./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Addition02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:09:49,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:09:49,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:09:49,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:09:49,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:09:49,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:09:49,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:09:49,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:09:49,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:09:49,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:09:49,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:09:49,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:09:49,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:09:49,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:09:49,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:09:49,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:09:49,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:09:49,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:09:49,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:09:49,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:09:49,859 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:09:49,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:09:49,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:09:49,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:09:49,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:09:49,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:09:49,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:09:49,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:09:49,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:09:49,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:09:49,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:09:49,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:09:49,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:09:49,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:09:49,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:09:49,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:09:49,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:09:49,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:09:49,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:09:49,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:09:49,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:09:49,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:09:49,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:09:49,895 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:09:49,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:09:49,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:09:49,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:09:49,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:09:49,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:09:49,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:09:49,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:09:49,897 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:09:49,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:09:49,898 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:09:49,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:09:49,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:09:49,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:09:49,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:09:49,899 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:09:49,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:09:49,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:09:49,899 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:09:49,900 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:09:49,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:09:49,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:09:49,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:09:49,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:09:49,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:09:49,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:09:49,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:09:49,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:09:49,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:09:49,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:09:49,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:09:49,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:09:49,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:09:49,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2022-07-13 02:09:50,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:09:50,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:09:50,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:09:50,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:09:50,140 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:09:50,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02.c [2022-07-13 02:09:50,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158760916/58480bbd0e8c46e8acd8829cacf295a3/FLAG5f34daf05 [2022-07-13 02:09:50,532 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:09:50,532 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c [2022-07-13 02:09:50,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158760916/58480bbd0e8c46e8acd8829cacf295a3/FLAG5f34daf05 [2022-07-13 02:09:50,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158760916/58480bbd0e8c46e8acd8829cacf295a3 [2022-07-13 02:09:50,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:09:50,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:09:50,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:09:50,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:09:50,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:09:50,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@825c09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50, skipping insertion in model container [2022-07-13 02:09:50,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:09:50,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:09:50,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2022-07-13 02:09:50,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:09:50,693 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:09:50,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2022-07-13 02:09:50,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:09:50,714 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:09:50,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50 WrapperNode [2022-07-13 02:09:50,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:09:50,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:09:50,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:09:50,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:09:50,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,734 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2022-07-13 02:09:50,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:09:50,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:09:50,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:09:50,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:09:50,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:09:50,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:09:50,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:09:50,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:09:50,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (1/1) ... [2022-07-13 02:09:50,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:09:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:50,832 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) [2022-07-13 02:09:50,839 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 [2022-07-13 02:09:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:09:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:09:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:09:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:09:50,857 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-07-13 02:09:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-07-13 02:09:50,898 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:09:50,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:09:51,073 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:09:51,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:09:51,091 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 02:09:51,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:09:51 BoogieIcfgContainer [2022-07-13 02:09:51,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:09:51,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:09:51,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:09:51,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:09:51,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:09:50" (1/3) ... [2022-07-13 02:09:51,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13251778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:09:51, skipping insertion in model container [2022-07-13 02:09:51,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:09:50" (2/3) ... [2022-07-13 02:09:51,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13251778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:09:51, skipping insertion in model container [2022-07-13 02:09:51,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:09:51" (3/3) ... [2022-07-13 02:09:51,099 