion in model container [2023-02-17 09:06:18,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:06:18" (2/3) ... [2023-02-17 09:06:18,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2d54ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:06:18, skipping insertion in model container [2023-02-17 09:06:18,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:06:18" (3/3) ... [2023-02-17 09:06:18,727 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2023-02-17 09:06:18,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 09:06:18,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-17 09:06:18,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 09:06:18,802 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;@5260689c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 09:06:18,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-17 09:06:18,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-17 09:06:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 09:06:18,815 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:18,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:18,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2023-02-17 09:06:18,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:18,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100887798] [2023-02-17 09:06:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:18,994 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 09:06:18,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:18,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100887798] [2023-02-17 09:06:18,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100887798] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:18,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:18,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:06:18,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263137203] [2023-02-17 09:06:18,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:19,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:06:19,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:19,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:06:19,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:06:19,038 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:19,236 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2023-02-17 09:06:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:06:19,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 09:06:19,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:19,245 INFO L225 Difference]: With dead ends: 64 [2023-02-17 09:06:19,245 INFO L226 Difference]: Without dead ends: 45 [2023-02-17 09:06:19,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:06:19,251 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:19,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:06:19,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-17 09:06:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2023-02-17 09:06:19,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-02-17 09:06:19,335 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2023-02-17 09:06:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:19,336 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-02-17 09:06:19,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,336 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-02-17 09:06:19,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 09:06:19,338 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:19,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:19,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 09:06:19,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:19,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:19,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2023-02-17 09:06:19,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:19,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400735827] [2023-02-17 09:06:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:19,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:19,443 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 09:06:19,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:19,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400735827] [2023-02-17 09:06:19,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400735827] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:19,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:19,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:06:19,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457918778] [2023-02-17 09:06:19,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:19,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:06:19,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:19,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:06:19,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:06:19,449 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:19,512 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2023-02-17 09:06:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:06:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-17 09:06:19,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:19,514 INFO L225 Difference]: With dead ends: 67 [2023-02-17 09:06:19,516 INFO L226 Difference]: Without dead ends: 65 [2023-02-17 09:06:19,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:06:19,518 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:19,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:06:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-17 09:06:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2023-02-17 09:06:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2023-02-17 09:06:19,534 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2023-02-17 09:06:19,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:19,535 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2023-02-17 09:06:19,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,535 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2023-02-17 09:06:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 09:06:19,536 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:19,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:19,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 09:06:19,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:19,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:19,542 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2023-02-17 09:06:19,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:19,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965484319] [2023-02-17 09:06:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:19,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:19,580 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 09:06:19,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:19,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965484319] [2023-02-17 09:06:19,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965484319] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:19,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:19,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:06:19,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679138389] [2023-02-17 09:06:19,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:19,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:06:19,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:19,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:06:19,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:06:19,584 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:19,600 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2023-02-17 09:06:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:06:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-17 09:06:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:19,602 INFO L225 Difference]: With dead ends: 53 [2023-02-17 09:06:19,602 INFO L226 Difference]: Without dead ends: 52 [2023-02-17 09:06:19,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:06:19,604 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:19,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 29 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:06:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-17 09:06:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-02-17 09:06:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2023-02-17 09:06:19,617 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 9 [2023-02-17 09:06:19,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:19,618 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2023-02-17 09:06:19,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2023-02-17 09:06:19,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 09:06:19,619 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:19,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:19,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 09:06:19,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:19,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash -615338830, now seen corresponding path program 1 times [2023-02-17 09:06:19,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:19,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137662851] [2023-02-17 09:06:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:19,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:19,682 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 09:06:19,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:19,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137662851] [2023-02-17 