./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/sum01_bug02.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:12:25,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:12:25,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:12:25,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:12:25,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:12:25,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:12:25,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:12:25,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:12:25,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:12:25,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:12:25,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:12:25,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:12:25,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:12:25,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:12:25,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:12:25,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:12:25,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:12:25,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:12:25,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:12:25,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:12:25,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:12:25,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:12:25,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:12:25,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:12:25,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:12:25,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:12:25,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:12:25,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:12:25,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:12:25,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:12:25,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:12:25,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:12:25,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:12:25,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:12:25,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:12:25,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:12:25,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:12:25,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:12:25,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:12:25,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:12:25,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:12:25,335 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 02:12:25,366 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:12:25,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:12:25,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:12:25,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:12:25,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 02:12:25,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 02:12:25,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:12:25,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:12:25,369 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:12:25,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:12:25,369 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 02:12:25,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:12:25,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:12:25,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 02:12:25,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:12:25,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 02:12:25,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 02:12:25,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 02:12:25,371 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 02:12:25,371 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 02:12:25,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:12:25,371 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:12:25,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 02:12:25,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:12:25,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:12:25,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 02:12:25,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:12:25,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:12:25,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 02:12:25,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 02:12:25,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:12:25,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 02:12:25,374 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 02:12:25,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 02:12:25,374 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 02:12:25,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 02:12:25,374 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 02:12:25,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e [2023-02-15 02:12:25,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:12:25,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:12:25,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:12:25,600 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:12:25,601 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:12:25,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum01_bug02.i [2023-02-15 02:12:26,540 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:12:26,670 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:12:26,670 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i [2023-02-15 02:12:26,674 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3412cd3c1/c06bb79c434442589833fad37acd7920/FLAG9ec64197e [2023-02-15 02:12:26,684 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3412cd3c1/c06bb79c434442589833fad37acd7920 [2023-02-15 02:12:26,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:12:26,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:12:26,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:12:26,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:12:26,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:12:26,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f4950d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26, skipping insertion in model container [2023-02-15 02:12:26,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:12:26,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:12:26,844 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/loops/sum01_bug02.i[812,825] [2023-02-15 02:12:26,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:12:26,862 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:12:26,871 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/loops/sum01_bug02.i[812,825] [2023-02-15 02:12:26,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:12:26,890 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:12:26,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26 WrapperNode [2023-02-15 02:12:26,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:12:26,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:12:26,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:12:26,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:12:26,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,914 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2023-02-15 02:12:26,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:12:26,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:12:26,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:12:26,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:12:26,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:12:26,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:12:26,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:12:26,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:12:26,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (1/1) ... [2023-02-15 02:12:26,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:12:26,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:26,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 02:12:26,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 02:12:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 02:12:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 02:12:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:12:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:12:27,050 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:12:27,051 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:12:27,170 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:12:27,174 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:12:27,175 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 02:12:27,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:12:27 BoogieIcfgContainer [2023-02-15 02:12:27,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:12:27,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 02:12:27,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 02:12:27,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 02:12:27,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:12:26" (1/3) ... [2023-02-15 02:12:27,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2cf35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:12:27, skipping insertion in model container [2023-02-15 02:12:27,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:12:26" (2/3) ... [2023-02-15 02:12:27,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2cf35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:12:27, skipping insertion in model container [2023-02-15 02:12:27,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:12:27" (3/3) ... [2023-02-15 02:12:27,210 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i [2023-02-15 02:12:27,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 02:12:27,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 02:12:27,284 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 02:12:27,292 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70dc979c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 02:12:27,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 02:12:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.65) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 02:12:27,302 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:27,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 02:12:27,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash 28696678, now seen corresponding path program 1 times [2023-02-15 02:12:27,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:27,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832706998] [2023-02-15 02:12:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:27,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:27,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:27,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832706998] [2023-02-15 02:12:27,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832706998] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:27,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:27,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:12:27,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908420575] [2023-02-15 02:12:27,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:27,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 02:12:27,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 02:12:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 02:12:27,441 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.65) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:27,458 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-02-15 02:12:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 02:12:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 02:12:27,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:27,467 INFO L225 Difference]: With dead ends: 39 [2023-02-15 02:12:27,468 INFO L226 Difference]: Without dead ends: 23 [2023-02-15 02:12:27,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 02:12:27,477 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:27,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-15 02:12:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-15 02:12:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-15 02:12:27,502 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2023-02-15 02:12:27,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:27,503 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-15 02:12:27,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,504 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-15 02:12:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 02:12:27,504 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:27,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 