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02.c [2022-07-13 02:09:51,110 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:09:51,110 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-13 02:09:51,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:09:51,163 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38e46a84, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1fbe6127 [2022-07-13 02:09:51,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-13 02:09:51,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-13 02:09:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:09:51,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:51,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:51,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:51,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:51,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1314326780, now seen corresponding path program 1 times [2022-07-13 02:09:51,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:51,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311081624] [2022-07-13 02:09:51,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:51,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:51,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:51,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311081624] [2022-07-13 02:09:51,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311081624] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:51,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:51,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:09:51,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321348290] [2022-07-13 02:09:51,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:51,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:09:51,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:51,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:09:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:51,393 INFO L87 Difference]: Start difference. First operand has 41 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:51,508 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-07-13 02:09:51,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:09:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 02:09:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:51,517 INFO L225 Difference]: With dead ends: 73 [2022-07-13 02:09:51,518 INFO L226 Difference]: Without dead ends: 60 [2022-07-13 02:09:51,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:09:51,523 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 55 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:51,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 126 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:09:51,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-07-13 02:09:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2022-07-13 02:09:51,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 46 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-13 02:09:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2022-07-13 02:09:51,553 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 9 [2022-07-13 02:09:51,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:51,553 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-07-13 02:09:51,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,554 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-07-13 02:09:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:09:51,555 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:51,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:51,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:09:51,555 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:51,556 INFO L85 PathProgramCache]: Analyzing trace with hash 2089424586, now seen corresponding path program 1 times [2022-07-13 02:09:51,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:51,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113212735] [2022-07-13 02:09:51,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:51,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:51,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:51,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113212735] [2022-07-13 02:09:51,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113212735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:51,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:51,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:09:51,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414038392] [2022-07-13 02:09:51,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:51,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:09:51,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:51,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:09:51,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:51,593 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:51,679 INFO L93 Difference]: Finished difference Result 98 states and 126 transitions. [2022-07-13 02:09:51,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:09:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 02:09:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:51,681 INFO L225 Difference]: With dead ends: 98 [2022-07-13 02:09:51,682 INFO L226 Difference]: Without dead ends: 96 [2022-07-13 02:09:51,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:09:51,684 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:51,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 106 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:09:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-13 02:09:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2022-07-13 02:09:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 76 states have internal predecessors, (104), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 02:09:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2022-07-13 02:09:51,699 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 10 [2022-07-13 02:09:51,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:51,700 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2022-07-13 02:09:51,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2022-07-13 02:09:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:09:51,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:51,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:51,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:09:51,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:51,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash 347527997, now seen corresponding path program 1 times [2022-07-13 02:09:51,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:51,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892093159] [2022-07-13 02:09:51,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:51,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 02:09:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:51,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:51,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892093159] [2022-07-13 02:09:51,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892093159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:51,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:51,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:09:51,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114431540] [2022-07-13 02:09:51,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:51,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:09:51,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:51,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:09:51,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:09:51,743 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:09:51,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:51,766 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2022-07-13 02:09:51,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:09:51,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-07-13 02:09:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:51,767 INFO L225 Difference]: With dead ends: 90 [2022-07-13 02:09:51,767 INFO L226 Difference]: Without dead ends: 89 [2022-07-13 02:09:51,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:51,770 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 99 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 [2022-07-13 02:09:51,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 99 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:51,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-07-13 02:09:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-07-13 02:09:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.537313432835821) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 02:09:51,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2022-07-13 02:09:51,799 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 11 [2022-07-13 02:09:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:51,800 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2022-07-13 02:09:51,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:09:51,800 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2022-07-13 02:09:51,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:09:51,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:51,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:51,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:09:51,801 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash 347652798, now seen