09:06:19,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137662851] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:19,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:19,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:06:19,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138760874] [2023-02-17 09:06:19,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:19,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:06:19,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:19,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:06:19,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:06:19,685 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:19,726 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2023-02-17 09:06:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:06:19,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 09:06:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:19,728 INFO L225 Difference]: With dead ends: 63 [2023-02-17 09:06:19,728 INFO L226 Difference]: Without dead ends: 62 [2023-02-17 09:06:19,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:06:19,733 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:19,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 48 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:06:19,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-02-17 09:06:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2023-02-17 09:06:19,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2023-02-17 09:06:19,751 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 10 [2023-02-17 09:06:19,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:19,753 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2023-02-17 09:06:19,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2023-02-17 09:06:19,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 09:06:19,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:19,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:19,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 09:06:19,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:19,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:19,755 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2023-02-17 09:06:19,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:19,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642959454] [2023-02-17 09:06:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:19,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:19,797 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 09:06:19,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:19,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642959454] [2023-02-17 09:06:19,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642959454] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:19,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:19,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:06:19,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307989049] [2023-02-17 09:06:19,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:19,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:06:19,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:19,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:06:19,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:06:19,800 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:19,854 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2023-02-17 09:06:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:06:19,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-17 09:06:19,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:19,855 INFO L225 Difference]: With dead ends: 64 [2023-02-17 09:06:19,856 INFO L226 Difference]: Without dead ends: 62 [2023-02-17 09:06:19,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:06:19,859 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:19,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 46 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:06:19,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-02-17 09:06:19,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2023-02-17 09:06:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-02-17 09:06:19,874 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 10 [2023-02-17 09:06:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:19,874 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-02-17 09:06:19,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:19,875 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-02-17 09:06:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 09:06:19,875 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:19,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:19,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 09:06:19,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1868280031, now seen corresponding path program 1 times [2023-02-17 09:06:19,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:19,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893107618] [2023-02-17 09:06:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:19,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:19,953 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 09:06:19,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:19,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893107618] [2023-02-17 09:06:19,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893107618] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:19,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393527297] [2023-02-17 09:06:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:19,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:19,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:19,961 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 09:06:19,974 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 09:06:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:20,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:06:20,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:20,085 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 09:06:20,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:20,153 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 09:06:20,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393527297] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:20,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:20,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-17 09:06:20,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907479920] [2023-02-17 09:06:20,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:20,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-17 09:06:20,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:20,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-17 09:06:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-17 09:06:20,157 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:20,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:20,304 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2023-02-17 09:06:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-17 09:06:20,305 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-17 09:06:20,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:20,307 INFO L225 Difference]: With dead ends: 133 [2023-02-17 09:06:20,307 INFO L226 Difference]: Without dead ends: 131 [2023-02-17 09:06:20,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2023-02-17 09:06:20,317 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 168 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:20,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 105 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:06:20,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-02-17 09:06:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 78. [2023-02-17 09:06:20,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 70 states have internal predecessors, (83), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:20,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2023-02-17 09:06:20,336 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 16 [2023-02-17 09:06:20,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:20,337 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2023-02-17 09:06:20,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:20,337 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2023-02-17 09:06:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 09:06:20,338 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:20,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:20,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 09:06:20,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-17 09:06:20,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:20,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:20,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1957530120, now seen corresponding path program 1 times [2023-02-17 09:06:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:20,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204050102] [2023-02-17 09:06:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:20,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:20,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:20,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204050102] [2023-02-17 09:06:20,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204050102] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:20,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823235912] [2023-02-17 