./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.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 e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:06:07,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:06:07,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:06:07,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:06:07,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:06:07,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:06:07,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:06:07,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:06:07,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:06:07,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:06:07,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:06:07,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:06:07,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:06:07,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:06:07,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:06:07,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:06:07,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:06:07,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:06:07,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:06:07,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:06:07,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:06:07,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:06:07,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:06:07,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:06:07,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:06:07,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:06:07,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:06:07,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:06:07,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:06:07,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:06:07,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:06:07,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:06:07,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:06:07,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:06:07,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:06:07,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:06:07,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:06:07,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:06:07,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:06:07,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:06:07,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:06:07,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 23:06:07,715 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:06:07,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:06:07,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:06:07,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:06:07,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:06:07,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:06:07,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:06:07,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:06:07,717 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:06:07,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:06:07,718 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 23:06:07,718 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:06:07,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:06:07,719 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 23:06:07,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:06:07,720 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:06:07,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:06:07,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:06:07,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:06:07,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:06:07,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:06:07,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:06:07,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:06:07,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:06:07,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:06:07,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:06:07,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:06:07,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:06:07,722 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:06:07,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:06:07,722 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:06:07,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 [2023-02-18 23:06:07,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:06:07,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:06:07,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:06:07,908 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:06:07,908 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:06:07,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2023-02-18 23:06:08,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:06:09,013 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:06:09,013 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2023-02-18 23:06:09,017 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e4c423e6/4f224959b33c4f79aa19df445a05d62e/FLAG3bb09854e [2023-02-18 23:06:09,033 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e4c423e6/4f224959b33c4f79aa19df445a05d62e [2023-02-18 23:06:09,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:06:09,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:06:09,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:06:09,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:06:09,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:06:09,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f57c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09, skipping insertion in model container [2023-02-18 23:06:09,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:06:09,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:06:09,152 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/loop-zilu/benchmark41_conjunctive.i[873,886] [2023-02-18 23:06:09,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:06:09,169 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:06:09,176 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/loop-zilu/benchmark41_conjunctive.i[873,886] [2023-02-18 23:06:09,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:06:09,186 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:06:09,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09 WrapperNode [2023-02-18 23:06:09,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:06:09,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:06:09,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:06:09,187 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:06:09,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,205 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2023-02-18 23:06:09,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:06:09,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:06:09,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:06:09,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:06:09,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:06:09,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:06:09,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:06:09,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:06:09,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (1/1) ... [2023-02-18 23:06:09,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:06:09,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:09,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 23:06:09,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 23:06:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:06:09,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 23:06:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:06:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:06:09,306 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:06:09,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:06:09,393 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:06:09,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:06:09,397 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:06:09,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:06:09 BoogieIcfgContainer [2023-02-18 23:06:09,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:06:09,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:06:09,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:06:09,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:06:09,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:06:09" (1/3) ... [2023-02-18 23:06:09,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736222ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:06:09, skipping insertion in model container [2023-02-18 23:06:09,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:06:09" (2/3) ... [2023-02-18 23:06:09,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736222ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:06:09, skipping insertion in model container [2023-02-18 23:06:09,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:06:09" (3/3) ... [2023-02-18 23:06:09,404 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark41_conjunctive.i [2023-02-18 23:06:09,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:06:09,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-02-18 23:06:09,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:06:09,458 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;@20999307, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:06:09,458 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-02-18 23:06:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:09,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:06:09,466 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:09,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:06:09,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:09,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-18 23:06:09,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:09,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53025002] [2023-02-18 23:06:09,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:09,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:09,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:09,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53025002] [2023-02-18 23:06:09,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53025002] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:09,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:09,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:09,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939887926] [2023-02-18 23:06:09,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:09,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:09,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:09,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:09,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:09,642 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:09,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:09,742 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2023-02-18 23:06:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:06:09,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:06:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:09,749 INFO L225 Difference]: With dead ends: 48 [2023-02-18 23:06:09,749 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 23:06:09,753 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 [2023-02-18 23:06:09,755 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:09,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 36 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:06:09,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 23:06:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 23:06:09,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.5625) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:09,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-02-18 23:06:09,777 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 5 [2023-02-18 23:06:09,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:09,777 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-02-18 23:06:09,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:09,778 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-02-18 23:06:09,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:06:09,778 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:09,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:06:09,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:06:09,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:09,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-18 23:06:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:09,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209733221] [2023-02-18 23:06:09,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:09,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:09,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:09,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209733221] [2023-02-18 23:06:09,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209733221] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:09,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:09,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:09,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884789474] [2023-02-18 23:06:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:09,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:09,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:09,837 INFO L87 Difference]: Start difference. First operand 25 states and 25 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) [2023-02-18 23:06:09,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:09,887 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2023-02-18 23:06:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:06:09,888 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 [2023-02-18 23:06:09,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:09,888 INFO L225 Difference]: With dead ends: 39 [2023-02-18 23:06:09,888 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 23:06:09,889 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 [2023-02-18 23:06:09,890 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:09,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 39 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 23:06:09,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2023-02-18 23:06:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.5263157894736843) 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) [2023-02-18 23:06:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-18 23:06:09,894 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 6 [2023-02-18 23:06:09,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:09,894 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-18 23:06:09,894 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) [2023-02-18 23:06:09,894 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-18 23:06:09,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:06:09,895 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:09,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:09,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:06:09,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:09,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-18 23:06:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:09,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664983464] [2023-02-18 23:06:09,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:09,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:09,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:09,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664983464] [2023-02-18 23:06:09,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664983464] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:09,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:09,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:09,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444980277] [2023-02-18 23:06:09,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:09,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:09,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:09,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:09,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:09,977 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) 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) [2023-02-18 23:06:10,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,006 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-18 23:06:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:06:10,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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 [2023-02-18 23:06:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,007 INFO L225 Difference]: With dead ends: 28 [2023-02-18 23:06:10,007 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 23:06:10,007 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 [2023-02-18 23:06:10,008 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 23:06:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-18 23:06:10,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.4736842105263157) 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) [2023-02-18 23:06:10,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-02-18 23:06:10,011 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 7 [2023-02-18 23:06:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,011 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-02-18 23:06:10,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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) [2023-02-18 23:06:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-02-18 23:06:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:06:10,012 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:06:10,012 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1806982231, now seen corresponding path program 1 times [2023-02-18 23:06:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533190733] [2023-02-18 23:06:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533190733] [2023-02-18 23:06:10,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533190733] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:10,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359102762] [2023-02-18 23:06:10,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:10,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:10,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:10,054 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) 