02:12:27,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 02:12:27,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash 28695903, now seen corresponding path program 1 times [2023-02-15 02:12:27,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:27,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021691778] [2023-02-15 02:12:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:27,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:27,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021691778] [2023-02-15 02:12:27,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021691778] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:27,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:27,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:12:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906462704] [2023-02-15 02:12:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:27,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:12:27,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:27,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:12:27,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:12:27,626 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:27,657 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-15 02:12:27,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:12:27,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 02:12:27,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:27,658 INFO L225 Difference]: With dead ends: 23 [2023-02-15 02:12:27,658 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 02:12:27,659 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 [2023-02-15 02:12:27,659 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:27,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 19 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:27,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 02:12:27,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-15 02:12:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-15 02:12:27,664 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2023-02-15 02:12:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:27,664 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-15 02:12:27,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-15 02:12:27,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:12:27,665 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:27,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:12:27,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 02:12:27,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:27,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash 889573066, now seen corresponding path program 1 times [2023-02-15 02:12:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:27,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805818710] [2023-02-15 02:12:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:27,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:27,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:27,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805818710] [2023-02-15 02:12:27,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805818710] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:27,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:27,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:12:27,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099692316] [2023-02-15 02:12:27,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:27,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:12:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:12:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:12:27,739 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:27,787 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2023-02-15 02:12:27,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:12:27,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 02:12:27,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:27,789 INFO L225 Difference]: With dead ends: 41 [2023-02-15 02:12:27,789 INFO L226 Difference]: Without dead ends: 38 [2023-02-15 02:12:27,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:12:27,791 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:27,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-15 02:12:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2023-02-15 02:12:27,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.5) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-15 02:12:27,795 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 6 [2023-02-15 02:12:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:27,796 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-15 02:12:27,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-15 02:12:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:12:27,796 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:27,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:12:27,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 02:12:27,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash 889574252, now seen corresponding path program 1 times [2023-02-15 02:12:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:27,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514861319] [2023-02-15 02:12:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:27,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:27,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:27,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:27,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514861319] [2023-02-15 02:12:27,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514861319] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:27,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:27,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:12:27,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980441616] [2023-02-15 02:12:27,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:27,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:12:27,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:12:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:12:27,843 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:27,858 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-02-15 02:12:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:12:27,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 02:12:27,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:27,860 INFO L225 Difference]: With dead ends: 42 [2023-02-15 02:12:27,860 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 02:12:27,860 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 [2023-02-15 02:12:27,862 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:27,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 38 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:27,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 02:12:27,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-02-15 02:12:27,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-02-15 02:12:27,872 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 6 [2023-02-15 02:12:27,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:27,872 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-15 02:12:27,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-02-15 02:12:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:12:27,873 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:27,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:27,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 02:12:27,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:27,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:27,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1807004046, now seen corresponding path program 1 times [2023-02-15 02:12:27,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:27,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947128781] [2023-02-15 02:12:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:27,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:27,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947128781] [2023-02-15 02:12:27,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947128781] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:27,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:27,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 02:12:27,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342108876] [2023-02-15 02:12:27,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:27,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:12:27,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:27,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:12:27,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:12:27,950 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:27,966 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2023-02-15 02:12:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:12:27,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 02:12:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:27,967 INFO L225 Difference]: With dead ends: 60 [2023-02-15 02:12:27,967 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 02:12:27,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:12:27,968 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:27,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 37 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 02:12:27,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-02-15 02:12:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-02-15 02:12:27,971 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 7 [2023-02-15 02:12:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:27,972 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-02-15 02:12:27,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-02-15 02:12:27,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 02:12:27,972 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:27,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:27,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 02:12:27,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:27,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:27,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1358376778, now seen corresponding path program 1 times [2023-02-15 02:12:27,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:27,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045246154] [2023-02-15 02:12:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:27,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:28,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045246154] [2023-02-15 02:12:28,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045246154] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:28,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:28,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:12:28,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719218034] [2023-02-15 02:12:28,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:28,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:12:28,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:12:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:12:28,006 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:28,027 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-02-15 02:12:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 02:12:28,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 02:12:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:28,028 INFO L225 Difference]: With dead ends: 31 [2023-02-15 02:12:28,028 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 02:12:28,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:12:28,029 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:28,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 51 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 02:12:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-02-15 02:12:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.380952380952381) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-15 02:12:28,032 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 9 [2023-02-15 02:12:28,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:28,033 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-15 02:12:28,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-15 02:12:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 02:12:28,034 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:28,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:28,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 02:12:28,035 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:28,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash -839992782, now seen corresponding path program 1 times [2023-02-15 02:12:28,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:28,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282263688] [2023-02-15 02:12:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:28,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282263688] [2023-02-15 02:12:28,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282263688] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:28,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:28,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:12:28,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574204991] [2023-02-15 02:12:28,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:28,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:12:28,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:28,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:12:28,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:12:28,067 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:28,081 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-15 02:12:28,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:12:28,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-15 02:12:28,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:28,081 INFO L225 Difference]: With dead ends: 28 [2023-02-15 02:12:28,082 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 02:12:28,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:12:28,082 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:28,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 32 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:28,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 02:12:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-15 02:12:28,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-02-15 02:12:28,085 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 10 [2023-02-15 02:12:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:28,085 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-02-15 02:12:28,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-02-15 02:12:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 02:12:28,086 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:28,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:28,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 02:12:28,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:28,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:28,095 INFO L85 PathProgramCache]: Analyzing trace with hash 220790132, now seen corresponding path program 1 times [2023-02-15 02:12:28,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:28,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076790690] [2023-02-15 02:12:28,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:28,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:28,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076790690] [2023-02-15 02:12:28,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076790690] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:28,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:12:28,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:12:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35998081] [2023-02-15 02:12:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:12:28,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:12:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:12:28,143 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:28,174 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-02-15 02:12:28,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:12:28,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 02:12:28,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:28,175 INFO L225 Difference]: With dead ends: 33 [2023-02-15 02:12:28,175 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 02:12:28,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:12:28,176 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:28,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:28,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 02:12:28,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-15 02:12:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-02-15 02:12:28,179 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 12 [2023-02-15 02:12:28,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:28,179 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-02-15 02:12:28,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,179 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2023-02-15 02:12:28,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 02:12:28,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:28,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:28,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 02:12:28,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:28,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:28,180 INFO L85 PathProgramCache]: Analyzing trace with hash 753126975, now seen corresponding path program 1 times [2023-02-15 02:12:28,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:28,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162964583] [2023-02-15 02:12:28,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:28,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162964583] [2023-02-15 02:12:28,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162964583] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597446866] [2023-02-15 02:12:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:28,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:28,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:12:28,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 02:12:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:12:28,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:28,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597446866] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:28,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:28,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-15 02:12:28,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965304363] [2023-02-15 02:12:28,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:28,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 02:12:28,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:28,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 02:12:28,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:12:28,432 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:28,554 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2023-02-15 02:12:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:12:28,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 02:12:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:28,556 INFO L225 Difference]: With dead ends: 48 [2023-02-15 02:12:28,557 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 02:12:28,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-02-15 02:12:28,561 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 108 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:28,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 54 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 02:12:28,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2023-02-15 02:12:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-15 02:12:28,572 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16 [2023-02-15 02:12:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:28,572 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-15 02:12:28,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-15 02:12:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 02:12:28,573 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:28,574 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:28,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:28,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:28,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:28,778 INFO L85 PathProgramCache]: Analyzing trace with hash 753128161, now seen corresponding path program 1 times [2023-02-15 02:12:28,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:28,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202604341] [2023-02-15 02:12:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:28,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202604341] [2023-02-15 02:12:28,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202604341] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:28,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76782054] [2023-02-15 02:12:28,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:28,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:28,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:28,817 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) [2023-02-15 02:12:28,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 02:12:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:28,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:12:28,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:28,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:12:28,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76782054] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:28,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 02:12:28,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-02-15 02:12:28,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347588771] [2023-02-15 02:12:28,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:28,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:12:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:28,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:12:28,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:12:28,884 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:28,890 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-15 02:12:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:12:28,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 02:12:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:28,891 INFO L225 Difference]: With dead ends: 28 [2023-02-15 02:12:28,891 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 02:12:28,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 02:12:28,891 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:28,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:28,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 02:12:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-15 02:12:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-02-15 02:12:28,894 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2023-02-15 02:12:28,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:28,894 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-02-15 02:12:28,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:28,894 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-02-15 02:12:28,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 02:12:28,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:28,894 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:28,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:29,099 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,SelfDestructingSolverStorable9 [2023-02-15 02:12:29,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:29,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:29,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1872136563, now seen corresponding path program 1 times [2023-02-15 02:12:29,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:29,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149497669] [2023-02-15 02:12:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:29,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:29,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149497669] [2023-02-15 02:12:29,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149497669] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:29,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656941542] [2023-02-15 02:12:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:29,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:29,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:29,148 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) [2023-02-15 02:12:29,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 02:12:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:29,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:12:29,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:29,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:29,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656941542] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:29,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:29,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-02-15 