09:06:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:20,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:20,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:20,629 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 09:06:20,632 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 09:06:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:20,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:06:20,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:20,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:20,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823235912] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:20,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:20,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-17 09:06:20,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103717483] [2023-02-17 09:06:20,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:20,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-17 09:06:20,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:20,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-17 09:06:20,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-17 09:06:20,741 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:20,863 INFO L93 Difference]: Finished difference Result 232 states and 280 transitions. [2023-02-17 09:06:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-17 09:06:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-17 09:06:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:20,865 INFO L225 Difference]: With dead ends: 232 [2023-02-17 09:06:20,866 INFO L226 Difference]: Without dead ends: 230 [2023-02-17 09:06:20,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-02-17 09:06:20,868 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 206 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:20,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 138 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:06:20,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-02-17 09:06:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 187. [2023-02-17 09:06:20,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 161 states have (on average 1.2608695652173914) internal successors, (203), 167 states have internal predecessors, (203), 21 states have call successors, (21), 19 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 224 transitions. [2023-02-17 09:06:20,902 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 224 transitions. Word has length 16 [2023-02-17 09:06:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:20,903 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 224 transitions. [2023-02-17 09:06:20,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:20,903 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 224 transitions. [2023-02-17 09:06:20,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 09:06:20,904 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:20,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:20,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-17 09:06:21,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-17 09:06:21,113 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:21,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1299669, now seen corresponding path program 1 times [2023-02-17 09:06:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:21,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877955426] [2023-02-17 09:06:21,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:21,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:21,164 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 09:06:21,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:21,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877955426] [2023-02-17 09:06:21,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877955426] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:21,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:21,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:06:21,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260284796] [2023-02-17 09:06:21,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:21,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:06:21,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:21,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:06:21,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:06:21,167 INFO L87 Difference]: Start difference. First operand 187 states and 224 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:21,203 INFO L93 Difference]: Finished difference Result 259 states and 310 transitions. [2023-02-17 09:06:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:06:21,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-17 09:06:21,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:21,205 INFO L225 Difference]: With dead ends: 259 [2023-02-17 09:06:21,205 INFO L226 Difference]: Without dead ends: 132 [2023-02-17 09:06:21,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-17 09:06:21,211 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:21,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:06:21,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-02-17 09:06:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 97. [2023-02-17 09:06:21,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.1204819277108433) internal successors, (93), 85 states have internal predecessors, (93), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2023-02-17 09:06:21,220 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 18 [2023-02-17 09:06:21,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:21,220 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2023-02-17 09:06:21,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,221 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2023-02-17 09:06:21,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-17 09:06:21,221 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:21,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:06:21,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-17 09:06:21,222 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:21,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:21,223 INFO L85 PathProgramCache]: Analyzing trace with hash 550841017, now seen corresponding path program 1 times [2023-02-17 09:06:21,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:21,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727482048] [2023-02-17 09:06:21,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:21,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:21,262 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 09:06:21,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:21,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727482048] [2023-02-17 09:06:21,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727482048] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:06:21,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:06:21,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:06:21,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351901986] [2023-02-17 09:06:21,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:06:21,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:06:21,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:06:21,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:06:21,265 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:21,301 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2023-02-17 09:06:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:06:21,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-17 09:06:21,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:21,303 INFO L225 Difference]: With dead ends: 98 [2023-02-17 09:06:21,303 INFO L226 Difference]: Without dead ends: 97 [2023-02-17 09:06:21,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-17 09:06:21,305 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:21,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 51 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:06:21,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-17 09:06:21,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2023-02-17 09:06:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 54 states have internal predecessors, (58), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2023-02-17 09:06:21,311 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 19 [2023-02-17 09:06:21,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:21,311 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2023-02-17 09:06:21,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2023-02-17 09:06:21,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 09:06:21,317 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:21,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-17 09:06:21,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-17 09:06:21,317 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:21,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1477389264, now seen corresponding path program 1 times [2023-02-17 09:06:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:21,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846876289] [2023-02-17 09:06:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:21,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:21,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:21,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846876289] [2023-02-17 