./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Addition03-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:40:01,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:40:01,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:40:01,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:40:01,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:40:01,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:40:01,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:40:01,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:40:01,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:40:01,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:40:01,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:40:01,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:40:01,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:40:01,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:40:01,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:40:01,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:40:01,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:40:01,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:40:01,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:40:01,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:40:01,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:40:01,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:40:01,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:40:01,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:40:01,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:40:01,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:40:01,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:40:01,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:40:01,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:40:01,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:40:01,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:40:01,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:40:01,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:40:01,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:40:01,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:40:01,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:40:01,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:40:01,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:40:01,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:40:01,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:40:01,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:40:01,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 22:40:01,806 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:40:01,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:40:01,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:40:01,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:40:01,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:40:01,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:40:01,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:40:01,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:40:01,809 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:40:01,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:40:01,810 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:40:01,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:40:01,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:40:01,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:40:01,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:40:01,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:40:01,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:40:01,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:40:01,811 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:40:01,811 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:40:01,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:40:01,812 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:40:01,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:40:01,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:40:01,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:40:01,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:40:01,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:40:01,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:40:01,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:40:01,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:40:01,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:40:01,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:40:01,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:40:01,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:40:01,814 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:40:01,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:40:01,814 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:40:01,815 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2023-02-15 22:40:02,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:40:02,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:40:02,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:40:02,089 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:40:02,089 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:40:02,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2023-02-15 22:40:03,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:40:03,505 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:40:03,507 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2023-02-15 22:40:03,513 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956fb98a4/ea19e244efec466eaa3865ac26fa01f7/FLAGeec35dfb6 [2023-02-15 22:40:03,530 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956fb98a4/ea19e244efec466eaa3865ac26fa01f7 [2023-02-15 22:40:03,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:40:03,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:40:03,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:40:03,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:40:03,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:40:03,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29658c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03, skipping insertion in model container [2023-02-15 22:40:03,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:40:03,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:40:03,716 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2023-02-15 22:40:03,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:40:03,726 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:40:03,743 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2023-02-15 22:40:03,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:40:03,760 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:40:03,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03 WrapperNode [2023-02-15 22:40:03,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:40:03,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:40:03,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:40:03,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:40:03,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,789 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-15 22:40:03,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:40:03,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:40:03,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:40:03,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:40:03,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,819 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:40:03,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:40:03,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:40:03,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:40:03,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (1/1) ... [2023-02-15 22:40:03,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:40:03,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:03,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 22:40:03,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 22:40:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:40:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:40:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:40:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 22:40:03,934 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2023-02-15 22:40:03,934 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2023-02-15 22:40:03,989 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:40:03,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:40:04,149 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:40:04,156 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:40:04,156 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 22:40:04,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:40:04 BoogieIcfgContainer [2023-02-15 22:40:04,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:40:04,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:40:04,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:40:04,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:40:04,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:40:03" (1/3) ... [2023-02-15 22:40:04,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d27b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:40:04, skipping insertion in model container [2023-02-15 22:40:04,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:40:03" (2/3) ... [2023-02-15 22:40:04,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d27b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:40:04, skipping insertion in model container [2023-02-15 22:40:04,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:40:04" (3/3) ... [2023-02-15 22:40:04,182 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2023-02-15 22:40:04,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:40:04,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 22:40:04,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:40:04,275 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70f1ef50, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:40:04,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 22:40:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 22:40:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 22:40:04,286 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:04,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:04,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2023-02-15 22:40:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:04,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99412318] [2023-02-15 22:40:04,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:04,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:04,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:04,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99412318] [2023-02-15 22:40:04,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99412318] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:04,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:04,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:40:04,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159129086] [2023-02-15 22:40:04,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:04,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:40:04,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:04,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:40:04,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:40:04,612 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:04,743 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2023-02-15 22:40:04,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:40:04,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 22:40:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:04,754 INFO L225 Difference]: With dead ends: 64 [2023-02-15 22:40:04,755 INFO L226 Difference]: Without dead ends: 45 [2023-02-15 22:40:04,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:40:04,761 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:04,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-15 22:40:04,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2023-02-15 22:40:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-02-15 22:40:04,791 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2023-02-15 22:40:04,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:04,791 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-02-15 22:40:04,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-02-15 22:40:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 22:40:04,792 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:04,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:04,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:40:04,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2023-02-15 22:40:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:04,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123704342] [2023-02-15 22:40:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:04,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:04,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123704342] [2023-02-15 22:40:04,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123704342] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:04,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:04,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:40:04,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921474196] [2023-02-15 22:40:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:04,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:40:04,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:04,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:40:04,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:40:04,849 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:04,918 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2023-02-15 22:40:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:40:04,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 22:40:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:04,919 INFO L225 Difference]: With dead ends: 67 [2023-02-15 22:40:04,920 INFO L226 Difference]: Without dead ends: 65 [2023-02-15 22:40:04,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:40:04,921 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:04,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:40:04,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-15 22:40:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2023-02-15 22:40:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2023-02-15 22:40:04,932 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2023-02-15 22:40:04,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:04,932 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2023-02-15 22:40:04,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,933 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2023-02-15 22:40:04,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:40:04,933 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:04,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:04,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:40:04,934 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:04,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2023-02-15 22:40:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:04,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627778268] [2023-02-15 22:40:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:04,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627778268] [2023-02-15 22:40:04,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627778268] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:04,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:04,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:40:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274264761] [2023-02-15 22:40:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:04,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:40:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:04,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:40:04,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:40:04,966 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:04,983 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2023-02-15 22:40:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:40:04,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 22:40:04,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:04,985 INFO L225 Difference]: With dead ends: 53 [2023-02-15 22:40:04,988 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 22:40:04,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:40:04,991 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:04,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 29 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:40:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 22:40:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-02-15 22:40:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.425) internal successors, (57), 47 states have internal predecessors, (57), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2023-02-15 22:40:05,002 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 9 [2023-02-15 22:40:05,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:05,003 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2023-02-15 22:40:05,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2023-02-15 22:40:05,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 22:40:05,003 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:05,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:05,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:40:05,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:05,004 INFO L85 PathProgramCache]: Analyzing trace with hash -615338830, now seen corresponding path program 1 times [2023-02-15 22:40:05,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:05,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545944745] [2023-02-15 22:40:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:05,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:05,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:05,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545944745] [2023-02-15 22:40:05,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545944745] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:05,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:05,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:40:05,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617221557] [2023-02-15 22:40:05,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:05,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:40:05,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:40:05,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:40:05,101 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:05,148 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2023-02-15 22:40:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:40:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-15 22:40:05,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:05,149 INFO L225 Difference]: With dead ends: 63 [2023-02-15 22:40:05,149 INFO L226 Difference]: Without dead ends: 62 [2023-02-15 22:40:05,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:40:05,151 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:05,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 48 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:40:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-02-15 22:40:05,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2023-02-15 22:40:05,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2023-02-15 22:40:05,160 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 10 [2023-02-15 22:40:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:05,160 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2023-02-15 22:40:05,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2023-02-15 22:40:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 22:40:05,161 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:05,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:05,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:40:05,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:05,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:05,163 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2023-02-15 22:40:05,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:05,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740717339] [2023-02-15 22:40:05,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:05,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:05,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:05,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740717339] [2023-02-15 22:40:05,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740717339] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:05,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:05,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:40:05,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090234430] [2023-02-15 22:40:05,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:05,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:40:05,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:05,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:40:05,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:40:05,242 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:05,308 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2023-02-15 22:40:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:40:05,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-15 22:40:05,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:05,310 INFO L225 Difference]: With dead ends: 64 [2023-02-15 22:40:05,310 INFO L226 Difference]: Without dead ends: 62 [2023-02-15 22:40:05,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:40:05,311 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:05,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 46 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:40:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-02-15 22:40:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2023-02-15 22:40:05,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2023-02-15 22:40:05,320 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 10 [2023-02-15 22:40:05,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:05,321 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2023-02-15 22:40:05,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2023-02-15 22:40:05,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 22:40:05,322 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:05,322 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:05,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 22:40:05,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:05,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:05,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1868280031, now seen corresponding path program 1 times [2023-02-15 22:40:05,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:05,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044682183] [2023-02-15 22:40:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:05,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:05,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:05,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044682183] [2023-02-15 22:40:05,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044682183] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:05,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824666115] [2023-02-15 22:40:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:05,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:05,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:05,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:05,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 22:40:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:05,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 22:40:05,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:05,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:05,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824666115] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:05,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:05,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 22:40:05,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215971996] [2023-02-15 22:40:05,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:05,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:40:05,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:05,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:40:05,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:40:05,646 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:05,827 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2023-02-15 22:40:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 22:40:05,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 22:40:05,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:05,829 INFO L225 Difference]: With dead ends: 133 [2023-02-15 22:40:05,829 INFO L226 Difference]: Without dead ends: 131 [2023-02-15 22:40:05,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2023-02-15 22:40:05,835 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 168 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:05,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 105 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:05,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-02-15 22:40:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 78. [2023-02-15 22:40:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 70 states have internal predecessors, (83), 8 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2023-02-15 22:40:05,847 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 16 [2023-02-15 22:40:05,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:05,847 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2023-02-15 22:40:05,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2023-02-15 22:40:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 22:40:05,848 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:05,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:05,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:06,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-15 22:40:06,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:06,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1957530120, now seen corresponding path program 1 times [2023-02-15 22:40:06,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:06,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030008881] [2023-02-15 22:40:06,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:06,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:06,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:06,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030008881] [2023-02-15 22:40:06,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030008881] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:06,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543261437] [2023-02-15 22:40:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:06,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:06,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:06,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:06,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 22:40:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:06,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 22:40:06,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:06,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:06,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:06,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543261437] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:06,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:06,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 22:40:06,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093238340] [2023-02-15 22:40:06,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:06,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:40:06,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:40:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:40:06,335 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:06,513 INFO L93 Difference]: Finished difference Result 232 states and 280 transitions. [2023-02-15 22:40:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 22:40:06,514 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 22:40:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:06,517 INFO L225 Difference]: With dead ends: 232 [2023-02-15 22:40:06,518 INFO L226 Difference]: Without dead ends: 230 [2023-02-15 22:40:06,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-02-15 22:40:06,520 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 206 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:06,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 138 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-02-15 22:40:06,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 187. [2023-02-15 22:40:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 161 states have (on average 1.2608695652173914) internal successors, (203), 167 states have internal predecessors, (203), 21 states have call successors, (21), 19 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 224 transitions. [2023-02-15 22:40:06,574 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 224 transitions. Word has length 16 [2023-02-15 22:40:06,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:06,574 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 224 transitions. [2023-02-15 22:40:06,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 224 transitions. [2023-02-15 22:40:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 22:40:06,576 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:06,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:06,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:06,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-15 22:40:06,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:06,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1299669, now seen corresponding path program 1 times [2023-02-15 22:40:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:06,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338849742] [2023-02-15 22:40:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:06,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:06,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:06,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338849742] [2023-02-15 22:40:06,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338849742] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:06,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:06,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:40:06,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096929313] [2023-02-15 22:40:06,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:06,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:40:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:06,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:40:06,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:40:06,859 INFO L87 Difference]: Start difference. First operand 187 states and 224 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:06,929 INFO L93 Difference]: Finished difference Result 259 states and 310 transitions. [2023-02-15 22:40:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:40:06,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 22:40:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:06,935 INFO L225 Difference]: With dead ends: 259 [2023-02-15 22:40:06,935 INFO L226 Difference]: Without dead ends: 132 [2023-02-15 22:40:06,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:40:06,943 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:06,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 46 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:40:06,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-02-15 22:40:06,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 97. [2023-02-15 22:40:06,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.1204819277108433) internal successors, (93), 85 states have internal predecessors, (93), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:06,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2023-02-15 22:40:06,963 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 18 [2023-02-15 22:40:06,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:06,963 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2023-02-15 22:40:06,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:06,964 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2023-02-15 22:40:06,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 22:40:06,965 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:06,965 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:40:06,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 22:40:06,968 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:06,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:06,969 INFO L85 PathProgramCache]: Analyzing trace with hash 550841017, now seen corresponding path program 1 times [2023-02-15 22:40:06,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:06,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076545662] [2023-02-15 22:40:06,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:06,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:07,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:07,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076545662] [2023-02-15 22:40:07,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076545662] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:40:07,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:40:07,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:40:07,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196862863] [2023-02-15 22:40:07,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:40:07,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:40:07,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:40:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:40:07,055 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:07,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:07,098 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2023-02-15 22:40:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:40:07,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-15 22:40:07,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:07,100 INFO L225 Difference]: With dead ends: 98 [2023-02-15 22:40:07,100 INFO L226 Difference]: Without dead ends: 97 [2023-02-15 22:40:07,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:40:07,103 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:07,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 51 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:40:07,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-15 22:40:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2023-02-15 22:40:07,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 54 states have internal predecessors, (58), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2023-02-15 22:40:07,112 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 19 [2023-02-15 22:40:07,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:07,112 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2023-02-15 22:40:07,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:07,112 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2023-02-15 22:40:07,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 22:40:07,113 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:07,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-15 22:40:07,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 22:40:07,114 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:07,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1477389264, now seen corresponding path program 1 times [2023-02-15 22:40:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:07,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111271782] [2023-02-15 22:40:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:07,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:07,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:07,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111271782] [2023-02-15 22:40:07,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111271782] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:07,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651309466] [2023-02-15 22:40:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:07,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:07,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:07,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:07,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 22:40:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:07,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 22:40:07,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:07,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:07,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651309466] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:07,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:07,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-15 22:40:07,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087759739] [2023-02-15 22:40:07,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:07,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 22:40:07,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:07,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 22:40:07,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-02-15 22:40:07,409 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:07,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:07,568 INFO L93 Difference]: Finished difference Result 209 states and 219 transitions. [2023-02-15 22:40:07,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 22:40:07,568 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-15 22:40:07,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:07,570 INFO L225 Difference]: With dead ends: 209 [2023-02-15 22:40:07,570 INFO L226 Difference]: Without dead ends: 208 [2023-02-15 22:40:07,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2023-02-15 22:40:07,571 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 211 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:07,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 145 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-02-15 22:40:07,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 98. [2023-02-15 22:40:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.1058823529411765) internal successors, (94), 86 states have internal predecessors, (94), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 105 transitions. [2023-02-15 22:40:07,583 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 105 transitions. Word has length 26 [2023-02-15 22:40:07,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:07,584 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 105 transitions. [2023-02-15 22:40:07,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:07,584 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 105 transitions. [2023-02-15 22:40:07,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-15 22:40:07,585 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:07,585 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 22:40:07,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:07,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:07,792 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:07,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:07,793 INFO L85 PathProgramCache]: Analyzing trace with hash -591358287, now seen corresponding path program 2 times [2023-02-15 22:40:07,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:07,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450230029] [2023-02-15 22:40:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:07,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:07,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:07,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450230029] [2023-02-15 22:40:07,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450230029] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:07,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282878378] [2023-02-15 22:40:07,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:40:07,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:07,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:07,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:07,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 22:40:08,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:40:08,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:08,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 22:40:08,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:08,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:08,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282878378] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:08,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:08,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 22:40:08,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710098912] [2023-02-15 22:40:08,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:08,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:40:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:40:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:40:08,255 INFO L87 Difference]: Start difference. First operand 98 states and 105 transitions. Second operand has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:08,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:08,454 INFO L93 Difference]: Finished difference Result 150 states and 162 transitions. [2023-02-15 22:40:08,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 22:40:08,454 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2023-02-15 22:40:08,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:08,456 INFO L225 Difference]: With dead ends: 150 [2023-02-15 22:40:08,456 INFO L226 Difference]: Without dead ends: 149 [2023-02-15 22:40:08,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 22:40:08,457 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 204 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:08,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 122 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-15 22:40:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 146. [2023-02-15 22:40:08,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.0708661417322836) internal successors, (136), 128 states have internal predecessors, (136), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 153 transitions. [2023-02-15 22:40:08,475 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 153 transitions. Word has length 40 [2023-02-15 22:40:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:08,475 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 153 transitions. [2023-02-15 22:40:08,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.2857142857142856) internal successors, (69), 14 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 153 transitions. [2023-02-15 22:40:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-15 22:40:08,482 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:08,483 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2023-02-15 22:40:08,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:08,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:08,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:08,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:08,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1145769136, now seen corresponding path program 2 times [2023-02-15 22:40:08,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:08,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967419896] [2023-02-15 22:40:08,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:08,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:08,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:08,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967419896] [2023-02-15 22:40:08,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967419896] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:08,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853003923] [2023-02-15 22:40:08,913 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:40:08,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:08,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:08,917 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:08,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 22:40:08,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:40:08,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:08,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-15 22:40:08,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:09,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:09,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853003923] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:09,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:09,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-15 22:40:09,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728411845] [2023-02-15 22:40:09,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:09,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 22:40:09,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:09,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 22:40:09,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2023-02-15 22:40:09,414 INFO L87 Difference]: Start difference. First operand 146 states and 153 transitions. Second operand has 32 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 18 states have internal predecessors, (109), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:09,852 INFO L93 Difference]: Finished difference Result 689 states and 711 transitions. [2023-02-15 22:40:09,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-15 22:40:09,853 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 18 states have internal predecessors, (109), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-02-15 22:40:09,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:09,856 INFO L225 Difference]: With dead ends: 689 [2023-02-15 22:40:09,856 INFO L226 Difference]: Without dead ends: 688 [2023-02-15 22:40:09,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 22:40:09,858 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 605 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:09,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 273 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:09,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-02-15 22:40:09,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 218. [2023-02-15 22:40:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 191 states have (on average 1.0890052356020943) internal successors, (208), 192 states have internal predecessors, (208), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2023-02-15 22:40:09,903 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 62 [2023-02-15 22:40:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:09,904 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2023-02-15 22:40:09,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 18 states have internal predecessors, (109), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:09,905 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2023-02-15 22:40:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-02-15 22:40:09,907 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:09,907 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-15 22:40:09,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:10,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 22:40:10,113 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2121543427, now seen corresponding path program 3 times [2023-02-15 22:40:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:10,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431047573] [2023-02-15 22:40:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:10,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:10,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:10,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431047573] [2023-02-15 22:40:10,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431047573] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:10,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079610783] [2023-02-15 22:40:10,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:40:10,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:10,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:10,529 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:10,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 22:40:10,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 22:40:10,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:10,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 22:40:10,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:10,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:11,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079610783] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:11,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:11,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 22:40:11,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855511607] [2023-02-15 22:40:11,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:11,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 22:40:11,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:11,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 22:40:11,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:40:11,241 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:11,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:11,796 INFO L93 Difference]: Finished difference Result 318 states and 344 transitions. [2023-02-15 22:40:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 22:40:11,797 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-02-15 22:40:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:11,799 INFO L225 Difference]: With dead ends: 318 [2023-02-15 22:40:11,799 INFO L226 Difference]: Without dead ends: 317 [2023-02-15 22:40:11,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2023-02-15 22:40:11,802 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 505 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:11,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 220 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:40:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-02-15 22:40:11,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 314. [2023-02-15 22:40:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 275 states have (on average 1.0618181818181818) internal successors, (292), 276 states have internal predecessors, (292), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 329 transitions. [2023-02-15 22:40:11,843 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 329 transitions. Word has length 88 [2023-02-15 22:40:11,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:11,844 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 329 transitions. [2023-02-15 22:40:11,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.4) internal successors, (153), 26 states have internal predecessors, (153), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:11,845 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 329 transitions. [2023-02-15 22:40:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-02-15 22:40:11,848 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:11,848 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2023-02-15 22:40:11,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:12,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:12,054 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:12,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1196900944, now seen corresponding path program 3 times [2023-02-15 22:40:12,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:12,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548682256] [2023-02-15 22:40:12,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:12,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:12,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:12,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548682256] [2023-02-15 22:40:12,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548682256] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:12,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953598066] [2023-02-15 22:40:12,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:40:12,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:12,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:12,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:12,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 22:40:12,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 22:40:12,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:12,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 22:40:12,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:13,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:14,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953598066] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:14,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:14,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2023-02-15 22:40:14,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549883054] [2023-02-15 22:40:14,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:14,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-15 22:40:14,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:14,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-15 22:40:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=3036, Unknown=0, NotChecked=0, Total=4032 [2023-02-15 22:40:14,089 INFO L87 Difference]: Start difference. First operand 314 states and 329 transitions. Second operand has 64 states, 61 states have (on average 3.8852459016393444) internal successors, (237), 34 states have internal predecessors, (237), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:15,419 INFO L93 Difference]: Finished difference Result 2417 states and 2463 transitions. [2023-02-15 22:40:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-02-15 22:40:15,420 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 61 states have (on average 3.8852459016393444) internal successors, (237), 34 states have internal predecessors, (237), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-02-15 22:40:15,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:15,428 INFO L225 Difference]: With dead ends: 2417 [2023-02-15 22:40:15,429 INFO L226 Difference]: Without dead ends: 2416 [2023-02-15 22:40:15,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2484, Invalid=6446, Unknown=0, NotChecked=0, Total=8930 [2023-02-15 22:40:15,432 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1417 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:15,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 543 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:40:15,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2023-02-15 22:40:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 458. [2023-02-15 22:40:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 403 states have (on average 1.0818858560794045) internal successors, (436), 404 states have internal predecessors, (436), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 489 transitions. [2023-02-15 22:40:15,487 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 489 transitions. Word has length 134 [2023-02-15 22:40:15,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:15,488 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 489 transitions. [2023-02-15 22:40:15,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 61 states have (on average 3.8852459016393444) internal successors, (237), 34 states have internal predecessors, (237), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:15,488 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 489 transitions. [2023-02-15 22:40:15,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-02-15 22:40:15,492 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:15,492 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-15 22:40:15,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:15,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:15,698 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:15,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:15,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1760385959, now seen corresponding path program 4 times [2023-02-15 22:40:15,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:15,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404227833] [2023-02-15 22:40:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:15,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:17,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:17,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404227833] [2023-02-15 22:40:17,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404227833] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:17,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073295364] [2023-02-15 22:40:17,095 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:40:17,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:17,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:17,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:17,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 22:40:17,185 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:40:17,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:17,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 22:40:17,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:17,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1958 backedges. 0 proven. 1958 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:19,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073295364] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:19,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:19,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 22:40:19,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949271180] [2023-02-15 22:40:19,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:19,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 22:40:19,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:19,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 22:40:19,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:40:19,311 INFO L87 Difference]: Start difference. First operand 458 states and 489 transitions. Second operand has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:21,012 INFO L93 Difference]: Finished difference Result 654 states and 708 transitions. [2023-02-15 22:40:21,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 22:40:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2023-02-15 22:40:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:21,020 INFO L225 Difference]: With dead ends: 654 [2023-02-15 22:40:21,020 INFO L226 Difference]: Without dead ends: 653 [2023-02-15 22:40:21,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2023-02-15 22:40:21,027 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1408 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:21,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 402 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:40:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-02-15 22:40:21,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 650. [2023-02-15 22:40:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 571 states have (on average 1.0577933450087567) internal successors, (604), 572 states have internal predecessors, (604), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:21,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 681 transitions. [2023-02-15 22:40:21,098 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 681 transitions. Word has length 184 [2023-02-15 22:40:21,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:21,099 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 681 transitions. [2023-02-15 22:40:21,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4516129032258065) internal successors, (321), 50 states have internal predecessors, (321), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:21,099 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 681 transitions. [2023-02-15 22:40:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-02-15 22:40:21,103 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:21,103 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1] [2023-02-15 22:40:21,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:21,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 22:40:21,309 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:21,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash 864624560, now seen corresponding path program 4 times [2023-02-15 22:40:21,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:21,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909201735] [2023-02-15 22:40:21,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:21,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4065 backedges. 0 proven. 4065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:23,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909201735] [2023-02-15 22:40:23,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909201735] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:23,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899707206] [2023-02-15 22:40:23,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:40:23,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:23,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:23,580 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:23,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 22:40:23,682 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:40:23,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:23,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-15 22:40:23,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:24,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4065 backedges. 0 proven. 4065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:24,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4065 backedges. 0 proven. 4065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:27,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899707206] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:27,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:27,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2023-02-15 22:40:27,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568692553] [2023-02-15 22:40:27,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:27,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-15 22:40:27,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:27,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-15 22:40:27,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4036, Invalid=12220, Unknown=0, NotChecked=0, Total=16256 [2023-02-15 22:40:27,084 INFO L87 Difference]: Start difference. First operand 650 states and 681 transitions. Second operand has 128 states, 125 states have (on average 3.944) internal successors, (493), 66 states have internal predecessors, (493), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:31,878 INFO L93 Difference]: Finished difference Result 8945 states and 9039 transitions. [2023-02-15 22:40:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-02-15 22:40:31,881 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 125 states have (on average 3.944) internal successors, (493), 66 states have internal predecessors, (493), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2023-02-15 22:40:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:31,913 INFO L225 Difference]: With dead ends: 8945 [2023-02-15 22:40:31,913 INFO L226 Difference]: Without dead ends: 8944 [2023-02-15 22:40:31,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7625 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=10084, Invalid=26206, Unknown=0, NotChecked=0, Total=36290 [2023-02-15 22:40:31,920 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4577 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:31,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 1060 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 22:40:31,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8944 states. [2023-02-15 22:40:32,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8944 to 938. [2023-02-15 22:40:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 827 states have (on average 1.0785973397823458) internal successors, (892), 828 states have internal predecessors, (892), 109 states have call successors, (109), 109 states have call predecessors, (109), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1001 transitions. [2023-02-15 22:40:32,100 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1001 transitions. Word has length 278 [2023-02-15 22:40:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:32,100 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1001 transitions. [2023-02-15 22:40:32,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 125 states have (on average 3.944) internal successors, (493), 66 states have internal predecessors, (493), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1001 transitions. [2023-02-15 22:40:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-02-15 22:40:32,107 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:32,107 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2023-02-15 22:40:32,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:32,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 22:40:32,314 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:32,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash 151495919, now seen corresponding path program 5 times [2023-02-15 22:40:32,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:32,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967616705] [2023-02-15 22:40:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:32,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:36,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:36,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:36,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967616705] [2023-02-15 22:40:36,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967616705] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:36,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785811888] [2023-02-15 22:40:36,830 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:40:36,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:36,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:36,831 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:36,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 22:40:37,016 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 22:40:37,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:37,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 22:40:37,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:40:37,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:37,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:40:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 8510 backedges. 0 proven. 8510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:43,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785811888] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:40:43,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:40:43,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 22:40:43,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18002301] [2023-02-15 22:40:43,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:40:43,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 22:40:43,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:40:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 22:40:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:40:43,888 INFO L87 Difference]: Start difference. First operand 938 states and 1001 transitions. Second operand has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:40:50,438 INFO L93 Difference]: Finished difference Result 1326 states and 1436 transitions. [2023-02-15 22:40:50,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 22:40:50,439 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2023-02-15 22:40:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:40:50,443 INFO L225 Difference]: With dead ends: 1326 [2023-02-15 22:40:50,443 INFO L226 Difference]: Without dead ends: 1325 [2023-02-15 22:40:50,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2023-02-15 22:40:50,449 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3543 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:40:50,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 794 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 22:40:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2023-02-15 22:40:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1322. [2023-02-15 22:40:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1163 states have (on average 1.0558899398108341) internal successors, (1228), 1164 states have internal predecessors, (1228), 157 states have call successors, (157), 157 states have call predecessors, (157), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:50,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1385 transitions. [2023-02-15 22:40:50,611 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1385 transitions. Word has length 376 [2023-02-15 22:40:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:40:50,612 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1385 transitions. [2023-02-15 22:40:50,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4761904761904763) internal successors, (657), 98 states have internal predecessors, (657), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:40:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1385 transitions. [2023-02-15 22:40:50,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2023-02-15 22:40:50,617 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:40:50,618 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1] [2023-02-15 22:40:50,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 22:40:50,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-15 22:40:50,824 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:40:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:40:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash 232645552, now seen corresponding path program 5 times [2023-02-15 22:40:50,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:40:50,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586387028] [2023-02-15 22:40:50,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:40:50,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:40:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:40:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 17329 backedges. 0 proven. 17329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:40:59,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:40:59,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586387028] [2023-02-15 22:40:59,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586387028] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:40:59,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572850726] [2023-02-15 22:40:59,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:40:59,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:40:59,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:40:59,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:40:59,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 22:40:59,475 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2023-02-15 22:40:59,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:40:59,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 128 conjunts are in the unsatisfiable core [2023-02-15 22:40:59,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:41:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 17329 backedges. 0 proven. 17329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:41:00,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:41:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 17329 backedges. 0 proven. 17329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:41:11,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572850726] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:41:11,369 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:41:11,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2023-02-15 22:41:11,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970947966] [2023-02-15 22:41:11,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:41:11,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-15 22:41:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:41:11,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-15 22:41:11,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16260, Invalid=49020, Unknown=0, NotChecked=0, Total=65280 [2023-02-15 22:41:11,383 INFO L87 Difference]: Start difference. First operand 1322 states and 1385 transitions. Second operand has 256 states, 253 states have (on average 3.972332015810277) internal successors, (1005), 130 states have internal predecessors, (1005), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:41:40,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:41:40,185 INFO L93 Difference]: Finished difference Result 34289 states and 34479 transitions. [2023-02-15 22:41:40,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2023-02-15 22:41:40,188 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 253 states have (on average 3.972332015810277) internal successors, (1005), 130 states have internal predecessors, (1005), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 566 [2023-02-15 22:41:40,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:41:40,273 INFO L225 Difference]: With dead ends: 34289 [2023-02-15 22:41:40,274 INFO L226 Difference]: Without dead ends: 34288 [2023-02-15 22:41:40,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1385 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 381 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31625 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=40644, Invalid=105662, Unknown=0, NotChecked=0, Total=146306 [2023-02-15 22:41:40,292 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10485 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10485 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:41:40,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10485 Valid, 2093 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 22:41:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34288 states. [2023-02-15 22:41:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34288 to 1898. [2023-02-15 22:41:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1675 states have (on average 1.0770149253731343) internal successors, (1804), 1676 states have internal predecessors, (1804), 221 states have call successors, (221), 221 states have call predecessors, (221), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:41:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2025 transitions. [2023-02-15 22:41:40,827 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2025 transitions. Word has length 566 [2023-02-15 22:41:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:41:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2025 transitions. [2023-02-15 22:41:40,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 253 states have (on average 3.972332015810277) internal successors, (1005), 130 states have internal predecessors, (1005), 126 states have call successors, (126), 126 states have call predecessors, (126), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:41:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2025 transitions. [2023-02-15 22:41:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2023-02-15 22:41:40,836 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:41:40,836 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2023-02-15 22:41:40,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-15 22:41:41,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 22:41:41,037 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:41:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:41:41,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1826355071, now seen corresponding path program 6 times [2023-02-15 22:41:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:41:41,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052316245] [2023-02-15 22:41:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:41:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:41:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:42:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:42:00,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:42:00,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052316245] [2023-02-15 22:42:00,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052316245] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:42:00,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253120730] [2023-02-15 22:42:00,132 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:42:00,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:42:00,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:42:00,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:42:00,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 22:42:00,629 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 22:42:00,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:42:00,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 22:42:00,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:42:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:42:01,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:42:25,788 INFO L134 CoverageAnalysis]: Checked inductivity of 35438 backedges. 0 proven. 35438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:42:25,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253120730] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:42:25,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:42:25,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-15 22:42:25,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370660812] [2023-02-15 22:42:25,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:42:25,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-15 22:42:25,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:42:25,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-15 22:42:25,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-02-15 22:42:25,810 INFO L87 Difference]: Start difference. First operand 1898 states and 2025 transitions. Second operand has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:43:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:43:07,019 INFO L93 Difference]: Finished difference Result 2670 states and 2892 transitions. [2023-02-15 22:43:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-15 22:43:07,026 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 760 [2023-02-15 22:43:07,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:43:07,032 INFO L225 Difference]: With dead ends: 2670 [2023-02-15 22:43:07,032 INFO L226 Difference]: Without dead ends: 2669 [2023-02-15 22:43:07,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1900 GetRequests, 1328 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2023-02-15 22:43:07,052 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6945 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6945 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-15 22:43:07,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6945 Valid, 1586 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-15 22:43:07,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2023-02-15 22:43:07,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2666. [2023-02-15 22:43:07,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2347 states have (on average 1.0549637835534724) internal successors, (2476), 2348 states have internal predecessors, (2476), 317 states have call successors, (317), 317 states have call predecessors, (317), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:43:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 2793 transitions. [2023-02-15 22:43:07,552 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 2793 transitions. Word has length 760 [2023-02-15 22:43:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:43:07,556 INFO L495 AbstractCegarLoop]: Abstraction has 2666 states and 2793 transitions. [2023-02-15 22:43:07,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 3.4881889763779528) internal successors, (1329), 194 states have internal predecessors, (1329), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:43:07,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 2793 transitions. [2023-02-15 22:43:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2023-02-15 22:43:07,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:43:07,571 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 126, 126, 126, 126, 1, 1, 1, 1] [2023-02-15 22:43:07,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 22:43:07,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:43:07,777 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:43:07,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:43:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash 886533040, now seen corresponding path program 6 times [2023-02-15 22:43:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:43:07,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643892552] [2023-02-15 22:43:07,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:43:07,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:43:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:43:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 71505 backedges. 0 proven. 71505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:43:46,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:43:46,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643892552] [2023-02-15 22:43:46,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643892552] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:43:46,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072078007] [2023-02-15 22:43:46,561 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:43:46,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:43:46,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:43:46,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:43:46,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 22:43:47,293 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2023-02-15 22:43:47,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:43:47,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 256 conjunts are in the unsatisfiable core [2023-02-15 22:43:47,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:43:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 71505 backedges. 0 proven. 71505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:43:48,534 INFO L328 TraceCheckSpWp]: Computing backward predicates...