02:12:29,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489236846] [2023-02-15 02:12:29,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 02:12:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:29,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 02:12:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 02:12:29,249 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:29,279 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2023-02-15 02:12:29,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:12:29,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 02:12:29,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:29,281 INFO L225 Difference]: With dead ends: 67 [2023-02-15 02:12:29,281 INFO L226 Difference]: Without dead ends: 66 [2023-02-15 02:12:29,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 02:12:29,282 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:29,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 67 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-15 02:12:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2023-02-15 02:12:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.320754716981132) internal successors, (70), 56 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2023-02-15 02:12:29,296 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 17 [2023-02-15 02:12:29,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:29,296 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2023-02-15 02:12:29,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:29,296 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2023-02-15 02:12:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 02:12:29,297 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:29,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:29,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 02:12:29,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:29,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:29,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:29,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1872142521, now seen corresponding path program 1 times [2023-02-15 02:12:29,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:29,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066123585] [2023-02-15 02:12:29,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:29,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:29,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:29,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066123585] [2023-02-15 02:12:29,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066123585] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:29,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691086299] [2023-02-15 02:12:29,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:29,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:29,549 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) [2023-02-15 02:12:29,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 02:12:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:29,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 02:12:29,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:29,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:29,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691086299] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:29,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:29,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 17 [2023-02-15 02:12:29,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753170335] [2023-02-15 02:12:29,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:29,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 02:12:29,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:29,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 02:12:29,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-02-15 02:12:29,717 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:29,844 INFO L93 Difference]: Finished difference Result 105 states and 126 transitions. [2023-02-15 02:12:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 02:12:29,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 02:12:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:29,844 INFO L225 Difference]: With dead ends: 105 [2023-02-15 02:12:29,844 INFO L226 Difference]: Without dead ends: 61 [2023-02-15 02:12:29,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-02-15 02:12:29,845 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 76 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:29,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 58 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-15 02:12:29,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2023-02-15 02:12:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 50 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-02-15 02:12:29,849 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 17 [2023-02-15 02:12:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:29,849 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-02-15 02:12:29,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-02-15 02:12:29,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 02:12:29,849 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:29,849 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 02:12:29,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:30,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:30,050 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:30,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:30,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1837420841, now seen corresponding path program 1 times [2023-02-15 02:12:30,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:30,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20466215] [2023-02-15 02:12:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:30,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:30,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20466215] [2023-02-15 02:12:30,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20466215] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597592156] [2023-02-15 02:12:30,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:30,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:30,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:30,098 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) [2023-02-15 02:12:30,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 02:12:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:30,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:12:30,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:30,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:12:30,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597592156] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:30,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 02:12:30,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-15 02:12:30,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871209226] [2023-02-15 02:12:30,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:30,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:12:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:30,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:12:30,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 02:12:30,161 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:30,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:30,187 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2023-02-15 02:12:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:12:30,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-15 02:12:30,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:30,188 INFO L225 Difference]: With dead ends: 51 [2023-02-15 02:12:30,188 INFO L226 Difference]: Without dead ends: 50 [2023-02-15 02:12:30,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-15 02:12:30,189 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:30,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-15 02:12:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-02-15 02:12:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 49 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2023-02-15 02:12:30,192 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 22 [2023-02-15 02:12:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:30,192 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2023-02-15 02:12:30,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:30,200 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2023-02-15 02:12:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-15 02:12:30,200 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:30,200 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 02:12:30,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:30,405 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,SelfDestructingSolverStorable12 [2023-02-15 02:12:30,405 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:30,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1125471289, now seen corresponding path program 1 times [2023-02-15 02:12:30,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:30,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275923223] [2023-02-15 02:12:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:30,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:30,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:30,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275923223] [2023-02-15 02:12:30,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275923223] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:30,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114512552] [2023-02-15 02:12:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:30,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:30,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:30,440 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) [2023-02-15 02:12:30,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 02:12:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:30,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:12:30,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:30,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:30,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114512552] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:30,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:30,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-15 02:12:30,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597525425] [2023-02-15 02:12:30,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:30,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 02:12:30,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:30,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 02:12:30,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:12:30,551 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:30,613 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2023-02-15 02:12:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 02:12:30,613 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-02-15 02:12:30,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:30,614 INFO L225 Difference]: With dead ends: 75 [2023-02-15 02:12:30,614 INFO L226 Difference]: Without dead ends: 74 [2023-02-15 02:12:30,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-02-15 02:12:30,615 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:30,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 62 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:30,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-15 02:12:30,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2023-02-15 02:12:30,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 69 states have (on average 1.1594202898550725) internal successors, (80), 71 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2023-02-15 02:12:30,622 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 23 [2023-02-15 02:12:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:30,623 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2023-02-15 02:12:30,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:30,623 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2023-02-15 02:12:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 02:12:30,623 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:30,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-15 02:12:30,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:30,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:30,829 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:30,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2121300384, now