09:06:21,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846876289] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:21,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275604581] [2023-02-17 09:06:21,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:21,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:21,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:21,430 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 09:06:21,432 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 09:06:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:21,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 09:06:21,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:21,513 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:21,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:21,595 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:21,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275604581] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:21,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:21,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-17 09:06:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498866091] [2023-02-17 09:06:21,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:21,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-17 09:06:21,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:21,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-17 09:06:21,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-02-17 09:06:21,598 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:21,757 INFO L93 Difference]: Finished difference Result 209 states and 219 transitions. [2023-02-17 09:06:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-17 09:06:21,758 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-17 09:06:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:21,760 INFO L225 Difference]: With dead ends: 209 [2023-02-17 09:06:21,760 INFO L226 Difference]: Without dead ends: 208 [2023-02-17 09:06:21,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 37 SyntacticMatches, 7 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-02-17 09:06:21,761 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 211 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:21,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 145 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:06:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-02-17 09:06:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 98. [2023-02-17 09:06:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.1058823529411765) internal successors, (94), 86 states have internal predecessors, (94), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2023-02-17 09:06:21,771 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 26 [2023-02-17 09:06:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:21,774 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2023-02-17 09:06:21,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2023-02-17 09:06:21,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-17 09:06:21,776 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:21,777 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-17 09:06:21,784 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 09:06:21,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:21,985 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash -591358287, now seen corresponding path program 2 times [2023-02-17 09:06:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:21,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640156817] [2023-02-17 09:06:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:22,111 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:22,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:22,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640156817] [2023-02-17 09:06:22,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640156817] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:22,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957479035] [2023-02-17 09:06:22,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:06:22,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:22,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:22,113 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 09:06:22,116 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 09:06:22,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:06:22,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:22,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 09:06:22,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:22,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:22,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957479035] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:22,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:22,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-17 09:06:22,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697433597] [2023-02-17 09:06:22,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:22,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 09:06:22,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 09:06:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-02-17 09:06:22,353 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:22,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:22,524 INFO L93 Difference]: Finished difference Result 150 states and 162 transitions. [2023-02-17 09:06:22,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-17 09:06:22,524 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-02-17 09:06:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:22,525 INFO L225 Difference]: With dead ends: 150 [2023-02-17 09:06:22,526 INFO L226 Difference]: Without dead ends: 149 [2023-02-17 09:06:22,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 64 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2023-02-17 09:06:22,527 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 204 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:22,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 122 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:06:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-17 09:06:22,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2023-02-17 09:06:22,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.0708661417322836) internal successors, (136), 128 states have internal predecessors, (136), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:22,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 153 transitions. [2023-02-17 09:06:22,537 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 153 transitions. Word has length 40 [2023-02-17 09:06:22,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:22,537 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 153 transitions. [2023-02-17 09:06:22,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 153 transitions. [2023-02-17 09:06:22,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-17 09:06:22,539 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:22,539 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2023-02-17 09:06:22,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 09:06:22,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:22,745 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:22,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:22,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1145769136, now seen corresponding path program 2 times [2023-02-17 09:06:22,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:22,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836233858] [2023-02-17 09:06:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:22,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:22,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:22,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836233858] [2023-02-17 09:06:22,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836233858] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:22,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824525883] [2023-02-17 09:06:22,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:06:22,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:22,957 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 09:06:22,983 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 09:06:23,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:06:23,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:23,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 09:06:23,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:23,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:23,321 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:23,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824525883] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:23,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:23,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-17 09:06:23,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871137014] [2023-02-17 09:06:23,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:23,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-17 09:06:23,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:23,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-17 09:06:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2023-02-17 09:06:23,324 INFO L87 Difference]: Start difference. First operand 146 states and 153 transitions. Second operand has 32 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 