corresponding path program 1 times [2022-07-13 02:09:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:51,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780876725] [2022-07-13 02:09:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:51,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:51,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:51,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780876725] [2022-07-13 02:09:51,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780876725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:51,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:51,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:09:51,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236096355] [2022-07-13 02:09:51,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:51,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:09:51,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:51,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:09:51,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:51,835 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:51,908 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2022-07-13 02:09:51,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:09:51,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 02:09:51,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:51,911 INFO L225 Difference]: With dead ends: 99 [2022-07-13 02:09:51,911 INFO L226 Difference]: Without dead ends: 98 [2022-07-13 02:09:51,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:09:51,912 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 56 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:51,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 65 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:09:51,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-13 02:09:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2022-07-13 02:09:51,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.507462686567164) internal successors, (101), 75 states have internal predecessors, (101), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 02:09:51,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2022-07-13 02:09:51,927 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 11 [2022-07-13 02:09:51,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:51,927 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2022-07-13 02:09:51,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,927 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2022-07-13 02:09:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:09:51,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:51,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:51,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:09:51,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2111533933, now seen corresponding path program 1 times [2022-07-13 02:09:51,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:51,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606675085] [2022-07-13 02:09:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:51,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 02:09:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:51,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:51,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606675085] [2022-07-13 02:09:51,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606675085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:51,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:51,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:09:51,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326383323] [2022-07-13 02:09:51,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:51,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:09:51,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:51,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:09:51,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:09:51,970 INFO L87 Difference]: Start difference. First operand 89 states and 119 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:09:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:51,984 INFO L93 Difference]: Finished difference Result 89 states and 119 transitions. [2022-07-13 02:09:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:09:51,984 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-07-13 02:09:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:51,985 INFO L225 Difference]: With dead ends: 89 [2022-07-13 02:09:51,985 INFO L226 Difference]: Without dead ends: 69 [2022-07-13 02:09:51,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:51,986 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:51,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 99 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:51,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-07-13 02:09:51,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 55. [2022-07-13 02:09:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 50 states have internal predecessors, (60), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-07-13 02:09:51,991 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 12 [2022-07-13 02:09:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:51,991 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-07-13 02:09:51,991 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:09:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-07-13 02:09:51,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:09:51,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:51,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:51,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:09:51,992 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2107665076, now seen corresponding path program 1 times [2022-07-13 02:09:51,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:51,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901646879] [2022-07-13 02:09:51,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:51,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:52,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901646879] [2022-07-13 02:09:52,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901646879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:52,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:52,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:09:52,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559019600] [2022-07-13 02:09:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:52,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:09:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:09:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:09:52,013 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:52,033 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2022-07-13 02:09:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:09:52,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 02:09:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:52,036 INFO L225 Difference]: With dead ends: 55 [2022-07-13 02:09:52,036 INFO L226 Difference]: Without dead ends: 54 [2022-07-13 02:09:52,036 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 [2022-07-13 02:09:52,037 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:52,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-13 02:09:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-13 02:09:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.380952380952381) internal successors, (58), 49 states have internal predecessors, (58), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-07-13 02:09:52,041 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 12 [2022-07-13 02:09:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:52,041 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-07-13 02:09:52,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-07-13 02:09:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:09:52,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:52,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:52,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:09:52,042 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:52,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2097136937, now seen corresponding path program 1 times [2022-07-13 02:09:52,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:52,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832148460] [2022-07-13 02:09:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:52,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832148460] [2022-07-13 02:09:52,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832148460] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:52,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:52,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:09:52,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593963553] [2022-07-13 02:09:52,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:52,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:09:52,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:52,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:09:52,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:09:52,061 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:52,071 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2022-07-13 02:09:52,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:09:52,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 02:09:52,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:52,073 INFO L225 Difference]: With dead ends: 54 [2022-07-13 02:09:52,073 INFO L226 Difference]: Without dead ends: 53 [2022-07-13 02:09:52,074 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 [2022-07-13 02:09:52,075 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:52,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-13 02:09:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-07-13 02:09:52,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 48 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2022-07-13 02:09:52,082 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 12 [2022-07-13 02:09:52,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:52,082 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2022-07-13 02:09:52,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,082 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2022-07-13 02:09:52,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 02:09:52,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:52,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:52,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:09:52,083 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:52,084 INFO L85 PathProgramCache]: Analyzing trace with hash -586735519, now seen corresponding path program 1 times [2022-07-13 02:09:52,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:52,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689255411] [2022-07-13 02:09:52,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:52,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689255411] [2022-07-13 02:09:52,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689255411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:52,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:52,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:09:52,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816497775] [2022-07-13 02:09:52,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:52,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:09:52,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:52,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:09:52,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:52,133 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:52,187 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-07-13 02:09:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:09:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-13 02:09:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:52,188 INFO L225 Difference]: With dead ends: 65 [2022-07-13 02:09:52,189 INFO L226 Difference]: Without dead ends: 64 [2022-07-13 02:09:52,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:09:52,194 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:52,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 50 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-13 02:09:52,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 53. [2022-07-13 02:09:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 48 states have internal predecessors, (55), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-07-13 02:09:52,210 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 13 [2022-07-13 02:09:52,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:52,210 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-07-13 02:09:52,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-07-13 02:09:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:09:52,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:52,211 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:52,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:09:52,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:52,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash -367240775, now seen corresponding path program 1 times [2022-07-13 02:09:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:52,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972590064] [2022-07-13 02:09:52,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:52,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972590064] [2022-07-13 02:09:52,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972590064] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:52,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533812512] [2022-07-13 02:09:52,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:52,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:52,261 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) [2022-07-13 02:09:52,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:09:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:09:52,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533812512] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:52,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:52,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-13 02:09:52,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099583637] [2022-07-13 02:09:52,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:52,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:09:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:52,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:09:52,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:09:52,456 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:52,558 INFO L93 Difference]: Finished difference Result 164 states and 190 transitions. [2022-07-13 02:09:52,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 02:09:52,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:09:52,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:52,559 INFO L225 Difference]: With dead ends: 164 [2022-07-13 02:09:52,559 INFO L226 Difference]: Without dead ends: 162 [2022-07-13 02:09:52,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:09:52,560 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 147 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:52,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 159 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:09:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-13 02:09:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 122. [2022-07-13 02:09:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 110 states have internal predecessors, (133), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2022-07-13 02:09:52,569 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 17 [2022-07-13 02:09:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:52,569 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2022-07-13 02:09:52,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,569 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2022-07-13 02:09:52,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:09:52,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:52,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:52,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:09:52,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:52,786 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:52,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash 927905344, now seen corresponding path program 1 times [2022-07-13 02:09:52,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:52,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035726122] [2022-07-13 02:09:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:52,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035726122] [2022-07-13 02:09:52,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035726122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:52,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:52,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 02:09:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686510604] [2022-07-13 02:09:52,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:52,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:09:52,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:52,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:09:52,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:52,829 INFO L87 Difference]: Start difference. First operand 122 states and 146 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:52,865 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2022-07-13 02:09:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:09:52,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-13 02:09:52,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:52,866 INFO L225 Difference]: With dead ends: 182 [2022-07-13 02:09:52,866 INFO L226 Difference]: Without dead ends: 110 [2022-07-13 02:09:52,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:09:52,868 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:52,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 60 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-07-13 02:09:52,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-07-13 02:09:52,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 99 states have internal predecessors, (119), 12 states have call successors, (12), 10 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2022-07-13 02:09:52,889 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 19 [2022-07-13 02:09:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:52,889 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2022-07-13 02:09:52,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2022-07-13 02:09:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-13 02:09:52,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:52,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:52,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 02:09:52,896 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:52,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2146710882, now seen corresponding path program 1 times [2022-07-13 02:09:52,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:52,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349406339] [2022-07-13 02:09:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:52,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:52,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:52,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349406339] [2022-07-13 02:09:52,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349406339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:09:52,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:09:52,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:09:52,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407921685] [2022-07-13 02:09:52,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:09:52,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:09:52,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:52,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:09:52,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:09:52,949 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:52,974 INFO L93 Difference]: Finished difference Result 111 states and 131 transitions. [2022-07-13 02:09:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:09:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-13 02:09:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:52,975 INFO L225 Difference]: With dead ends: 111 [2022-07-13 02:09:52,975 INFO L226 Difference]: Without dead ends: 42 [2022-07-13 02:09:52,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:09:52,976 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:52,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 33 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-13 02:09:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-07-13 02:09:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2022-07-13 02:09:52,979 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 21 [2022-07-13 02:09:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:52,979 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2022-07-13 02:09:52,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2022-07-13 02:09:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-13 02:09:52,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:52,980 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:52,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 02:09:52,980 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:52,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1797520880, now seen corresponding path program 2 times [2022-07-13 02:09:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:52,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89645692] [2022-07-13 02:09:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:53,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:53,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89645692] [2022-07-13 02:09:53,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89645692] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:53,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100949820] [2022-07-13 02:09:53,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:09:53,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:53,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:53,078 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) [2022-07-13 02:09:53,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:09:53,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:09:53,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:53,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:09:53,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:53,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:53,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100949820] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:53,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:53,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-13 02:09:53,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565697023] [2022-07-13 02:09:53,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:53,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 02:09:53,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:53,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 02:09:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:09:53,356 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 14 states have internal predecessors, (70), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:53,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:53,489 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2022-07-13 02:09:53,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:09:53,490 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 14 states have internal predecessors, (70), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-07-13 02:09:53,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:53,491 INFO L225 Difference]: With dead ends: 95 [2022-07-13 02:09:53,491 INFO L226 Difference]: Without dead ends: 94 [2022-07-13 02:09:53,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 02:09:53,492 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 176 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:53,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 124 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:09:53,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-13 02:09:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2022-07-13 02:09:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 78 states have internal predecessors, (79), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2022-07-13 02:09:53,500 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 41 [2022-07-13 02:09:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:53,500 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2022-07-13 02:09:53,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 14 states have internal predecessors, (70), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2022-07-13 02:09:53,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-13 02:09:53,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:53,505 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:53,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:09:53,719 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,SelfDestructingSolverStorable11 [2022-07-13 02:09:53,720 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:53,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash 589293406, now seen corresponding path program 3 times [2022-07-13 02:09:53,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:53,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925991292] [2022-07-13 02:09:53,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:53,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:54,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:54,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925991292] [2022-07-13 02:09:54,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925991292] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:54,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257880532] [2022-07-13 02:09:54,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:09:54,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:54,044 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) [2022-07-13 02:09:54,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:09:54,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 02:09:54,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:54,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 02:09:54,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:54,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:54,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257880532] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:54,693 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:54,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-13 02:09:54,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435266735] [2022-07-13 02:09:54,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:54,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 02:09:54,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:54,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 02:09:54,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 02:09:54,696 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 48 states, 47 states have (on average 3.276595744680851) internal successors, (154), 26 states have internal predecessors, (154), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:55,169 INFO L93 Difference]: Finished difference Result 191 states and 202 transitions. [2022-07-13 02:09:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-13 02:09:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.276595744680851) internal successors, (154), 26 states have internal predecessors, (154), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-13 02:09:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:55,171 INFO L225 Difference]: With dead ends: 191 [2022-07-13 02:09:55,171 INFO L226 Difference]: Without dead ends: 190 [2022-07-13 02:09:55,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 153 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2022-07-13 02:09:55,175 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 595 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:55,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 234 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:09:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-07-13 02:09:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2022-07-13 02:09:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.0061728395061729) internal successors, (163), 162 states have internal predecessors, (163), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2022-07-13 02:09:55,196 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 89 [2022-07-13 02:09:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:55,196 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2022-07-13 02:09:55,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.276595744680851) internal successors, (154), 26 states have internal predecessors, (154), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2022-07-13 02:09:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-13 02:09:55,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:55,201 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:55,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:09:55,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:55,408 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:55,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash -697418182, now seen corresponding path program 4 times [2022-07-13 02:09:55,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:55,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147141816] [2022-07-13 02:09:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:55,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:09:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:56,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:09:56,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147141816] [2022-07-13 02:09:56,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147141816] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:09:56,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413659286] [2022-07-13 02:09:56,109 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:09:56,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:56,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:09:56,110 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) [2022-07-13 02:09:56,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:09:56,175 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 02:09:56,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:09:56,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-13 02:09:56,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:09:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:56,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:09:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:09:57,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413659286] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:09:57,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:09:57,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-13 02:09:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625696224] [2022-07-13 02:09:57,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:09:57,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-13 02:09:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:09:57,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-13 02:09:57,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 02:09:57,956 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 96 states, 95 states have (on average 3.389473684210526) internal successors, (322), 50 states have internal predecessors, (322), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:09:59,288 INFO L93 Difference]: Finished difference Result 383 states and 406 transitions. [2022-07-13 02:09:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-13 02:09:59,294 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.389473684210526) internal successors, (322), 50 states have internal predecessors, (322), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2022-07-13 02:09:59,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:09:59,295 INFO L225 Difference]: With dead ends: 383 [2022-07-13 02:09:59,295 INFO L226 Difference]: Without dead ends: 382 [2022-07-13 02:09:59,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 321 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2022-07-13 02:09:59,300 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1168 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:09:59,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 431 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:09:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-07-13 02:09:59,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 378. [2022-07-13 02:09:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 378 transitions. [2022-07-13 02:09:59,314 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 378 transitions. Word has length 185 [2022-07-13 02:09:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:09:59,314 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 378 transitions. [2022-07-13 02:09:59,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.389473684210526) internal successors, (322), 50 states have internal predecessors, (322), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:09:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 378 transitions. [2022-07-13 02:09:59,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-07-13 02:09:59,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:09:59,318 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2022-07-13 02:09:59,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:09:59,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:09:59,531 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:09:59,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:09:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash 2139421682, now seen corresponding path program 5 times [2022-07-13 02:09:59,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:09:59,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335936466] [2022-07-13 02:09:59,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:09:59,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:09:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:10:01,796 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:01,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:10:01,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335936466] [2022-07-13 02:10:01,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335936466] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:10:01,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701594042] [2022-07-13 02:10:01,797 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 02:10:01,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:10:01,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:10:01,798 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) [2022-07-13 02:10:01,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:10:01,950 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 02:10:01,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:10:01,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-13 02:10:01,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:10:02,351 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:02,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:10:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:07,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701594042] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:10:07,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:10:07,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-13 02:10:07,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737398573] [2022-07-13 02:10:07,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:10:07,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-13 02:10:07,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:10:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-13 02:10:07,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:10:07,782 INFO L87 Difference]: Start difference. First operand 378 states and 378 transitions. Second operand has 192 states, 191 states have (on average 3.445026178010471) internal successors, (658), 98 states have internal predecessors, (658), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:10:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:10:13,960 INFO L93 Difference]: Finished difference Result 767 states and 814 transitions. [2022-07-13 02:10:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-13 02:10:13,960 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 3.445026178010471) internal successors, (658), 98 states have internal predecessors, (658), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2022-07-13 02:10:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:10:13,963 INFO L225 Difference]: With dead ends: 767 [2022-07-13 02:10:13,963 INFO L226 Difference]: Without dead ends: 766 [2022-07-13 02:10:13,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 942 GetRequests, 657 SyntacticMatches, 1 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2022-07-13 02:10:13,969 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3626 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3626 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:10:13,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3626 Valid, 823 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:10:13,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2022-07-13 02:10:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 762. [2022-07-13 02:10:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 666 states have (on average 1.0015015015015014) internal successors, (667), 666 states have internal predecessors, (667), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:10:13,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2022-07-13 02:10:13,992 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 377 [2022-07-13 02:10:13,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:10:13,992 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2022-07-13 02:10:13,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 3.445026178010471) internal successors, (658), 98 states have internal predecessors, (658), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:10:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2022-07-13 02:10:14,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2022-07-13 02:10:14,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:10:14,003 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1] [2022-07-13 02:10:14,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:10:14,231 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,SelfDestructingSolverStorable14 [2022-07-13 02:10:14,231 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:10:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:10:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 77248354, now seen corresponding path program 6 times [2022-07-13 02:10:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:10:14,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277409764] [2022-07-13 02:10:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:10:14,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:10:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:10:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:22,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:10:22,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277409764] [2022-07-13 02:10:22,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277409764] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:10:22,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985872318] [2022-07-13 02:10:22,575 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 02:10:22,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:10:22,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:10:22,576 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) [2022-07-13 02:10:22,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:10:22,964 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 02:10:22,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:10:22,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-13 02:10:22,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:10:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:23,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:10:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:10:44,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985872318] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:10:44,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:10:44,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-13 02:10:44,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647707646] [2022-07-13 02:10:44,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:10:44,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-13 02:10:44,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:10:44,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-13 02:10:44,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-07-13 02:10:44,939 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand has 384 states, 383 states have (on average 3.4725848563968666) internal successors, (1330), 194 states have internal predecessors, (1330), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:11:24,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:11:24,429 INFO L93 Difference]: Finished difference Result 1535 states and 1630 transitions. [2022-07-13 02:11:24,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-07-13 02:11:24,430 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.4725848563968666) internal successors, (1330), 194 states have internal predecessors, (1330), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 761 [2022-07-13 02:11:24,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:11:24,435 INFO L225 Difference]: With dead ends: 1535 [2022-07-13 02:11:24,435 INFO L226 Difference]: Without dead ends: 1534 [2022-07-13 02:11:24,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1902 GetRequests, 1329 SyntacticMatches, 1 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 41.9s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2022-07-13 02:11:24,453 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7562 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7562 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 02:11:24,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7562 Valid, 1610 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 02:11:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2022-07-13 02:11:24,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1530. [2022-07-13 02:11:24,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1338 states have (on average 1.000747384155456) internal successors, (1339), 1338 states have internal predecessors, (1339), 191 states have call successors, (191), 191 states have call predecessors, (191), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:11:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 1530 transitions. [2022-07-13 02:11:24,495 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 1530 transitions. Word has length 761 [2022-07-13 02:11:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:11:24,496 INFO L495 AbstractCegarLoop]: Abstraction has 1530 states and 1530 transitions. [2022-07-13 02:11:24,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.4725848563968666) internal successors, (1330), 194 states have internal predecessors, (1330), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:11:24,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 1530 transitions. [2022-07-13 02:11:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2022-07-13 02:11:24,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:11:24,536 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1, 1, 1] [2022-07-13 02:11:24,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-13 02:11:24,743 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,SelfDestructingSolverStorable15 [2022-07-13 02:11:24,743 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-13 02:11:24,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:11:24,744 INFO L85 PathProgramCache]: Analyzing trace with hash 577187394, now seen corresponding path program 7 times [2022-07-13 02:11:24,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:11:24,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620273352] [2022-07-13 02:11:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:11:24,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:11:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:11:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:57,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:11:57,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620273352] [2022-07-13 02:11:57,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620273352] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:11:57,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472521615] [2022-07-13 02:11:57,227 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:11:57,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:11:57,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:11:57,228 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) [2022-07-13 02:11:57,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:11:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:11:57,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 384 conjunts are in the unsatisfiable core [2022-07-13 02:11:57,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:11:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:11:59,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:13:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:13:22,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472521615] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:13:22,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:13:22,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2022-07-13 02:13:22,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167899354] [2022-07-13 02:13:22,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:13:22,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2022-07-13 02:13:22,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:13:22,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2022-07-13 02:13:22,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2022-07-13 02:13:22,068 INFO L87 Difference]: Start difference. First operand 1530 states and 1530 transitions. Second operand has 768 states, 767 states have (on average 3.486310299869622) internal successors, (2674), 386 states have internal predecessors, (2674), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)