seen corresponding path program 1 times [2023-02-15 02:12:30,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:30,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928570561] [2023-02-15 02:12:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:30,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:30,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928570561] [2023-02-15 02:12:30,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928570561] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:30,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040817126] [2023-02-15 02:12:30,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:30,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:30,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:30,911 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) [2023-02-15 02:12:30,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 02:12:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:30,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 02:12:30,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:31,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:31,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040817126] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:31,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:31,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2023-02-15 02:12:31,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746369395] [2023-02-15 02:12:31,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:31,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-15 02:12:31,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:31,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-15 02:12:31,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-02-15 02:12:31,139 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 21 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:31,372 INFO L93 Difference]: Finished difference Result 161 states and 188 transitions. [2023-02-15 02:12:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 02:12:31,373 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-02-15 02:12:31,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:31,373 INFO L225 Difference]: With dead ends: 161 [2023-02-15 02:12:31,373 INFO L226 Difference]: Without dead ends: 160 [2023-02-15 02:12:31,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=344, Invalid=1138, Unknown=0, NotChecked=0, Total=1482 [2023-02-15 02:12:31,375 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 125 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:31,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 120 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:12:31,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-15 02:12:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 144. [2023-02-15 02:12:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 141 states have (on average 1.1843971631205674) internal successors, (167), 143 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 167 transitions. [2023-02-15 02:12:31,389 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 167 transitions. Word has length 29 [2023-02-15 02:12:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:31,389 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 167 transitions. [2023-02-15 02:12:31,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.25) internal successors, (85), 21 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 167 transitions. [2023-02-15 02:12:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-15 02:12:31,394 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:31,394 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 02:12:31,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 02:12:31,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:31,597 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:31,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:31,598 INFO L85 PathProgramCache]: Analyzing trace with hash 569949300, now seen corresponding path program 2 times [2023-02-15 02:12:31,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:31,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244967696] [2023-02-15 02:12:31,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:31,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:31,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:31,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244967696] [2023-02-15 02:12:31,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244967696] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:31,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768625193] [2023-02-15 02:12:31,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:12:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:31,647 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) [2023-02-15 02:12:31,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 02:12:31,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:12:31,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:31,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:12:31,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:31,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:31,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768625193] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:31,813 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:31,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-02-15 02:12:31,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378672592] [2023-02-15 02:12:31,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:31,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 02:12:31,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:31,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 02:12:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-15 02:12:31,814 INFO L87 Difference]: Start difference. First operand 144 states and 167 transitions. Second operand has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:31,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:31,841 INFO L93 Difference]: Finished difference Result 287 states and 337 transitions. [2023-02-15 02:12:31,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:12:31,842 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-02-15 02:12:31,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:31,844 INFO L225 Difference]: With dead ends: 287 [2023-02-15 02:12:31,844 INFO L226 Difference]: Without dead ends: 286 [2023-02-15 02:12:31,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-02-15 02:12:31,844 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:31,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 126 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:31,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-02-15 02:12:31,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 272. [2023-02-15 02:12:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 269 states have (on average 1.1933085501858736) internal successors, (321), 271 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 321 transitions. [2023-02-15 02:12:31,853 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 321 transitions. Word has length 47 [2023-02-15 02:12:31,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:31,853 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 321 transitions. [2023-02-15 02:12:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.25) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 321 transitions. [2023-02-15 02:12:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-02-15 02:12:31,854 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:31,854 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-15 02:12:31,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-15 02:12:32,058 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,SelfDestructingSolverStorable15 [2023-02-15 02:12:32,059 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash -74742206, now seen corresponding path program 1 times [2023-02-15 02:12:32,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:32,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212403526] [2023-02-15 02:12:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:32,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:32,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212403526] [2023-02-15 02:12:32,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212403526] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:32,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458849647] [2023-02-15 02:12:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:32,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:32,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:32,185 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) [2023-02-15 02:12:32,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 02:12:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:32,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 02:12:32,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-15 02:12:32,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:32,644 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 44 proven. 36 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-15 02:12:32,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458849647] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:32,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:32,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 40 [2023-02-15 02:12:32,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183119416] [2023-02-15 02:12:32,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:32,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 02:12:32,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:32,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 02:12:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1299, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 02:12:32,647 INFO L87 Difference]: Start difference. First operand 272 states and 321 transitions. Second operand has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:32,874 INFO L93 Difference]: Finished difference Result 394 states and 469 transitions. [2023-02-15 02:12:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 02:12:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2023-02-15 02:12:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:32,876 INFO L225 Difference]: With dead ends: 394 [2023-02-15 02:12:32,876 INFO L226 Difference]: Without dead ends: 201 [2023-02-15 02:12:32,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=537, Invalid=2219, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 02:12:32,877 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 90 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:32,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 109 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:12:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-02-15 02:12:32,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 178. [2023-02-15 02:12:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.1714285714285715) internal successors, (205), 177 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2023-02-15 02:12:32,883 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 49 [2023-02-15 02:12:32,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:32,883 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2023-02-15 02:12:32,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:32,884 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2023-02-15 02:12:32,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-02-15 02:12:32,884 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:32,884 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2023-02-15 02:12:32,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:33,091 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,SelfDestructingSolverStorable16 [2023-02-15 02:12:33,091 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1834436503, now seen corresponding path program 2 times [2023-02-15 02:12:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:33,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796959561] [2023-02-15 02:12:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:33,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 68 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:33,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:33,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796959561] [2023-02-15 02:12:33,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796959561] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:33,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564814104] [2023-02-15 