18 states have internal predecessors, (109), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:23,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:23,690 INFO L93 Difference]: Finished difference Result 689 states and 711 transitions. [2023-02-17 09:06:23,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-17 09:06:23,690 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 18 states have internal predecessors, (109), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-02-17 09:06:23,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:23,694 INFO L225 Difference]: With dead ends: 689 [2023-02-17 09:06:23,694 INFO L226 Difference]: Without dead ends: 688 [2023-02-17 09:06:23,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 93 SyntacticMatches, 15 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2023-02-17 09:06:23,696 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 605 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:23,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 273 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:06:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-02-17 09:06:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 218. [2023-02-17 09:06:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 191 states have (on average 1.0890052356020943) internal successors, (208), 192 states have internal predecessors, (208), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2023-02-17 09:06:23,714 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 62 [2023-02-17 09:06:23,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:23,715 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2023-02-17 09:06:23,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 18 states have internal predecessors, (109), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2023-02-17 09:06:23,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-02-17 09:06:23,717 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:23,717 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-17 09:06:23,727 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 09:06:23,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-17 09:06:23,923 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:23,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:23,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2121543427, now seen corresponding path program 3 times [2023-02-17 09:06:23,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:23,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199380238] [2023-02-17 09:06:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:23,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:24,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:24,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199380238] [2023-02-17 09:06:24,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199380238] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:24,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109408064] [2023-02-17 09:06:24,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:06:24,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:24,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:24,281 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 09:06:24,293 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 09:06:24,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-17 09:06:24,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:24,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-17 09:06:24,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:24,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:24,911 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:24,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109408064] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:24,911 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:24,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-17 09:06:24,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881138580] [2023-02-17 09:06:24,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:24,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-17 09:06:24,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:24,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-17 09:06:24,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-02-17 09:06:24,914 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:25,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:25,394 INFO L93 Difference]: Finished difference Result 318 states and 344 transitions. [2023-02-17 09:06:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-17 09:06:25,395 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-02-17 09:06:25,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:25,396 INFO L225 Difference]: With dead ends: 318 [2023-02-17 09:06:25,397 INFO L226 Difference]: Without dead ends: 317 [2023-02-17 09:06:25,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 142 SyntacticMatches, 10 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2023-02-17 09:06:25,399 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 505 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:25,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 220 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:06:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-02-17 09:06:25,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 314. [2023-02-17 09:06:25,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 275 states have (on average 1.0618181818181818) internal successors, (292), 276 states have internal predecessors, (292), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 329 transitions. [2023-02-17 09:06:25,416 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 329 transitions. Word has length 88 [2023-02-17 09:06:25,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:25,417 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 329 transitions. [2023-02-17 09:06:25,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 329 transitions. [2023-02-17 09:06:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-02-17 09:06:25,418 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:25,419 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2023-02-17 09:06:25,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-17 09:06:25,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:25,625 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:25,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:25,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1196900944, now seen corresponding path program 3 times [2023-02-17 09:06:25,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:25,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859646319] [2023-02-17 09:06:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:26,430 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:26,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:26,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859646319] [2023-02-17 09:06:26,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859646319] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:26,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728442072] [2023-02-17 09:06:26,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:06:26,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:26,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:26,433 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 09:06:26,435 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 09:06:26,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-17 09:06:26,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:26,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-17 09:06:26,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:26,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:27,687 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:27,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728442072] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:27,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:27,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2023-02-17 09:06:27,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701166769] [2023-02-17 09:06:27,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:27,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-17 09:06:27,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:27,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-17 09:06:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=3036, Unknown=0, NotChecked=0, Total=4032 [2023-02-17 09:06:27,692 INFO L87 Difference]: Start difference. First operand 314 states and 329 transitions. Second operand has 64 states, 61 states have (on average 3.8852459016393444) internal successors, (237), 34 states have internal predecessors, (237), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:28,826 INFO L93 Difference]: Finished difference Result 2417 states and 2463 transitions. [2023-02-17 09:06:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-02-17 09:06:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 61 states have (on average 3.8852459016393444) internal successors, (237), 34 states have internal predecessors, (237), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-02-17 09:06:28,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:28,835 INFO L225 Difference]: With dead ends: 2417 [2023-02-17 09:06:28,835 INFO L226 Difference]: Without dead ends: 2416 [2023-02-17 09:06:28,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 