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) [2023-02-18 23:06:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,091 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2023-02-18 23:06:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:06:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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 [2023-02-18 23:06:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,092 INFO L225 Difference]: With dead ends: 37 [2023-02-18 23:06:10,092 INFO L226 Difference]: Without dead ends: 36 [2023-02-18 23:06:10,093 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 [2023-02-18 23:06:10,099 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 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 [2023-02-18 23:06:10,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-18 23:06:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2023-02-18 23:06:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2023-02-18 23:06:10,108 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2023-02-18 23:06:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,108 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2023-02-18 23:06:10,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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) [2023-02-18 23:06:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2023-02-18 23:06:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:06:10,110 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:06:10,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-18 23:06:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437207561] [2023-02-18 23:06:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437207561] [2023-02-18 23:06:10,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437207561] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:10,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358845312] [2023-02-18 23:06:10,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:10,149 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,173 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2023-02-18 23:06:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:06:10,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:06:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,174 INFO L225 Difference]: With dead ends: 39 [2023-02-18 23:06:10,174 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 23:06:10,175 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 [2023-02-18 23:06:10,175 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 38 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 23:06:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2023-02-18 23:06:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 31 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) [2023-02-18 23:06:10,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-18 23:06:10,179 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 8 [2023-02-18 23:06:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,179 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-18 23:06:10,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-18 23:06:10,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:06:10,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 23:06:10,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,181 INFO L85 PathProgramCache]: Analyzing trace with hash 181874382, now seen corresponding path program 1 times [2023-02-18 23:06:10,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552028767] [2023-02-18 23:06:10,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552028767] [2023-02-18 23:06:10,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552028767] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:10,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622287842] [2023-02-18 23:06:10,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:10,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:10,204 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,224 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2023-02-18 23:06:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:06:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:06:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,225 INFO L225 Difference]: With dead ends: 34 [2023-02-18 23:06:10,225 INFO L226 Difference]: Without dead ends: 33 [2023-02-18 23:06:10,225 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 [2023-02-18 23:06:10,225 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-18 23:06:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-18 23:06:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.36) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2023-02-18 23:06:10,229 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 8 [2023-02-18 23:06:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,229 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2023-02-18 23:06:10,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2023-02-18 23:06:10,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 23:06:10,230 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 23:06:10,230 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2023-02-18 23:06:10,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708885312] [2023-02-18 23:06:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708885312] [2023-02-18 23:06:10,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708885312] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:06:10,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134766150] [2023-02-18 23:06:10,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:06:10,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:06:10,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:06:10,255 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,267 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2023-02-18 23:06:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:06:10,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-18 23:06:10,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,268 INFO L225 Difference]: With dead ends: 40 [2023-02-18 23:06:10,269 INFO L226 Difference]: Without dead ends: 39 [2023-02-18 23:06:10,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:06:10,269 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-18 23:06:10,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2023-02-18 23:06:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2023-02-18 23:06:10,272 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 9 [2023-02-18 23:06:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,273 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2023-02-18 23:06:10,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2023-02-18 23:06:10,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 23:06:10,273 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 23:06:10,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1343138617, now seen corresponding path program 1 times [2023-02-18 23:06:10,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534219821] [2023-02-18 23:06:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534219821] [2023-02-18 23:06:10,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534219821] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:06:10,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467560160] [2023-02-18 23:06:10,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:06:10,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:06:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:06:10,319 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,357 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2023-02-18 23:06:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:06:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-18 23:06:10,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,358 INFO L225 Difference]: With dead ends: 38 [2023-02-18 23:06:10,358 INFO L226 Difference]: Without dead ends: 37 [2023-02-18 23:06:10,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:06:10,359 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-18 23:06:10,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2023-02-18 23:06:10,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 34 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2023-02-18 23:06:10,362 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 9 [2023-02-18 23:06:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,362 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2023-02-18 23:06:10,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2023-02-18 23:06:10,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:06:10,363 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 23:06:10,363 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2023-02-18 23:06:10,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185884759] [2023-02-18 23:06:10,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185884759] [2023-02-18 23:06:10,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185884759] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:06:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207926678] [2023-02-18 23:06:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:06:10,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:06:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:06:10,380 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2023-02-18 23:06:10,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,394 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2023-02-18 23:06:10,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:06:10,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2023-02-18 23:06:10,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,395 INFO L225 Difference]: With dead ends: 35 [2023-02-18 23:06:10,395 INFO L226 Difference]: Without dead ends: 34 [2023-02-18 23:06:10,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:06:10,396 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-18 23:06:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-18 23:06:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2023-02-18 23:06:10,403 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 10 [2023-02-18 23:06:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2023-02-18 23:06:10,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2023-02-18 23:06:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2023-02-18 23:06:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:06:10,404 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-18 23:06:10,405 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1312375760, now seen corresponding path program 1 times [2023-02-18 23:06:10,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302774451] [2023-02-18 23:06:10,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302774451] [2023-02-18 23:06:10,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302774451] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:06:10,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503287280] [2023-02-18 23:06:10,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:06:10,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:06:10,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:06:10,439 INFO L87 Difference]: Start difference. First operand 34 states and 35 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) [2023-02-18 23:06:10,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,467 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2023-02-18 23:06:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:06:10,467 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 [2023-02-18 23:06:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,468 INFO L225 Difference]: With dead ends: 36 [2023-02-18 23:06:10,469 INFO L226 Difference]: Without dead ends: 29 [2023-02-18 23:06:10,469 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 [2023-02-18 23:06:10,470 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-18 23:06:10,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-02-18 23:06:10,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 28 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) [2023-02-18 23:06:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2023-02-18 23:06:10,475 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 10 [2023-02-18 23:06:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,475 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2023-02-18 23:06:10,476 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) [2023-02-18 23:06:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2023-02-18 23:06:10,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-18 23:06:10,477 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-18 23:06:10,477 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2001134753, now seen corresponding path program 1 times [2023-02-18 23:06:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689073311] [2023-02-18 23:06:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689073311] [2023-02-18 23:06:10,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689073311] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:10,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971418097] [2023-02-18 23:06:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:10,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:06:10,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:06:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:06:10,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971418097] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:10,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:10,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-18 23:06:10,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122527890] [2023-02-18 23:06:10,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 23:06:10,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:10,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 23:06:10,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-18 23:06:10,663 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 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) [2023-02-18 23:06:10,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:10,748 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2023-02-18 23:06:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 23:06:10,749 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 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) Word has length 13 [2023-02-18 23:06:10,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:10,749 INFO L225 Difference]: With dead ends: 82 [2023-02-18 23:06:10,749 INFO L226 Difference]: Without dead ends: 81 [2023-02-18 23:06:10,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-18 23:06:10,750 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 74 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:10,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 67 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:06:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-02-18 23:06:10,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 47. [2023-02-18 23:06:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.35) internal successors, (54), 46 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2023-02-18 23:06:10,753 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 13 [2023-02-18 23:06:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:10,753 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2023-02-18 23:06:10,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 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) [2023-02-18 23:06:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2023-02-18 23:06:10,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-18 23:06:10,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:10,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:10,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 23:06:10,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-18 23:06:10,958 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:10,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:10,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1905680795, now seen corresponding path program 1 times [2023-02-18 23:06:10,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:10,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826494074] [2023-02-18 23:06:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:10,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:10,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:10,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826494074] [2023-02-18 23:06:10,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826494074] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:10,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:10,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 23:06:10,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976343667] [2023-02-18 23:06:10,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:10,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 23:06:10,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:11,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 23:06:11,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-18 23:06:11,000 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:11,031 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2023-02-18 23:06:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 23:06:11,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-18 23:06:11,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:11,033 INFO L225 Difference]: With dead ends: 47 [2023-02-18 23:06:11,033 INFO L226 Difference]: Without dead ends: 46 [2023-02-18 23:06:11,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-02-18 23:06:11,033 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:11,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 35 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:11,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-18 23:06:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-02-18 23:06:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2023-02-18 23:06:11,041 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 14 [2023-02-18 23:06:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:11,041 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2023-02-18 23:06:11,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2023-02-18 23:06:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 23:06:11,042 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:11,042 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:11,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-18 23:06:11,042 