02:12:33,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:12:33,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:33,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:33,223 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) [2023-02-15 02:12:33,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 02:12:33,249 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 02:12:33,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:33,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 02:12:33,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-02-15 02:12:33,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:33,587 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-02-15 02:12:33,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564814104] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:33,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:33,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2023-02-15 02:12:33,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032016943] [2023-02-15 02:12:33,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:33,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 02:12:33,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:33,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 02:12:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2023-02-15 02:12:33,590 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand has 19 states, 18 states have (on average 4.5) internal successors, (81), 19 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:33,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:33,967 INFO L93 Difference]: Finished difference Result 269 states and 321 transitions. [2023-02-15 02:12:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 02:12:33,967 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.5) internal successors, (81), 19 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-02-15 02:12:33,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:33,968 INFO L225 Difference]: With dead ends: 269 [2023-02-15 02:12:33,968 INFO L226 Difference]: Without dead ends: 268 [2023-02-15 02:12:33,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=486, Invalid=1494, Unknown=0, NotChecked=0, Total=1980 [2023-02-15 02:12:33,970 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 56 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:33,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 99 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:12:33,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-02-15 02:12:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 177. [2023-02-15 02:12:33,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.1085714285714285) internal successors, (194), 176 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2023-02-15 02:12:33,978 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 61 [2023-02-15 02:12:33,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:33,979 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2023-02-15 02:12:33,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.5) internal successors, (81), 19 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:33,979 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2023-02-15 02:12:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-15 02:12:33,980 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:33,980 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 02:12:33,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:34,184 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,SelfDestructingSolverStorable17 [2023-02-15 02:12:34,185 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash 598757938, now seen corresponding path program 2 times [2023-02-15 02:12:34,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:34,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381367598] [2023-02-15 02:12:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:34,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:34,418 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:34,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:34,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381367598] [2023-02-15 02:12:34,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381367598] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:34,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049832807] [2023-02-15 02:12:34,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:12:34,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:34,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:34,421 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) [2023-02-15 02:12:34,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 02:12:34,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:12:34,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:34,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 02:12:34,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:34,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:34,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049832807] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:34,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:34,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2023-02-15 02:12:34,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044911024] [2023-02-15 02:12:34,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:34,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-15 02:12:34,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:34,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-15 02:12:34,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2023-02-15 02:12:34,862 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand has 38 states, 37 states have (on average 4.351351351351352) internal successors, (161), 38 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:35,163 INFO L93 Difference]: Finished difference Result 766 states and 898 transitions. [2023-02-15 02:12:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-02-15 02:12:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.351351351351352) internal successors, (161), 38 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-02-15 02:12:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:35,166 INFO L225 Difference]: With dead ends: 766 [2023-02-15 02:12:35,166 INFO L226 Difference]: Without dead ends: 765 [2023-02-15 02:12:35,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=910, Invalid=2170, Unknown=0, NotChecked=0, Total=3080 [2023-02-15 02:12:35,167 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 184 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:35,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 171 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:12:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-02-15 02:12:35,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 751. [2023-02-15 02:12:35,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 749 states have (on average 1.1121495327102804) internal successors, (833), 750 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 833 transitions. [2023-02-15 02:12:35,190 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 833 transitions. Word has length 81 [2023-02-15 02:12:35,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:35,190 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 833 transitions. [2023-02-15 02:12:35,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.351351351351352) internal successors, (161), 38 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:35,190 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 833 transitions. [2023-02-15 02:12:35,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-02-15 02:12:35,191 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:35,191 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-15 02:12:35,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-15 02:12:35,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:35,396 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:35,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:35,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1099314378, now seen corresponding path program 3 times [2023-02-15 02:12:35,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:35,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105146683] [2023-02-15 02:12:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:35,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105146683] [2023-02-15 02:12:35,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105146683] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:35,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832735087] [2023-02-15 02:12:35,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 02:12:35,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:35,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:35,549 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) [2023-02-15 02:12:35,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 02:12:35,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 02:12:35,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:35,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 02:12:35,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:35,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:35,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832735087] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:35,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:35,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-02-15 02:12:35,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447873012] [2023-02-15 02:12:35,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:35,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-15 02:12:35,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:35,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-15 02:12:35,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-02-15 02:12:35,911 INFO L87 Difference]: Start difference. First operand 751 states and 833 transitions. Second operand has 25 states, 24 states have (on average 9.125) internal successors, (219), 25 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:35,986 INFO L93 Difference]: Finished difference Result 1185 states and 1341 transitions. [2023-02-15 02:12:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 02:12:35,986 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.125) internal successors, (219), 25 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-02-15 02:12:35,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:35,989 INFO L225 Difference]: With dead ends: 1185 [2023-02-15 02:12:35,989 INFO L226 Difference]: Without dead ends: 1184 [2023-02-15 02:12:35,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-02-15 02:12:35,990 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 102 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:35,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 241 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:12:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2023-02-15 02:12:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1167. [2023-02-15 02:12:36,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1167 states, 1165 states have (on average 1.109871244635193) internal successors, (1293), 1166 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1293 transitions. [2023-02-15 02:12:36,025 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1293 transitions. Word has length 107 [2023-02-15 02:12:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:36,025 INFO L495 AbstractCegarLoop]: Abstraction has 1167 states and 1293 transitions. [2023-02-15 02:12:36,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.125) internal successors, (219), 25 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1293 transitions. [2023-02-15 02:12:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-15 02:12:36,027 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:36,027 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 14, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 02:12:36,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-15 02:12:36,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:36,229 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash -412516984, now seen corresponding path program 3 times [2023-02-15 02:12:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:36,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875514187] [2023-02-15 02:12:36,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 0 proven. 