205 SyntacticMatches, 31 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2385 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2484, Invalid=6446, Unknown=0, NotChecked=0, Total=8930 [2023-02-17 09:06:28,840 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1417 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:28,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 543 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 09:06:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2023-02-17 09:06:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 458. [2023-02-17 09:06:28,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 403 states have (on average 1.0818858560794045) internal successors, (436), 404 states have internal predecessors, (436), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 489 transitions. [2023-02-17 09:06:28,880 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 489 transitions. Word has length 134 [2023-02-17 09:06:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:28,880 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 489 transitions. [2023-02-17 09:06:28,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 61 states have (on average 3.8852459016393444) internal successors, (237), 34 states have internal predecessors, (237), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:28,881 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 489 transitions. [2023-02-17 09:06:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-02-17 09:06:28,887 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:28,887 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-17 09:06:28,899 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 09:06:29,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:29,099 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:29,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1760385959, now seen corresponding path program 4 times [2023-02-17 09:06:29,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:29,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267264701] [2023-02-17 09:06:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:29,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:30,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267264701] [2023-02-17 09:06:30,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267264701] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:30,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024483315] [2023-02-17 09:06:30,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:06:30,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:30,421 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 09:06:30,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-17 09:06:30,499 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:06:30,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:30,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-17 09:06:30,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:30,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:32,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024483315] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:32,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:32,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-17 09:06:32,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556023894] [2023-02-17 09:06:32,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:32,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-17 09:06:32,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:32,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-17 09:06:32,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-02-17 09:06:32,425 INFO L87 Difference]: Start difference. First operand 458 states and 489 transitions. Second operand has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:34,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:34,005 INFO L93 Difference]: Finished difference Result 654 states and 708 transitions. [2023-02-17 09:06:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-17 09:06:34,006 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2023-02-17 09:06:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:34,008 INFO L225 Difference]: With dead ends: 654 [2023-02-17 09:06:34,008 INFO L226 Difference]: Without dead ends: 653 [2023-02-17 09:06:34,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 298 SyntacticMatches, 22 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4855 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2023-02-17 09:06:34,015 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1408 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:34,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 402 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:06:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-02-17 09:06:34,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 650. [2023-02-17 09:06:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 571 states have (on average 1.0577933450087567) internal successors, (604), 572 states have internal predecessors, (604), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 681 transitions. [2023-02-17 09:06:34,053 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 681 transitions. Word has length 184 [2023-02-17 09:06:34,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:34,054 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 681 transitions. [2023-02-17 09:06:34,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 681 transitions. [2023-02-17 09:06:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-02-17 09:06:34,059 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:34,059 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1] [2023-02-17 09:06:34,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-17 09:06:34,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-17 09:06:34,264 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:34,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:34,264 INFO L85 PathProgramCache]: Analyzing trace with hash 864624560, now seen corresponding path program 4 times [2023-02-17 09:06:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:34,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692029294] [2023-02-17 09:06:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:34,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4065 backedges. 0 proven. 4065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:36,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:36,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692029294] [2023-02-17 09:06:36,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692029294] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:36,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244029381] [2023-02-17 09:06:36,343 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:06:36,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:36,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:36,349 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:06:36,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-17 09:06:36,454 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:06:36,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:36,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-17 09:06:36,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4065 backedges. 0 proven. 4065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:37,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4065 backedges. 0 proven. 4065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:40,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244029381] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:40,252 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:40,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2023-02-17 09:06:40,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185371684] [2023-02-17 09:06:40,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:40,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-17 09:06:40,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-17 09:06:40,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4036, Invalid=12220, Unknown=0, NotChecked=0, Total=16256 [2023-02-17 09:06:40,260 INFO L87 Difference]: Start difference. First operand 650 states and 681 transitions. Second operand has 128 states, 125 states have (on average 3.944) internal successors, (493), 66 states have internal predecessors, (493), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:44,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:06:44,537 INFO L93 Difference]: Finished difference Result 8945 states and 9039 transitions. [2023-02-17 09:06:44,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-02-17 09:06:44,541 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 125 states have (on average 3.944) internal successors, (493), 66 states have internal predecessors, (493), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2023-02-17 09:06:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:06:44,597 INFO L225 Difference]: With dead ends: 8945 [2023-02-17 09:06:44,598 INFO L226 Difference]: Without dead ends: 8944 [2023-02-17 09:06:44,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 429 SyntacticMatches, 63 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10385 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=10084, Invalid=26206, Unknown=0, NotChecked=0, Total=36290 [2023-02-17 09:06:44,604 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4577 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-17 09:06:44,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 1060 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-17 09:06:44,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8944 states. [2023-02-17 09:06:44,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8944 to 938. [2023-02-17 09:06:44,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 827 states have (on average 1.0785973397823458) internal successors, (892), 828 states have internal predecessors, (892), 109 states have call successors, (109), 109 states have call predecessors, (109), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1001 transitions. [2023-02-17 09:06:44,715 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1001 transitions. Word has length 278 [2023-02-17 09:06:44,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:06:44,715 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1001 transitions. [2023-02-17 09:06:44,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 125 states have (on average 3.944) internal successors, (493), 66 states have internal predecessors, (493), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:06:44,716 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1001 transitions. [2023-02-17 09:06:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-02-17 09:06:44,721 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:06:44,721 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2023-02-17 09:06:44,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-17 09:06:44,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-17 09:06:44,928 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:06:44,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:06:44,929 INFO L85 PathProgramCache]: Analyzing trace with hash 151495919, now seen corresponding path program 5 times [2023-02-17 09:06:44,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:06:44,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970088777] [2023-02-17 09:06:44,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:06:44,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:06:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:06:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:49,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:06:49,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970088777] [2023-02-17 09:06:49,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970088777] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:06:49,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778737525] [2023-02-17 09:06:49,480 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:06:49,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:06:49,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:06:49,481 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:06:49,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-17 09:06:49,679 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-17 09:06:49,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:06:49,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-17 09:06:49,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:06:50,881 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:50,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:06:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:06:56,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778737525] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:06:56,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:06:56,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-17 09:06:56,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458179972] [2023-02-17 09:06:56,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:06:56,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-17 09:06:56,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:06:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-17 09:06:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-02-17 09:06:56,791 INFO L87 Difference]: Start difference. First operand 938 states and 1001 transitions. Second operand has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:07:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:07:03,238 INFO L93 Difference]: Finished difference Result 1326 states and 1436 transitions. [2023-02-17 09:07:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-17 09:07:03,238 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2023-02-17 09:07:03,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:07:03,242 INFO L225 Difference]: With dead ends: 1326 [2023-02-17 09:07:03,243 INFO L226 Difference]: Without dead ends: 1325 [2023-02-17 09:07:03,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 610 SyntacticMatches, 46 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20635 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2023-02-17 09:07:03,253 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3543 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-17 09:07:03,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 794 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-17 09:07:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2023-02-17 09:07:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1322. [2023-02-17 09:07:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1163 states have (on average 1.0558899398108341) internal successors, (1228), 1164 states have internal predecessors, (1228), 157 states have call successors, (157), 157 states have call predecessors, (157), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:07:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1385 transitions. [2023-02-17 09:07:03,334 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1385 transitions. Word has length 376 [2023-02-17 09:07:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:07:03,335 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1385 transitions. [2023-02-17 09:07:03,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:07:03,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1385 transitions. [2023-02-17 09:07:03,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-02-17 09:07:03,346 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:07:03,347 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1] [2023-02-17 09:07:03,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-17 09:07:03,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-17 09:07:03,555 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:07:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:07:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash 232645552, now seen corresponding path program 5 times [2023-02-17 09:07:03,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:07:03,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687346645] [2023-02-17 09:07:03,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:07:03,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:07:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:07:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 17329 backedges. 0 proven. 17329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:07:11,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:07:11,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687346645] [2023-02-17 09:07:11,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687346645] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:07:11,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672183003] [2023-02-17 09:07:11,783 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:07:11,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:07:11,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:07:11,784 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:07:11,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-17 09:07:12,056 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2023-02-17 09:07:12,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:07:12,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 128 conjunts are in the unsatisfiable core [2023-02-17 09:07:12,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:07:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 17329 backedges. 0 proven. 17329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:07:16,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:07:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 17329 backedges. 0 proven. 17329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:07:26,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672183003] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:07:26,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:07:26,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2023-02-17 09:07:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903878903] [2023-02-17 09:07:26,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:07:26,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-17 09:07:26,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:07:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-17 09:07:26,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16260, Invalid=49020, Unknown=0, NotChecked=0, Total=65280 [2023-02-17 09:07:26,824 INFO L87 Difference]: Start difference. First operand 1322 states and 1385 transitions. Second operand has 256 states, 253 states have (on average 3.972332015810277) internal successors, (1005), 130 states have internal predecessors, (1005), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:07:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:07:52,593 INFO L93 Difference]: Finished difference Result 34289 states and 34479 transitions. [2023-02-17 09:07:52,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2023-02-17 09:07:52,594 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 253 states have (on average 3.972332015810277) internal successors, (1005), 130 states have internal predecessors, (1005), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 566 [2023-02-17 09:07:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:07:52,692 INFO L225 Difference]: With dead ends: 34289 [2023-02-17 09:07:52,693 INFO L226 Difference]: Without dead ends: 34288 [2023-02-17 09:07:52,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1385 GetRequests, 877 SyntacticMatches, 127 SemanticMatches, 381 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43281 ImplicationChecksByTransitivity, 26.1s TimeCoverageRelationStatistics Valid=40644, Invalid=105662, Unknown=0, NotChecked=0, Total=146306 [2023-02-17 09:07:52,716 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10485 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10485 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:07:52,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10485 Valid, 2093 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-17 09:07:52,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34288 states. [2023-02-17 09:07:53,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34288 to 1898. [2023-02-17 09:07:53,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1675 states have (on average 1.0770149253731343) internal successors, (1804), 1676 states have internal predecessors, (1804), 221 states have call successors, (221), 221 states have call predecessors, (221), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:07:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2025 transitions. [2023-02-17 09:07:53,157 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2025 transitions. Word has length 566 [2023-02-17 09:07:53,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:07:53,159 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2025 transitions. [2023-02-17 09:07:53,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 253 states have (on average 3.972332015810277) internal successors, (1005), 130 states have internal predecessors, (1005), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:07:53,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2025 transitions. [2023-02-17 09:07:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2023-02-17 09:07:53,168 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:07:53,168 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2023-02-17 09:07:53,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-17 09:07:53,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-17 09:07:53,376 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:07:53,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:07:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1826355071, now seen corresponding path program 6 times [2023-02-17 09:07:53,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:07:53,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249501627] [2023-02-17 09:07:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:07:53,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:07:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:08:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:08:11,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:08:11,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249501627] [2023-02-17 09:08:11,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249501627] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:08:11,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102075628] [2023-02-17 09:08:11,308 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:08:11,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:08:11,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:08:11,309 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:08:11,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-17 09:08:11,757 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-17 09:08:11,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:08:11,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-17 09:08:11,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:08:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:08:16,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:08:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:08:39,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102075628] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:08:39,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:08:39,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-17 09:08:39,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984878201] [2023-02-17 09:08:39,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:08:39,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-17 09:08:39,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:08:39,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-17 09:08:39,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-02-17 09:08:39,537 INFO L87 Difference]: Start difference. First operand 1898 states and 2025 transitions. Second operand has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:09:22,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:09:22,544 INFO L93 Difference]: Finished difference Result 2670 states and 2892 transitions. [2023-02-17 09:09:22,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-17 09:09:22,545 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 760 [2023-02-17 09:09:22,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:09:22,551 INFO L225 Difference]: With dead ends: 2670 [2023-02-17 09:09:22,551 INFO L226 Difference]: Without dead ends: 2669 [2023-02-17 09:09:22,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1900 GetRequests, 1234 SyntacticMatches, 94 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85027 ImplicationChecksByTransitivity, 52.0s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2023-02-17 09:09:22,569 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6945 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6945 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:09:22,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6945 Valid, 1586 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-17 09:09:22,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2023-02-17 09:09:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2666. [2023-02-17 09:09:22,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2347 states have (on average 1.0549637835534724) internal successors, (2476), 2348 states have internal predecessors, (2476), 317 states have call successors, (317), 317 states have call predecessors, (317), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:09:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 2793 transitions. [2023-02-17 09:09:22,819 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 2793 transitions. Word has length 760 [2023-02-17 09:09:22,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:09:22,820 INFO L495 AbstractCegarLoop]: Abstraction has 2666 states and 2793 transitions. [2023-02-17 09:09:22,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:09:22,821 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 2793 transitions. [2023-02-17 09:09:22,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2023-02-17 09:09:22,834 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:09:22,835 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 126, 126, 126, 126, 1, 1, 1, 1] [2023-02-17 09:09:22,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-17 09:09:23,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:09:23,042 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-17 09:09:23,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:09:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash 886533040, now seen corresponding path program 6 times [2023-02-17 09:09:23,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:09:23,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99762528] [2023-02-17 09:09:23,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:09:23,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:09:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:10:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 71505 backedges. 0 proven. 71505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:10:01,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:10:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99762528] [2023-02-17 09:10:01,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99762528] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:10:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602644601] [2023-02-17 09:10:01,918 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:10:01,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:10:01,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:10:01,919 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:10:01,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-17 09:10:02,666 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2023-02-17 09:10:02,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:10:02,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 256 conjunts are in the unsatisfiable core [2023-02-17 09:10:02,699 INFO L286 TraceCheckSpWp]: Computing forward predicates...