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:11,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:11,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1054852641, now seen corresponding path program 1 times [2023-02-18 23:06:11,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:11,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039455427] [2023-02-18 23:06:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:11,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039455427] [2023-02-18 23:06:11,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039455427] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:11,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409938197] [2023-02-18 23:06:11,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:11,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:11,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:11,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:06:11,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:06:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:11,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:06:11,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409938197] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:11,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:11,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-18 23:06:11,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504084398] [2023-02-18 23:06:11,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:11,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 23:06:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:11,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 23:06:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-18 23:06:11,142 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) [2023-02-18 23:06:11,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:11,197 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2023-02-18 23:06:11,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 23:06:11,197 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) Word has length 15 [2023-02-18 23:06:11,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:11,197 INFO L225 Difference]: With dead ends: 78 [2023-02-18 23:06:11,198 INFO L226 Difference]: Without dead ends: 77 [2023-02-18 23:06:11,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-18 23:06:11,198 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:11,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 69 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:11,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-18 23:06:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 48. [2023-02-18 23:06:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-02-18 23:06:11,201 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 15 [2023-02-18 23:06:11,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:11,201 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-02-18 23:06:11,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 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) [2023-02-18 23:06:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-02-18 23:06:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 23:06:11,201 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:11,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:11,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:11,405 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,SelfDestructingSolverStorable12 [2023-02-18 23:06:11,405 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:11,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1053437568, now seen corresponding path program 1 times [2023-02-18 23:06:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:11,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717377932] [2023-02-18 23:06:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:11,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:11,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717377932] [2023-02-18 23:06:11,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717377932] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:11,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314301345] [2023-02-18 23:06:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:11,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:11,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:11,455 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) [2023-02-18 23:06:11,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:06:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:11,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:06:11,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:11,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314301345] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:11,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:11,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-02-18 23:06:11,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110319139] [2023-02-18 23:06:11,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:11,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 23:06:11,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:11,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 23:06:11,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-02-18 23:06:11,530 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) [2023-02-18 23:06:11,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:11,590 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2023-02-18 23:06:11,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 23:06:11,590 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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 15 [2023-02-18 23:06:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:11,591 INFO L225 Difference]: With dead ends: 62 [2023-02-18 23:06:11,591 INFO L226 Difference]: Without dead ends: 61 [2023-02-18 23:06:11,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2023-02-18 23:06:11,592 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:11,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 65 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:11,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-18 23:06:11,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2023-02-18 23:06:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 51 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2023-02-18 23:06:11,594 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 15 [2023-02-18 23:06:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:11,594 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2023-02-18 23:06:11,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 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) [2023-02-18 23:06:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2023-02-18 23:06:11,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 23:06:11,595 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:11,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:11,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:11,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:11,799 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:11,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1659306441, now seen corresponding path program 1 times [2023-02-18 23:06:11,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:11,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110354940] [2023-02-18 23:06:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:11,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:11,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110354940] [2023-02-18 23:06:11,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110354940] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:11,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597279455] [2023-02-18 23:06:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:11,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:11,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:11,819 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) [2023-02-18 23:06:11,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:06:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:11,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 23:06:11,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:11,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597279455] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:11,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:11,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 23:06:11,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925851095] [2023-02-18 23:06:11,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:11,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:06:11,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:11,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:06:11,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:06:11,864 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:11,885 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2023-02-18 23:06:11,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:06:11,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 [2023-02-18 23:06:11,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:11,887 INFO L225 Difference]: With dead ends: 75 [2023-02-18 23:06:11,887 INFO L226 Difference]: Without dead ends: 74 [2023-02-18 23:06:11,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:06:11,888 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:11,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 65 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:11,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-18 23:06:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 53. [2023-02-18 23:06:11,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2023-02-18 23:06:11,898 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 16 [2023-02-18 23:06:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:11,899 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2023-02-18 23:06:11,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:11,899 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2023-02-18 23:06:11,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 23:06:11,900 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:11,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:11,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:12,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-18 23:06:12,105 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:12,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1703173689, now seen corresponding path program 1 times [2023-02-18 23:06:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:12,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059991125] [2023-02-18 23:06:12,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:12,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:12,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:12,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059991125] [2023-02-18 23:06:12,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059991125] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:12,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140900709] [2023-02-18 23:06:12,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:12,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:12,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:12,157 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) [2023-02-18 23:06:12,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:06:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:12,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 23:06:12,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:12,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:12,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:06:12,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140900709] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:12,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-18 23:06:12,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 16 [2023-02-18 23:06:12,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768836168] [2023-02-18 23:06:12,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:12,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:06:12,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:12,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:06:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-02-18 23:06:12,261 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:12,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:12,298 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2023-02-18 23:06:12,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 23:06:12,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-18 23:06:12,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:12,299 INFO L225 Difference]: With dead ends: 53 [2023-02-18 23:06:12,300 INFO L226 Difference]: Without dead ends: 52 [2023-02-18 23:06:12,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2023-02-18 23:06:12,300 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:12,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-18 23:06:12,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-02-18 23:06:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 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) [2023-02-18 23:06:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2023-02-18 23:06:12,302 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 16 [2023-02-18 23:06:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:12,302 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2023-02-18 23:06:12,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:12,303 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2023-02-18 23:06:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 23:06:12,303 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:12,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:12,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:12,511 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,SelfDestructingSolverStorable15 [2023-02-18 23:06:12,512 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:12,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1258776734, now seen corresponding path program 1 times [2023-02-18 23:06:12,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:12,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532190897] [2023-02-18 23:06:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:12,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:06:12,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:12,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532190897] [2023-02-18 23:06:12,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532190897] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:06:12,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:06:12,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 23:06:12,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949628443] [2023-02-18 23:06:12,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:06:12,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:06:12,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:12,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:06:12,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:06:12,548 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:12,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:12,576 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2023-02-18 23:06:12,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:06:12,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 [2023-02-18 23:06:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:12,577 INFO L225 Difference]: With dead ends: 52 [2023-02-18 23:06:12,577 INFO L226 Difference]: Without dead ends: 45 [2023-02-18 23:06:12,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-02-18 23:06:12,578 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:12,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 12 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-18 23:06:12,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-02-18 23:06:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 44 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) [2023-02-18 23:06:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2023-02-18 23:06:12,584 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 17 [2023-02-18 23:06:12,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:12,584 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2023-02-18 23:06:12,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:12,584 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2023-02-18 23:06:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 23:06:12,585 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:12,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:12,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-18 23:06:12,585 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:12,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:12,586 INFO L85 PathProgramCache]: Analyzing trace with hash 179577536, now seen corresponding path program 2 times [2023-02-18 23:06:12,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:12,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400277283] [2023-02-18 23:06:12,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:12,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:12,674 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:12,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400277283] [2023-02-18 23:06:12,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400277283] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654740564] [2023-02-18 23:06:12,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:06:12,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:12,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:12,676 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) [2023-02-18 23:06:12,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:06:12,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:06:12,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:12,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-18 23:06:12,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:12,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:12,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654740564] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:12,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:12,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2023-02-18 23:06:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657331180] [2023-02-18 23:06:12,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:12,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-02-18 23:06:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-02-18 23:06:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2023-02-18 23:06:12,858 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:13,028 INFO L93 Difference]: Finished difference Result 87 states and 90 transitions. [2023-02-18 23:06:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-18 23:06:13,028 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 states have internal predecessors, (83), 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 [2023-02-18 23:06:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:13,030 INFO L225 Difference]: With dead ends: 87 [2023-02-18 23:06:13,030 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 23:06:13,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2023-02-18 23:06:13,031 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 90 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:13,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 119 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:06:13,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 23:06:13,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 61. [2023-02-18 23:06:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 60 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-02-18 23:06:13,033 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 29 [2023-02-18 23:06:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:13,034 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-02-18 23:06:13,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.7666666666666666) internal successors, (83), 31 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-02-18 23:06:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 23:06:13,035 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:13,035 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 23:06:13,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-18 23:06:13,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 23:06:13,240 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:13,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:13,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1492176557, now seen corresponding path program 2 times [2023-02-18 23:06:13,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:13,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026656898] [2023-02-18 23:06:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:13,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:13,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:13,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026656898] [2023-02-18 23:06:13,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026656898] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:13,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878348795] [2023-02-18 23:06:13,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:06:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:13,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:13,305 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) [2023-02-18 23:06:13,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:06:13,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:06:13,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:13,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:06:13,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:13,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:13,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878348795] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:13,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:13,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-18 23:06:13,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590275806] [2023-02-18 23:06:13,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:13,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 23:06:13,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:13,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 23:06:13,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-18 23:06:13,441 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) [2023-02-18 23:06:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:13,548 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2023-02-18 23:06:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 23:06:13,548 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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 34 [2023-02-18 23:06:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:13,549 INFO L225 Difference]: With dead ends: 110 [2023-02-18 23:06:13,549 INFO L226 Difference]: Without dead ends: 109 [2023-02-18 23:06:13,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-18 23:06:13,550 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 86 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:13,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 99 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:13,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-02-18 23:06:13,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2023-02-18 23:06:13,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.2125) internal successors, (97), 83 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 97 transitions. [2023-02-18 23:06:13,552 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 97 transitions. Word has length 34 [2023-02-18 23:06:13,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:13,552 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 97 transitions. [2023-02-18 23:06:13,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.142857142857143) internal successors, (66), 22 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) [2023-02-18 23:06:13,553 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 97 transitions. [2023-02-18 23:06:13,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-18 23:06:13,553 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:13,553 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 23:06:13,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:13,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:13,757 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:13,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:13,758 INFO L85 PathProgramCache]: Analyzing trace with hash -537403921, now seen corresponding path program 2 times [2023-02-18 23:06:13,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:13,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388201118] [2023-02-18 23:06:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:13,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388201118] [2023-02-18 23:06:13,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388201118] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417917336] [2023-02-18 23:06:13,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:06:13,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:13,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:13,823 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) [2023-02-18 23:06:13,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 23:06:13,870 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:06:13,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:13,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:06:13,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:13,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:13,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417917336] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:13,965 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:13,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-18 23:06:13,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540860901] [2023-02-18 23:06:13,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:13,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 23:06:13,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:13,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 23:06:13,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-18 23:06:13,966 INFO L87 Difference]: Start difference. First operand 84 states and 97 transitions. Second operand has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 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) [2023-02-18 23:06:14,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:14,061 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2023-02-18 23:06:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 23:06:14,062 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-02-18 23:06:14,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:14,062 INFO L225 Difference]: With dead ends: 107 [2023-02-18 23:06:14,062 INFO L226 Difference]: Without dead ends: 106 [2023-02-18 23:06:14,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-18 23:06:14,064 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 71 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:14,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 117 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:14,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-02-18 23:06:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 86. [2023-02-18 23:06:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.146341463414634) internal successors, (94), 85 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2023-02-18 23:06:14,067 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 36 [2023-02-18 23:06:14,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:14,067 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2023-02-18 23:06:14,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.3333333333333335) internal successors, (70), 22 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) [2023-02-18 23:06:14,067 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2023-02-18 23:06:14,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-18 23:06:14,068 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:14,068 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2023-02-18 23:06:14,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:14,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:14,272 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 520347689, now seen corresponding path program 2 times [2023-02-18 23:06:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:14,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360572849] [2023-02-18 23:06:14,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:14,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:14,303 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:14,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:14,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360572849] [2023-02-18 23:06:14,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360572849] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:14,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47523417] [2023-02-18 23:06:14,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:06:14,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:14,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:14,305 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) [2023-02-18 23:06:14,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 23:06:14,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:06:14,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:14,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:06:14,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:14,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:14,374 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:14,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47523417] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:14,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:14,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 23:06:14,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853581260] [2023-02-18 23:06:14,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:14,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:06:14,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:14,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:06:14,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:06:14,375 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:14,393 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2023-02-18 23:06:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 23:06:14,394 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 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 37 [2023-02-18 23:06:14,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:14,394 INFO L225 Difference]: With dead ends: 103 [2023-02-18 23:06:14,394 INFO L226 Difference]: Without dead ends: 102 [2023-02-18 23:06:14,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:06:14,395 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:14,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 102 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-02-18 23:06:14,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 87. [2023-02-18 23:06:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.0843373493975903) internal successors, (90), 86 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:14,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2023-02-18 23:06:14,398 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 37 [2023-02-18 23:06:14,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:14,398 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2023-02-18 23:06:14,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:14,398 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2023-02-18 23:06:14,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-18 23:06:14,398 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:14,398 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:14,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:14,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:14,603 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:14,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1591035072, now seen corresponding path program 3 times [2023-02-18 23:06:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:14,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611419537] [2023-02-18 23:06:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:14,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:14,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611419537] [2023-02-18 23:06:14,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611419537] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:14,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594245030] [2023-02-18 23:06:14,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:06:14,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:14,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:14,745 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) [2023-02-18 23:06:14,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 23:06:14,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-18 23:06:14,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:14,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 23:06:14,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:14,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:15,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594245030] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:15,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:15,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 62 [2023-02-18 23:06:15,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100445819] [2023-02-18 23:06:15,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:15,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-02-18 23:06:15,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-02-18 23:06:15,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=3315, Unknown=0, NotChecked=0, Total=3906 [2023-02-18 23:06:15,303 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 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) [2023-02-18 23:06:15,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:15,779 INFO L93 Difference]: Finished difference Result 165 states and 172 transitions. [2023-02-18 23:06:15,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-02-18 23:06:15,779 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 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) Word has length 57 [2023-02-18 23:06:15,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:15,780 INFO L225 Difference]: With dead ends: 165 [2023-02-18 23:06:15,780 INFO L226 Difference]: Without dead ends: 132 [2023-02-18 23:06:15,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3544 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1476, Invalid=7454, Unknown=0, NotChecked=0, Total=8930 [2023-02-18 23:06:15,785 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 240 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:15,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 153 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:06:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-02-18 23:06:15,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 117. [2023-02-18 23:06:15,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 113 states have (on average 1.1415929203539823) internal successors, (129), 116 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2023-02-18 23:06:15,788 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 57 [2023-02-18 23:06:15,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:15,788 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2023-02-18 23:06:15,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 63 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) [2023-02-18 23:06:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2023-02-18 23:06:15,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-18 23:06:15,789 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:15,789 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 23:06:15,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:15,999 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,SelfDestructingSolverStorable21 [2023-02-18 23:06:15,999 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:15,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1429047789, now seen corresponding path program 3 times [2023-02-18 23:06:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:16,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167054850] [2023-02-18 23:06:16,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:16,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:16,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:16,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167054850] [2023-02-18 23:06:16,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167054850] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:16,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815366784] [2023-02-18 23:06:16,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:06:16,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:16,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:16,250 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) [2023-02-18 23:06:16,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 23:06:16,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:06:16,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:16,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:06:16,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:16,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:16,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815366784] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:16,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:16,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-02-18 23:06:16,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027231709] [2023-02-18 23:06:16,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:16,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-18 23:06:16,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-18 23:06:16,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-02-18 23:06:16,724 INFO L87 Difference]: Start difference. First operand 117 states and 129 transitions. Second operand has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:17,072 INFO L93 Difference]: Finished difference Result 226 states and 237 transitions. [2023-02-18 23:06:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-18 23:06:17,072 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 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 76 [2023-02-18 23:06:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:17,075 INFO L225 Difference]: With dead ends: 226 [2023-02-18 23:06:17,075 INFO L226 Difference]: Without dead ends: 225 [2023-02-18 23:06:17,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 119 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2023-02-18 23:06:17,076 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 264 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:17,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 215 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:06:17,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-02-18 23:06:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 168. [2023-02-18 23:06:17,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.201219512195122) internal successors, (197), 167 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 197 transitions. [2023-02-18 23:06:17,086 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 197 transitions. Word has length 76 [2023-02-18 23:06:17,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:17,086 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 197 transitions. [2023-02-18 23:06:17,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.3333333333333335) internal successors, (150), 46 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 197 transitions. [2023-02-18 23:06:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-02-18 23:06:17,087 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:17,087 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 23:06:17,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:17,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-02-18 23:06:17,291 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:17,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:17,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1074607825, now seen corresponding path program 3 times [2023-02-18 23:06:17,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:17,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362987272] [2023-02-18 23:06:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:17,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:17,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362987272] [2023-02-18 23:06:17,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362987272] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:17,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89261552] [2023-02-18 23:06:17,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:06:17,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:17,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:17,504 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) [2023-02-18 23:06:17,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 23:06:17,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:06:17,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:17,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 23:06:17,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:17,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:17,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89261552] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:17,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:17,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-02-18 23:06:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881353910] [2023-02-18 23:06:17,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:17,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-18 23:06:17,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:17,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-18 23:06:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-02-18 23:06:17,981 INFO L87 Difference]: Start difference. First operand 168 states and 197 transitions. Second operand has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:18,288 INFO L93 Difference]: Finished difference Result 217 states and 228 transitions. [2023-02-18 23:06:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-18 23:06:18,288 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 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 78 [2023-02-18 23:06:18,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:18,289 INFO L225 Difference]: With dead ends: 217 [2023-02-18 23:06:18,289 INFO L226 Difference]: Without dead ends: 216 [2023-02-18 23:06:18,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 122 SyntacticMatches, 11 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1017 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2023-02-18 23:06:18,290 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 236 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:18,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 173 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:06:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-02-18 23:06:18,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 170. [2023-02-18 23:06:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 166 states have (on average 1.1325301204819278) internal successors, (188), 169 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 188 transitions. [2023-02-18 23:06:18,293 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 188 transitions. Word has length 78 [2023-02-18 23:06:18,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:18,294 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 188 transitions. [2023-02-18 23:06:18,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:18,294 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 188 transitions. [2023-02-18 23:06:18,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-02-18 23:06:18,294 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:18,294 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2023-02-18 23:06:18,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:18,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-02-18 23:06:18,499 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:18,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1046895849, now seen corresponding path program 3 times [2023-02-18 23:06:18,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:18,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804781149] [2023-02-18 23:06:18,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:18,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:18,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:18,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804781149] [2023-02-18 23:06:18,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804781149] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:18,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417064271] [2023-02-18 23:06:18,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:06:18,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:18,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:18,592 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) [2023-02-18 23:06:18,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 23:06:18,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 23:06:18,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:18,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:06:18,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:18,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:18,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417064271] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:18,816 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:18,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 23:06:18,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034437711] [2023-02-18 23:06:18,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:18,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 23:06:18,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:18,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 23:06:18,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:06:18,817 INFO L87 Difference]: Start difference. First operand 170 states and 188 transitions. Second operand has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:18,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:18,861 INFO L93 Difference]: Finished difference Result 207 states and 218 transitions. [2023-02-18 23:06:18,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 23:06:18,862 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 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 79 [2023-02-18 23:06:18,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:18,862 INFO L225 Difference]: With dead ends: 207 [2023-02-18 23:06:18,862 INFO L226 Difference]: Without dead ends: 206 [2023-02-18 23:06:18,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 137 SyntacticMatches, 9 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 23:06:18,863 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 67 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:18,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 193 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:06:18,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-02-18 23:06:18,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 171. [2023-02-18 23:06:18,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.0658682634730539) internal successors, (178), 170 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2023-02-18 23:06:18,866 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 79 [2023-02-18 23:06:18,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:18,866 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2023-02-18 23:06:18,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.782608695652174) internal successors, (156), 24 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:18,867 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2023-02-18 23:06:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-02-18 23:06:18,867 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:18,867 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:18,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:19,071 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,SelfDestructingSolverStorable24 [2023-02-18 23:06:19,071 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:19,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 236104768, now seen corresponding path program 4 times [2023-02-18 23:06:19,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:19,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283810416] [2023-02-18 23:06:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:19,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:19,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:19,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283810416] [2023-02-18 23:06:19,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283810416] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:19,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836317452] [2023-02-18 23:06:19,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:06:19,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:19,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:19,508 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) [2023-02-18 23:06:19,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 23:06:19,557 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:06:19,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:19,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 63 conjunts are in the unsatisfiable core [2023-02-18 23:06:19,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:20,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:21,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836317452] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:21,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:21,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 47, 47] total 126 [2023-02-18 23:06:21,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398601913] [2023-02-18 23:06:21,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:21,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2023-02-18 23:06:21,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:21,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2023-02-18 23:06:21,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2267, Invalid=13735, Unknown=0, NotChecked=0, Total=16002 [2023-02-18 23:06:21,193 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:22,641 INFO L93 Difference]: Finished difference Result 321 states and 336 transitions. [2023-02-18 23:06:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-02-18 23:06:22,641 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 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 113 [2023-02-18 23:06:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:22,642 INFO L225 Difference]: With dead ends: 321 [2023-02-18 23:06:22,642 INFO L226 Difference]: Without dead ends: 256 [2023-02-18 23:06:22,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16296 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5896, Invalid=31934, Unknown=0, NotChecked=0, Total=37830 [2023-02-18 23:06:22,648 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 620 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:22,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 228 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:06:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-02-18 23:06:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2023-02-18 23:06:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 225 states have (on average 1.1244444444444444) internal successors, (253), 228 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 253 transitions. [2023-02-18 23:06:22,653 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 253 transitions. Word has length 113 [2023-02-18 23:06:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:22,653 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 253 transitions. [2023-02-18 23:06:22,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 2.6587301587301586) internal successors, (335), 127 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 253 transitions. [2023-02-18 23:06:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-02-18 23:06:22,655 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:22,655 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 23:06:22,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:22,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:22,862 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:22,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:22,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1207906195, now seen corresponding path program 4 times [2023-02-18 23:06:22,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:22,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59755388] [2023-02-18 23:06:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:23,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:23,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59755388] [2023-02-18 23:06:23,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59755388] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:23,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371788071] [2023-02-18 23:06:23,699 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:06:23,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:23,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:23,700 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) [2023-02-18 23:06:23,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 23:06:23,762 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:06:23,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:23,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 23:06:23,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:24,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:24,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:25,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371788071] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:25,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:25,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2023-02-18 23:06:25,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805548120] [2023-02-18 23:06:25,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:25,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-02-18 23:06:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-02-18 23:06:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2023-02-18 23:06:25,282 INFO L87 Difference]: Start difference. First operand 229 states and 253 transitions. Second operand has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:26,366 INFO L93 Difference]: Finished difference Result 458 states and 481 transitions. [2023-02-18 23:06:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-02-18 23:06:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 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 160 [2023-02-18 23:06:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:26,367 INFO L225 Difference]: With dead ends: 458 [2023-02-18 23:06:26,367 INFO L226 Difference]: Without dead ends: 457 [2023-02-18 23:06:26,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 251 SyntacticMatches, 22 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4721 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2023-02-18 23:06:26,369 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 609 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:26,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 367 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:06:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-02-18 23:06:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 336. [2023-02-18 23:06:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 332 states have (on average 1.1957831325301205) internal successors, (397), 335 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 397 transitions. [2023-02-18 23:06:26,375 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 397 transitions. Word has length 160 [2023-02-18 23:06:26,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:26,375 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 397 transitions. [2023-02-18 23:06:26,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4193548387096775) internal successors, (318), 94 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:26,375 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 397 transitions. [2023-02-18 23:06:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-02-18 23:06:26,376 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:26,376 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 23:06:26,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-18 23:06:26,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-18 23:06:26,581 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1156681809, now seen corresponding path program 4 times [2023-02-18 23:06:26,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:26,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523789590] [2023-02-18 23:06:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:26,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:27,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523789590] [2023-02-18 23:06:27,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523789590] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714004547] [2023-02-18 23:06:27,345 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:06:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:27,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:27,346 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) [2023-02-18 23:06:27,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 23:06:27,410 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:06:27,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:27,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 23:06:27,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:27,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:28,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714004547] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:28,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:28,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2023-02-18 23:06:28,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468772200] [2023-02-18 23:06:28,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:28,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-02-18 23:06:28,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-02-18 23:06:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2023-02-18 23:06:28,902 INFO L87 Difference]: Start difference. First operand 336 states and 397 transitions. Second operand has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:29,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:29,977 INFO L93 Difference]: Finished difference Result 437 states and 460 transitions. [2023-02-18 23:06:29,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-02-18 23:06:29,977 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 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 162 [2023-02-18 23:06:29,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:29,978 INFO L225 Difference]: With dead ends: 437 [2023-02-18 23:06:29,978 INFO L226 Difference]: Without dead ends: 436 [2023-02-18 23:06:29,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 254 SyntacticMatches, 23 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4743 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2023-02-18 23:06:29,985 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 519 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:29,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 316 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:06:29,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-02-18 23:06:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 338. [2023-02-18 23:06:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 334 states have (on average 1.125748502994012) internal successors, (376), 337 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 376 transitions. [2023-02-18 23:06:29,998 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 376 transitions. Word has length 162 [2023-02-18 23:06:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:29,998 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 376 transitions. [2023-02-18 23:06:29,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4623655913978495) internal successors, (322), 94 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 376 transitions. [2023-02-18 23:06:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-02-18 23:06:30,000 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:30,000 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2023-02-18 23:06:30,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-18 23:06:30,203 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,SelfDestructingSolverStorable27 [2023-02-18 23:06:30,204 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:30,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:30,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1497397655, now seen corresponding path program 4 times [2023-02-18 23:06:30,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:30,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045442039] [2023-02-18 23:06:30,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:30,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:30,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:30,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045442039] [2023-02-18 23:06:30,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045442039] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:30,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3932309] [2023-02-18 23:06:30,509 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:06:30,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:30,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:30,510 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) [2023-02-18 23:06:30,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 23:06:30,571 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:06:30,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:30,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:06:30,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:30,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1749 backedges. 0 proven. 1749 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:31,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3932309] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:31,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:31,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 23:06:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297089806] [2023-02-18 23:06:31,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:31,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:06:31,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:06:31,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:06:31,233 INFO L87 Difference]: Start difference. First operand 338 states and 376 transitions. Second operand has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:31,338 INFO L93 Difference]: Finished difference Result 415 states and 438 transitions. [2023-02-18 23:06:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 23:06:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 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 163 [2023-02-18 23:06:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:31,339 INFO L225 Difference]: With dead ends: 415 [2023-02-18 23:06:31,339 INFO L226 Difference]: Without dead ends: 414 [2023-02-18 23:06:31,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 281 SyntacticMatches, 21 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:06:31,340 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 227 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:31,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 366 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:06:31,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2023-02-18 23:06:31,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 339. [2023-02-18 23:06:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 335 states have (on average 1.0567164179104478) internal successors, (354), 338 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:31,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 354 transitions. [2023-02-18 23:06:31,346 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 354 transitions. Word has length 163 [2023-02-18 23:06:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:31,346 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 354 transitions. [2023-02-18 23:06:31,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.8936170212765955) internal successors, (324), 48 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 354 transitions. [2023-02-18 23:06:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-02-18 23:06:31,347 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:31,347 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:06:31,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:31,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-18 23:06:31,552 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:31,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1689416128, now seen corresponding path program 5 times [2023-02-18 23:06:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:31,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575252781] [2023-02-18 23:06:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:31,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:33,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575252781] [2023-02-18 23:06:33,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575252781] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:33,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28097959] [2023-02-18 23:06:33,033 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:06:33,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:33,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:33,034 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:06:33,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 23:06:33,193 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 23:06:33,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:33,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 127 conjunts are in the unsatisfiable core [2023-02-18 23:06:33,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:35,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:38,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28097959] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:38,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:38,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 95, 95] total 254 [2023-02-18 23:06:38,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831569823] [2023-02-18 23:06:38,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:38,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 255 states [2023-02-18 23:06:38,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:38,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 255 interpolants. [2023-02-18 23:06:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8883, Invalid=55887, Unknown=0, NotChecked=0, Total=64770 [2023-02-18 23:06:38,952 INFO L87 Difference]: Start difference. First operand 339 states and 354 transitions. Second operand has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:44,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:44,285 INFO L93 Difference]: Finished difference Result 633 states and 664 transitions. [2023-02-18 23:06:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2023-02-18 23:06:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 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 225 [2023-02-18 23:06:44,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:44,289 INFO L225 Difference]: With dead ends: 633 [2023-02-18 23:06:44,289 INFO L226 Difference]: Without dead ends: 504 [2023-02-18 23:06:44,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69640 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=23568, Invalid=132062, Unknown=0, NotChecked=0, Total=155630 [2023-02-18 23:06:44,296 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1330 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:44,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 384 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:06:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-02-18 23:06:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 453. [2023-02-18 23:06:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 449 states have (on average 1.1158129175946547) internal successors, (501), 452 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 501 transitions. [2023-02-18 23:06:44,304 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 501 transitions. Word has length 225 [2023-02-18 23:06:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:44,304 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 501 transitions. [2023-02-18 23:06:44,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 255 states, 254 states have (on average 2.641732283464567) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:44,305 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 501 transitions. [2023-02-18 23:06:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-02-18 23:06:44,305 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:44,306 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2023-02-18 23:06:44,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-02-18 23:06:44,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:44,511 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash -734093971, now seen corresponding path program 5 times [2023-02-18 23:06:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:44,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466023715] [2023-02-18 23:06:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:44,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:06:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:47,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:06:47,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466023715] [2023-02-18 23:06:47,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466023715] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:06:47,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100864204] [2023-02-18 23:06:47,802 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:06:47,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:47,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:06:47,803 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:06:47,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-18 23:06:48,161 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:06:48,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:06:48,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 23:06:48,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:06:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:49,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:06:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:06:54,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100864204] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:06:54,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:06:54,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2023-02-18 23:06:54,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736543108] [2023-02-18 23:06:54,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:06:54,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2023-02-18 23:06:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:06:54,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2023-02-18 23:06:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2023-02-18 23:06:54,080 INFO L87 Difference]: Start difference. First operand 453 states and 501 transitions. Second operand has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:58,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:06:58,629 INFO L93 Difference]: Finished difference Result 922 states and 969 transitions. [2023-02-18 23:06:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2023-02-18 23:06:58,629 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 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 328 [2023-02-18 23:06:58,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:06:58,631 INFO L225 Difference]: With dead ends: 922 [2023-02-18 23:06:58,631 INFO L226 Difference]: Without dead ends: 921 [2023-02-18 23:06:58,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 515 SyntacticMatches, 46 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20357 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2023-02-18 23:06:58,635 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1637 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 23:06:58,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 625 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 23:06:58,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-02-18 23:06:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 672. [2023-02-18 23:06:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 668 states have (on average 1.1931137724550898) internal successors, (797), 671 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 797 transitions. [2023-02-18 23:06:58,647 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 797 transitions. Word has length 328 [2023-02-18 23:06:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:06:58,647 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 797 transitions. [2023-02-18 23:06:58,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4603174603174605) internal successors, (654), 190 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:06:58,648 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 797 transitions. [2023-02-18 23:06:58,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-02-18 23:06:58,648 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:06:58,649 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-18 23:06:58,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-18 23:06:58,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:06:58,854 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:06:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:06:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1089667921, now seen corresponding path program 5 times [2023-02-18 23:06:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:06:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301281655] [2023-02-18 23:06:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:06:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:06:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:07:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:01,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:07:01,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301281655] [2023-02-18 23:07:01,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301281655] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:07:01,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976229510] [2023-02-18 23:07:01,921 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:07:01,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:07:01,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:07:01,922 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:07:01,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-18 23:07:02,284 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:07:02,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:07:02,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 95 conjunts are in the unsatisfiable core [2023-02-18 23:07:02,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:07:03,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:03,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:07:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:08,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976229510] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:07:08,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:07:08,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2023-02-18 23:07:08,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372893180] [2023-02-18 23:07:08,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:07:08,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2023-02-18 23:07:08,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:07:08,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2023-02-18 23:07:08,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2023-02-18 23:07:08,097 INFO L87 Difference]: Start difference. First operand 672 states and 797 transitions. Second operand has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:12,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:07:12,566 INFO L93 Difference]: Finished difference Result 877 states and 924 transitions. [2023-02-18 23:07:12,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2023-02-18 23:07:12,566 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 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 330 [2023-02-18 23:07:12,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:07:12,568 INFO L225 Difference]: With dead ends: 877 [2023-02-18 23:07:12,568 INFO L226 Difference]: Without dead ends: 876 [2023-02-18 23:07:12,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 518 SyntacticMatches, 47 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20403 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2023-02-18 23:07:12,571 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1215 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:07:12,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 590 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:07:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2023-02-18 23:07:12,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 674. [2023-02-18 23:07:12,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 670 states have (on average 1.1223880597014926) internal successors, (752), 673 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 752 transitions. [2023-02-18 23:07:12,582 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 752 transitions. Word has length 330 [2023-02-18 23:07:12,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:07:12,582 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 752 transitions. [2023-02-18 23:07:12,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4814814814814814) internal successors, (658), 190 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 752 transitions. [2023-02-18 23:07:12,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-02-18 23:07:12,583 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:07:12,583 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2023-02-18 23:07:12,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-18 23:07:12,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-02-18 23:07:12,788 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:07:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:07:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash 580032873, now seen corresponding path program 5 times [2023-02-18 23:07:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:07:12,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287114739] [2023-02-18 23:07:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:07:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:07:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:07:13,955 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:13,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:07:13,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287114739] [2023-02-18 23:07:13,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287114739] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:07:13,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110288716] [2023-02-18 23:07:13,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:07:13,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:07:13,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:07:13,959 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:07:13,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-18 23:07:14,318 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 23:07:14,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:07:14,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 23:07:14,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:07:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:15,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:07:16,851 INFO L134 CoverageAnalysis]: Checked inductivity of 7521 backedges. 0 proven. 7521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:16,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110288716] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:07:16,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:07:16,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 23:07:16,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513424544] [2023-02-18 23:07:16,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:07:16,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 23:07:16,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:07:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 23:07:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:07:16,855 INFO L87 Difference]: Start difference. First operand 674 states and 752 transitions. Second operand has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:07:17,169 INFO L93 Difference]: Finished difference Result 831 states and 878 transitions. [2023-02-18 23:07:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 23:07:17,170 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 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 331 [2023-02-18 23:07:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:07:17,172 INFO L225 Difference]: With dead ends: 831 [2023-02-18 23:07:17,172 INFO L226 Difference]: Without dead ends: 830 [2023-02-18 23:07:17,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 569 SyntacticMatches, 45 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 23:07:17,173 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 602 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:07:17,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 702 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:07:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-02-18 23:07:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 675. [2023-02-18 23:07:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 671 states have (on average 1.052160953800298) internal successors, (706), 674 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 706 transitions. [2023-02-18 23:07:17,183 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 706 transitions. Word has length 331 [2023-02-18 23:07:17,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:07:17,184 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 706 transitions. [2023-02-18 23:07:17,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.947368421052632) internal successors, (660), 96 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:07:17,184 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 706 transitions. [2023-02-18 23:07:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-02-18 23:07:17,185 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:07:17,186 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:07:17,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-18 23:07:17,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-02-18 23:07:17,390 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:07:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:07:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1620094400, now seen corresponding path program 6 times [2023-02-18 23:07:17,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:07:17,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167580489] [2023-02-18 23:07:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:07:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:07:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:07:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:23,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:07:23,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167580489] [2023-02-18 23:07:23,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167580489] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:07:23,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528338147] [2023-02-18 23:07:23,270 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:07:23,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:07:23,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:07:23,272 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:07:23,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-18 23:07:23,817 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-18 23:07:23,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:07:23,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 130 conjunts are in the unsatisfiable core [2023-02-18 23:07:23,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:07:31,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:31,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:07:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:07:47,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528338147] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:07:47,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:07:47,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 388 [2023-02-18 23:07:47,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708265827] [2023-02-18 23:07:47,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:07:47,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 389 states [2023-02-18 23:07:47,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:07:47,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 389 interpolants. [2023-02-18 23:07:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20889, Invalid=130043, Unknown=0, NotChecked=0, Total=150932 [2023-02-18 23:07:47,122 INFO L87 Difference]: Start difference. First operand 675 states and 706 transitions. Second operand has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:08:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:08:30,679 INFO L93 Difference]: Finished difference Result 1229 states and 1323 transitions. [2023-02-18 23:08:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 446 states. [2023-02-18 23:08:30,680 INFO L78 Accepts]: Start accepts. Automaton has has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 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 449 [2023-02-18 23:08:30,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:08:30,682 INFO L225 Difference]: With dead ends: 1229 [2023-02-18 23:08:30,682 INFO L226 Difference]: Without dead ends: 971 [2023-02-18 23:08:30,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1407 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 768 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166199 ImplicationChecksByTransitivity, 65.8s TimeCoverageRelationStatistics Valid=109693, Invalid=482437, Unknown=0, NotChecked=0, Total=592130 [2023-02-18 23:08:30,709 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3274 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3274 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-18 23:08:30,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3274 Valid, 794 Invalid, 1828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-18 23:08:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2023-02-18 23:08:30,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 901. [2023-02-18 23:08:30,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 897 states have (on average 1.0758082497212933) internal successors, (965), 900 states have internal predecessors, (965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:08:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 965 transitions. [2023-02-18 23:08:30,723 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 965 transitions. Word has length 449 [2023-02-18 23:08:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:08:30,723 INFO L495 AbstractCegarLoop]: Abstraction has 901 states and 965 transitions. [2023-02-18 23:08:30,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 389 states, 388 states have (on average 3.461340206185567) internal successors, (1343), 389 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:08:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 965 transitions. [2023-02-18 23:08:30,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2023-02-18 23:08:30,726 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:08:30,726 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2023-02-18 23:08:30,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-18 23:08:30,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:08:30,938 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:08:30,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:08:30,939 INFO L85 PathProgramCache]: Analyzing trace with hash -929613971, now seen corresponding path program 6 times [2023-02-18 23:08:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:08:30,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835808274] [2023-02-18 23:08:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:08:30,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:08:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:08:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:08:45,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:08:45,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835808274] [2023-02-18 23:08:45,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835808274] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:08:45,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736707717] [2023-02-18 23:08:45,383 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:08:45,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:08:45,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:08:45,384 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:08:45,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-18 23:08:46,864 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 23:08:46,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:08:46,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-18 23:08:46,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:08:50,576 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:08:50,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:09:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:09:10,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736707717] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:09:10,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:09:10,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2023-02-18 23:09:10,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883808141] [2023-02-18 23:09:10,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:09:10,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2023-02-18 23:09:10,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:09:10,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2023-02-18 23:09:10,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2023-02-18 23:09:10,202 INFO L87 Difference]: Start difference. First operand 901 states and 965 transitions. Second operand has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:09:34,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:09:34,415 INFO L93 Difference]: Finished difference Result 1818 states and 1913 transitions. [2023-02-18 23:09:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2023-02-18 23:09:34,416 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 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 664 [2023-02-18 23:09:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:09:34,420 INFO L225 Difference]: With dead ends: 1818 [2023-02-18 23:09:34,420 INFO L226 Difference]: Without dead ends: 1817 [2023-02-18 23:09:34,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1707 GetRequests, 1043 SyntacticMatches, 94 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84461 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2023-02-18 23:09:34,432 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 3226 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:09:34,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3226 Valid, 1138 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 23:09:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2023-02-18 23:09:34,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1344. [2023-02-18 23:09:34,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1340 states have (on average 1.1679104477611941) internal successors, (1565), 1343 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:09:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1565 transitions. [2023-02-18 23:09:34,450 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1565 transitions. Word has length 664 [2023-02-18 23:09:34,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:09:34,451 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1565 transitions. [2023-02-18 23:09:34,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4803149606299213) internal successors, (1326), 382 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:09:34,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1565 transitions. [2023-02-18 23:09:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2023-02-18 23:09:34,454 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:09:34,454 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2023-02-18 23:09:34,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-02-18 23:09:34,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:09:34,662 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:09:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:09:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -180633751, now seen corresponding path program 6 times [2023-02-18 23:09:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:09:34,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993490631] [2023-02-18 23:09:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:09:34,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:09:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:09:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:09:39,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:09:39,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993490631] [2023-02-18 23:09:39,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993490631] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:09:39,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195823543] [2023-02-18 23:09:39,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:09:39,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:09:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:09:39,601 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:09:39,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-18 23:09:41,454 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 23:09:41,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:09:41,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 23:09:41,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:09:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:09:44,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:09:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 31161 backedges. 0 proven. 31161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:09:51,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195823543] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:09:51,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:09:51,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 23:09:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293165006] [2023-02-18 23:09:51,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:09:51,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 23:09:51,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:09:51,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 23:09:51,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:09:51,558 INFO L87 Difference]: Start difference. First operand 1344 states and 1565 transitions. Second operand has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:09:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:09:52,901 INFO L93 Difference]: Finished difference Result 1727 states and 1822 transitions. [2023-02-18 23:09:52,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-18 23:09:52,902 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 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 667 [2023-02-18 23:09:52,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:09:52,906 INFO L225 Difference]: With dead ends: 1727 [2023-02-18 23:09:52,906 INFO L226 Difference]: Without dead ends: 1726 [2023-02-18 23:09:52,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1428 GetRequests, 1145 SyntacticMatches, 93 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4278 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 23:09:52,907 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1260 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:09:52,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1383 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:09:52,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2023-02-18 23:09:52,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1347. [2023-02-18 23:09:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1343 states have (on average 1.0975428145941921) internal successors, (1474), 1346 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:09:52,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1474 transitions. [2023-02-18 23:09:52,926 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1474 transitions. Word has length 667 [2023-02-18 23:09:52,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:09:52,926 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 1474 transitions. [2023-02-18 23:09:52,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.973821989528796) internal successors, (1332), 192 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:09:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1474 transitions. [2023-02-18 23:09:52,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2023-02-18 23:09:52,931 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:09:52,931 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 126, 126, 1, 1, 1, 1] [2023-02-18 23:09:52,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-02-18 23:09:53,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-02-18 23:09:53,138 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:09:53,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:09:53,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1159320239, now seen corresponding path program 6 times [2023-02-18 23:09:53,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:09:53,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355530939] [2023-02-18 23:09:53,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:09:53,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:09:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:10:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:10:20,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:10:20,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355530939] [2023-02-18 23:10:20,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355530939] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:10:20,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278478536] [2023-02-18 23:10:20,674 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:10:20,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:10:20,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:10:20,675 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:10:20,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-18 23:10:25,786 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2023-02-18 23:10:25,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:10:25,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 255 conjunts are in the unsatisfiable core [2023-02-18 23:10:25,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:10:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:10:32,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:11:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 55755 backedges. 0 proven. 55755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:11:07,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278478536] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:11:07,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:11:07,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 255, 255] total 509 [2023-02-18 23:11:07,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442675336] [2023-02-18 23:11:07,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:11:07,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 510 states [2023-02-18 23:11:07,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:11:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 510 interpolants. [2023-02-18 23:11:07,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65279, Invalid=194311, Unknown=0, NotChecked=0, Total=259590 [2023-02-18 23:11:07,470 INFO L87 Difference]: Start difference. First operand 1347 states and 1474 transitions. Second operand has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:12:02,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:12:02,385 INFO L93 Difference]: Finished difference Result 2557 states and 2684 transitions. [2023-02-18 23:12:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 510 states. [2023-02-18 23:12:02,386 INFO L78 Accepts]: Start accepts. Automaton has has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 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 890 [2023-02-18 23:12:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:12:02,392 INFO L225 Difference]: With dead ends: 2557 [2023-02-18 23:12:02,392 INFO L226 Difference]: Without dead ends: 2556 [2023-02-18 23:12:02,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2287 GetRequests, 1398 SyntacticMatches, 127 SemanticMatches, 762 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151643 ImplicationChecksByTransitivity, 78.4s TimeCoverageRelationStatistics Valid=162688, Invalid=420244, Unknown=0, NotChecked=0, Total=582932 [2023-02-18 23:12:02,415 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6536 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 23:12:02,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6536 Valid, 1526 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 23:12:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2023-02-18 23:12:02,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 1794. [2023-02-18 23:12:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1790 states have (on average 1.1441340782122904) internal successors, (2048), 1793 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:12:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2048 transitions. [2023-02-18 23:12:02,439 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2048 transitions. Word has length 890 [2023-02-18 23:12:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:12:02,440 INFO L495 AbstractCegarLoop]: Abstraction has 1794 states and 2048 transitions. [2023-02-18 23:12:02,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 510 states, 509 states have (on average 3.493123772102161) internal successors, (1778), 510 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:12:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2048 transitions. [2023-02-18 23:12:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2023-02-18 23:12:02,444 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:12:02,445 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:12:02,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-02-18 23:12:02,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-02-18 23:12:02,653 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:12:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:12:02,653 INFO L85 PathProgramCache]: Analyzing trace with hash 778230336, now seen corresponding path program 7 times [2023-02-18 23:12:02,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:12:02,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575682038] [2023-02-18 23:12:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:12:02,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:12:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:12:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:12:31,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:12:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575682038] [2023-02-18 23:12:31,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575682038] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:12:31,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259832967] [2023-02-18 23:12:31,517 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:12:31,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:12:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:12:31,518 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:12:31,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-02-18 23:12:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:12:31,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 2198 conjuncts, 511 conjunts are in the unsatisfiable core [2023-02-18 23:12:31,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:13:01,853 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:13:01,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:13:57,210 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:13:57,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259832967] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:13:57,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:13:57,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 383, 383] total 1022 [2023-02-18 23:13:57,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172184952] [2023-02-18 23:13:57,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:13:57,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1023 states [2023-02-18 23:13:57,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:13:57,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1023 interpolants. [2023-02-18 23:13:57,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139971, Invalid=905535, Unknown=0, NotChecked=0, Total=1045506 [2023-02-18 23:13:57,266 INFO L87 Difference]: Start difference. First operand 1794 states and 2048 transitions. Second operand has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:16:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:16:05,327 INFO L93 Difference]: Finished difference Result 2441 states and 2568 transitions. [2023-02-18 23:16:05,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 765 states. [2023-02-18 23:16:05,329 INFO L78 Accepts]: Start accepts. Automaton has has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 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 897 [2023-02-18 23:16:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:16:05,334 INFO L225 Difference]: With dead ends: 2441 [2023-02-18 23:16:05,334 INFO L226 Difference]: Without dead ends: 1928 [2023-02-18 23:16:05,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2558 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 1529 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096264 ImplicationChecksByTransitivity, 160.3s TimeCoverageRelationStatistics Valid=360320, Invalid=1982110, Unknown=0, NotChecked=0, Total=2342430 [2023-02-18 23:16:05,573 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6812 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 3156 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6812 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 4371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 3156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-02-18 23:16:05,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6812 Valid, 1128 Invalid, 4371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1215 Valid, 3156 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-02-18 23:16:05,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2023-02-18 23:16:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1797. [2023-02-18 23:16:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1793 states have (on average 1.0736196319018405) internal successors, (1925), 1796 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:16:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 1925 transitions. [2023-02-18 23:16:05,598 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 1925 transitions. Word has length 897 [2023-02-18 23:16:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:16:05,598 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 1925 transitions. [2023-02-18 23:16:05,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 1023 states, 1022 states have (on average 2.6291585127201564) internal successors, (2687), 1023 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:16:05,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 1925 transitions. [2023-02-18 23:16:05,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2023-02-18 23:16:05,607 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:16:05,607 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2023-02-18 23:16:05,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-02-18 23:16:05,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-02-18 23:16:05,818 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 23:16:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:16:05,818 INFO L85 PathProgramCache]: Analyzing trace with hash 750545773, now seen corresponding path program 7 times [2023-02-18 23:16:05,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:16:05,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654978782] [2023-02-18 23:16:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:16:05,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:16:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:17:22,648 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:17:22,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:17:22,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654978782] [2023-02-18 23:17:22,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654978782] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:17:22,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064801310] [2023-02-18 23:17:22,649 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:17:22,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:17:22,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:17:22,650 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:17:22,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-02-18 23:17:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:17:23,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 3268 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-18 23:17:23,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:17:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:17:38,198 INFO L328 TraceCheckSpWp]: Computing backward predicates...