1316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:36,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:36,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875514187] [2023-02-15 02:12:36,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875514187] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:36,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636447778] [2023-02-15 02:12:36,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 02:12:36,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:36,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:36,989 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) [2023-02-15 02:12:36,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 02:12:37,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 02:12:37,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:37,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 40 conjunts are in the unsatisfiable core [2023-02-15 02:12:37,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 68 proven. 1248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:37,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1316 backedges. 68 proven. 1248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:38,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636447778] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:38,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:38,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 40, 40] total 87 [2023-02-15 02:12:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337903409] [2023-02-15 02:12:38,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:38,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2023-02-15 02:12:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:38,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2023-02-15 02:12:38,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1368, Invalid=6288, Unknown=0, NotChecked=0, Total=7656 [2023-02-15 02:12:38,600 INFO L87 Difference]: Start difference. First operand 1167 states and 1293 transitions. Second operand has 88 states, 87 states have (on average 4.183908045977011) internal successors, (364), 88 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:41,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:41,417 INFO L93 Difference]: Finished difference Result 7736 states and 9182 transitions. [2023-02-15 02:12:41,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-02-15 02:12:41,417 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 4.183908045977011) internal successors, (364), 88 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-02-15 02:12:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:41,434 INFO L225 Difference]: With dead ends: 7736 [2023-02-15 02:12:41,434 INFO L226 Difference]: Without dead ends: 7735 [2023-02-15 02:12:41,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10892 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=7610, Invalid=30220, Unknown=0, NotChecked=0, Total=37830 [2023-02-15 02:12:41,443 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 456 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:41,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 186 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 02:12:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7735 states. [2023-02-15 02:12:41,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7735 to 4441. [2023-02-15 02:12:41,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4441 states, 4439 states have (on average 1.1259292633476008) internal successors, (4998), 4440 states have internal predecessors, (4998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 4998 transitions. [2023-02-15 02:12:41,629 INFO L78 Accepts]: Start accepts. Automaton has 4441 states and 4998 transitions. Word has length 161 [2023-02-15 02:12:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:41,630 INFO L495 AbstractCegarLoop]: Abstraction has 4441 states and 4998 transitions. [2023-02-15 02:12:41,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 4.183908045977011) internal successors, (364), 88 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:41,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4441 states and 4998 transitions. [2023-02-15 02:12:41,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-02-15 02:12:41,635 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:41,635 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-15 02:12:41,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:41,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-15 02:12:41,841 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:41,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1001147322, now seen corresponding path program 4 times [2023-02-15 02:12:41,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:41,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052309652] [2023-02-15 02:12:41,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:41,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 0 proven. 2398 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:42,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052309652] [2023-02-15 02:12:42,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052309652] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139968607] [2023-02-15 02:12:42,336 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 02:12:42,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:42,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:42,337 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:12:42,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 02:12:42,418 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 02:12:42,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:42,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-15 02:12:42,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2398 backedges. 1004 proven. 0 refuted. 0 times theorem prover too weak. 1394 trivial. 0 not checked. [2023-02-15 02:12:42,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:12:42,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139968607] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:12:42,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 02:12:42,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [24] total 47 [2023-02-15 02:12:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716512339] [2023-02-15 02:12:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:12:42,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 02:12:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:42,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 02:12:42,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=1727, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 02:12:42,890 INFO L87 Difference]: Start difference. First operand 4441 states and 4998 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:43,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:43,168 INFO L93 Difference]: Finished difference Result 4442 states and 4998 transitions. [2023-02-15 02:12:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-15 02:12:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2023-02-15 02:12:43,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:43,169 INFO L225 Difference]: With dead ends: 4442 [2023-02-15 02:12:43,169 INFO L226 Difference]: Without dead ends: 290 [2023-02-15 02:12:43,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=618, Invalid=2804, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 02:12:43,175 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 46 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:43,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 61 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:12:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-02-15 02:12:43,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2023-02-15 02:12:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.0034602076124568) internal successors, (290), 289 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 290 transitions. [2023-02-15 02:12:43,184 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 290 transitions. Word has length 227 [2023-02-15 02:12:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:43,184 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 290 transitions. [2023-02-15 02:12:43,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 290 transitions. [2023-02-15 02:12:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-02-15 02:12:43,186 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:43,186 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 30, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 02:12:43,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:43,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:43,391 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:43,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2009476216, now seen corresponding path program 4 times [2023-02-15 02:12:43,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:43,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606825802] [2023-02-15 02:12:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:43,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:12:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:45,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:12:45,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606825802] [2023-02-15 02:12:45,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606825802] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:12:45,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667292907] [2023-02-15 02:12:45,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 02:12:45,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:12:45,559 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:12:45,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 02:12:45,646 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 02:12:45,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:12:45,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-15 02:12:45,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:12:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:45,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:12:49,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 4644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:12:49,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667292907] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:12:49,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:12:49,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 141 [2023-02-15 02:12:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120082031] [2023-02-15 02:12:49,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:12:49,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2023-02-15 02:12:49,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:12:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2023-02-15 02:12:49,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2023-02-15 02:12:49,180 INFO L87 Difference]: Start difference. First operand 290 states and 290 transitions. Second operand has 142 states, 141 states have (on average 4.092198581560283) internal successors, (577), 142 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:12:51,875 INFO L93 Difference]: Finished difference Result 580 states and 615 transitions. [2023-02-15 02:12:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2023-02-15 02:12:51,876 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 141 states have (on average 4.092198581560283) internal successors, (577), 142 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 289 [2023-02-15 02:12:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:12:51,877 INFO L225 Difference]: With dead ends: 580 [2023-02-15 02:12:51,877 INFO L226 Difference]: Without dead ends: 579 [2023-02-15 02:12:51,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9454 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=12636, Invalid=32096, Unknown=0, NotChecked=0, Total=44732 [2023-02-15 02:12:51,882 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 469 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 02:12:51,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 373 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 02:12:51,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-02-15 02:12:51,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 578. [2023-02-15 02:12:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 577 states have (on average 1.001733102253033) internal successors, (578), 577 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 578 transitions. [2023-02-15 02:12:51,895 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 578 transitions. Word has length 289 [2023-02-15 02:12:51,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:12:51,896 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 578 transitions. [2023-02-15 02:12:51,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 141 states have (on average 4.092198581560283) internal successors, (577), 142 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:12:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 578 transitions. [2023-02-15 02:12:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2023-02-15 02:12:51,901 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:12:51,902 INFO L195 NwaCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 66, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 02:12:51,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 02:12:52,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:12:52,108 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:12:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:12:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2092999148, now seen corresponding path program 5 times [2023-02-15 02:12:52,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:12:52,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446673130] [2023-02-15 02:12:52,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:12:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:12:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:13:01,074 INFO L134 CoverageAnalysis]: Checked inductivity of 19620 backedges. 0 proven. 19620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:13:01,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:13:01,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446673130] [2023-02-15 02:13:01,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446673130] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:13:01,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817139941] [2023-02-15 02:13:01,075 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 02:13:01,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:13:01,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:13:01,076 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:13:01,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 02:13:01,307 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2023-02-15 02:13:01,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:13:01,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 143 conjunts are in the unsatisfiable core [2023-02-15 02:13:01,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:13:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 19620 backedges. 0 proven. 19620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:13:01,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:13:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 19620 backedges. 0 proven. 19620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:13:14,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817139941] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:13:14,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:13:14,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 285 [2023-02-15 02:13:14,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725059133] [2023-02-15 02:13:14,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:13:14,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 286 states [2023-02-15 02:13:14,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:13:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 286 interpolants. [2023-02-15 02:13:14,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20591, Invalid=60919, Unknown=0, NotChecked=0, Total=81510 [2023-02-15 02:13:14,166 INFO L87 Difference]: Start difference. First operand 578 states and 578 transitions. Second operand has 286 states, 285 states have (on average 4.045614035087719) internal successors, (1153), 286 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:13:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:13:26,346 INFO L93 Difference]: Finished difference Result 1156 states and 1227 transitions. [2023-02-15 02:13:26,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 287 states. [2023-02-15 02:13:26,347 INFO L78 Accepts]: Start accepts. Automaton has has 286 states, 285 states have (on average 4.045614035087719) internal successors, (1153), 286 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 577 [2023-02-15 02:13:26,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:13:26,349 INFO L225 Difference]: With dead ends: 1156 [2023-02-15 02:13:26,350 INFO L226 Difference]: Without dead ends: 1155 [2023-02-15 02:13:26,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 426 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39622 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=51192, Invalid=131564, Unknown=0, NotChecked=0, Total=182756 [2023-02-15 02:13:26,357 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1403 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 02:13:26,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 611 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 02:13:26,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2023-02-15 02:13:26,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1154. [2023-02-15 02:13:26,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.0008673026886383) internal successors, (1154), 1153 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:13:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1154 transitions. [2023-02-15 02:13:26,416 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1154 transitions. Word has length 577 [2023-02-15 02:13:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:13:26,417 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1154 transitions. [2023-02-15 02:13:26,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 286 states, 285 states have (on average 4.045614035087719) internal successors, (1153), 286 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:13:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1154 transitions. [2023-02-15 02:13:26,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2023-02-15 02:13:26,441 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:13:26,442 INFO L195 NwaCegarLoop]: trace histogram [143, 143, 142, 142, 142, 142, 142, 138, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 02:13:26,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-15 02:13:26,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-02-15 02:13:26,648 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:13:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:13:26,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1392963916, now seen corresponding path program 6 times [2023-02-15 02:13:26,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:13:26,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600989424] [2023-02-15 02:13:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:13:26,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:13:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:10,333 INFO L134 CoverageAnalysis]: Checked inductivity of 80676 backedges. 0 proven. 80676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:10,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:10,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600989424] [2023-02-15 02:14:10,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600989424] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:10,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5314532] [2023-02-15 02:14:10,334 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 02:14:10,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:10,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:10,335 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:14:10,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 02:14:11,105 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 139 check-sat command(s) [2023-02-15 02:14:11,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:11,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 2043 conjuncts, 287 conjunts are in the unsatisfiable core [2023-02-15 02:14:11,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:12,295 INFO L134 CoverageAnalysis]: Checked inductivity of 80676 backedges. 0 proven. 80676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:12,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:15:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 80676 backedges. 0 proven. 80676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:15:00,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5314532] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:15:00,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:15:00,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [287, 287, 287] total 573 [2023-02-15 02:15:00,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528392588] [2023-02-15 02:15:00,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:15:00,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 574 states [2023-02-15 02:15:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:15:00,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 574 interpolants. [2023-02-15 02:15:00,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82655, Invalid=246247, Unknown=0, NotChecked=0, Total=328902 [2023-02-15 02:15:00,833 INFO L87 Difference]: Start difference. First operand 1154 states and 1154 transitions. Second operand has 574 states, 573 states have (on average 4.022687609075043) internal successors, (2305), 574 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:16:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:16:14,621 INFO L93 Difference]: Finished difference Result 2308 states and 2451 transitions. [2023-02-15 02:16:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 575 states. [2023-02-15 02:16:14,627 INFO L78 Accepts]: Start accepts. Automaton has has 574 states, 573 states have (on average 4.022687609075043) internal successors, (2305), 574 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1153 [2023-02-15 02:16:14,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:16:14,634 INFO L225 Difference]: With dead ends: 2308 [2023-02-15 02:16:14,634 INFO L226 Difference]: Without dead ends: 2307 [2023-02-15 02:16:14,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2877 GetRequests, 2019 SyntacticMatches, 0 SemanticMatches, 858 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162166 ImplicationChecksByTransitivity, 99.4s TimeCoverageRelationStatistics Valid=206064, Invalid=532676, Unknown=0, NotChecked=0, Total=738740 [2023-02-15 02:16:14,667 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3181 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 02:16:14,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 1223 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 02:16:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2023-02-15 02:16:14,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2306. [2023-02-15 02:16:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.0004338394793926) internal successors, (2306), 2305 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:16:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 2306 transitions. [2023-02-15 02:16:14,716 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 2306 transitions. Word has length 1153 [2023-02-15 02:16:14,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:16:14,716 INFO L495 AbstractCegarLoop]: Abstraction has 2306 states and 2306 transitions. [2023-02-15 02:16:14,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 574 states, 573 states have (on average 4.022687609075043) internal successors, (2305), 574 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:16:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 2306 transitions. [2023-02-15 02:16:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2306 [2023-02-15 02:16:14,744 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:16:14,745 INFO L195 NwaCegarLoop]: trace histogram [287, 287, 286, 286, 286, 286, 286, 282, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 02:16:14,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 02:16:14,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:16:14,955 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 02:16:14,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:16:14,956 INFO L85 PathProgramCache]: Analyzing trace with hash 384489404, now seen corresponding path program 7 times [2023-02-15 02:16:14,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:16:14,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587607096] [2023-02-15 02:16:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:16:14,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:16:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat