./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a97cc7ecf3f325d6a4f94ad142da468f60264f8646a5f445527873ff4eb9457a --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:56:41,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:56:41,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:56:41,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:56:41,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:56:41,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:56:41,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:56:41,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:56:41,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:56:41,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:56:41,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:56:41,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:56:41,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:56:41,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:56:41,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:56:41,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:56:41,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:56:41,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:56:41,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:56:41,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:56:41,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:56:41,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:56:41,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:56:41,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:56:41,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:56:41,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:56:41,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:56:41,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:56:41,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:56:41,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:56:41,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:56:41,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:56:41,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:56:41,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:56:41,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:56:41,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:56:41,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:56:41,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:56:41,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:56:41,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:56:41,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:56:41,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 01:56:41,624 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:56:41,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:56:41,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:56:41,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:56:41,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:56:41,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:56:41,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:56:41,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:56:41,626 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:56:41,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:56:41,627 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:56:41,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:56:41,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 01:56:41,628 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:56:41,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 01:56:41,629 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:56:41,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 01:56:41,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:56:41,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:56:41,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:56:41,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:56:41,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:56:41,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:56:41,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 01:56:41,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 01:56:41,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 01:56:41,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:56:41,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 01:56:41,631 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:56:41,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:56:41,631 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:56:41,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97cc7ecf3f325d6a4f94ad142da468f60264f8646a5f445527873ff4eb9457a [2023-02-15 01:56:41,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:56:41,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:56:41,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:56:41,845 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:56:41,845 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:56:41,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2023-02-15 01:56:42,802 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:56:42,923 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:56:42,923 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2023-02-15 01:56:42,927 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eab1957d/e7079fefc88c4fe8b84afe2973191978/FLAGd87e00ed1 [2023-02-15 01:56:42,936 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eab1957d/e7079fefc88c4fe8b84afe2973191978 [2023-02-15 01:56:42,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:56:42,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:56:42,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:56:42,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:56:42,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:56:42,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:56:42" (1/1) ... [2023-02-15 01:56:42,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a28863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:42, skipping insertion in model container [2023-02-15 01:56:42,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:56:42" (1/1) ... [2023-02-15 01:56:42,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:56:42,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:56:43,037 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i[873,886] [2023-02-15 01:56:43,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:56:43,056 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 01:56:43,063 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i[873,886] [2023-02-15 01:56:43,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:56:43,073 INFO L208 MainTranslator]: Completed translation [2023-02-15 01:56:43,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43 WrapperNode [2023-02-15 01:56:43,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:56:43,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 01:56:43,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 01:56:43,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 01:56:43,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,092 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-02-15 01:56:43,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 01:56:43,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 01:56:43,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 01:56:43,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 01:56:43,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,103 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 01:56:43,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 01:56:43,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 01:56:43,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 01:56:43,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (1/1) ... [2023-02-15 01:56:43,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:56:43,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:43,130 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 01:56:43,140 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 01:56:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 01:56:43,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 01:56:43,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 01:56:43,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 01:56:43,198 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 01:56:43,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 01:56:43,318 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 01:56:43,327 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 01:56:43,328 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 01:56:43,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:56:43 BoogieIcfgContainer [2023-02-15 01:56:43,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 01:56:43,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 01:56:43,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 01:56:43,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 01:56:43,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:56:42" (1/3) ... [2023-02-15 01:56:43,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632b5126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:56:43, skipping insertion in model container [2023-02-15 01:56:43,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:56:43" (2/3) ... [2023-02-15 01:56:43,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632b5126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:56:43, skipping insertion in model container [2023-02-15 01:56:43,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:56:43" (3/3) ... [2023-02-15 01:56:43,351 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.i [2023-02-15 01:56:43,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 01:56:43,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 01:56:43,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 01:56:43,445 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;@429a3770, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 01:56:43,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 01:56:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 01:56:43,454 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:43,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 01:56:43,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:43,461 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-15 01:56:43,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:43,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134959704] [2023-02-15 01:56:43,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:43,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:43,623 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 01:56:43,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:43,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134959704] [2023-02-15 01:56:43,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134959704] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:56:43,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:56:43,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:56:43,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436364530] [2023-02-15 01:56:43,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:56:43,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:56:43,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:43,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:56:43,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:56:43,659 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:43,712 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-02-15 01:56:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:56:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 01:56:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:43,720 INFO L225 Difference]: With dead ends: 34 [2023-02-15 01:56:43,720 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 01:56:43,722 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 01:56:43,733 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:43,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 01:56:43,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-15 01:56:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 01:56:43,752 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2023-02-15 01:56:43,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:43,752 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 01:56:43,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 01:56:43,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 01:56:43,753 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:43,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 01:56:43,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 01:56:43,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:43,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:43,754 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-15 01:56:43,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:43,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083982738] [2023-02-15 01:56:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:43,781 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 01:56:43,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:43,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083982738] [2023-02-15 01:56:43,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083982738] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:56:43,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:56:43,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:56:43,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082211627] [2023-02-15 01:56:43,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:56:43,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:56:43,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:43,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:56:43,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:56:43,788 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:43,803 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-15 01:56:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:56:43,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 01:56:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:43,804 INFO L225 Difference]: With dead ends: 16 [2023-02-15 01:56:43,804 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 01:56:43,805 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 01:56:43,806 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:43,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 01:56:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 01:56:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 01:56:43,812 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2023-02-15 01:56:43,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:43,812 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 01:56:43,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 01:56:43,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 01:56:43,814 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:43,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:56:43,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 01:56:43,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:43,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-15 01:56:43,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:43,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116982273] [2023-02-15 01:56:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:43,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:43,864 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 01:56:43,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:43,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116982273] [2023-02-15 01:56:43,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116982273] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:56:43,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:56:43,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:56:43,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229045925] [2023-02-15 01:56:43,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:56:43,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:56:43,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:43,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:56:43,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:56:43,867 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:43,883 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-02-15 01:56:43,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:56:43,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 01:56:43,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:43,884 INFO L225 Difference]: With dead ends: 15 [2023-02-15 01:56:43,884 INFO L226 Difference]: Without dead ends: 14 [2023-02-15 01:56:43,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:56:43,885 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:43,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-15 01:56:43,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-15 01:56:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 01:56:43,888 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-02-15 01:56:43,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:43,888 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 01:56:43,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,889 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 01:56:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 01:56:43,889 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:43,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:56:43,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 01:56:43,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-15 01:56:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:43,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236789658] [2023-02-15 01:56:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:43,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:43,917 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 01:56:43,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:43,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236789658] [2023-02-15 01:56:43,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236789658] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:56:43,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:56:43,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:56:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933935057] [2023-02-15 01:56:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:56:43,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:56:43,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:56:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:56:43,919 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:43,937 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-15 01:56:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:56:43,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 01:56:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:43,938 INFO L225 Difference]: With dead ends: 17 [2023-02-15 01:56:43,938 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 01:56:43,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:56:43,939 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:43,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:43,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 01:56:43,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 01:56:43,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-15 01:56:43,942 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2023-02-15 01:56:43,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:43,942 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-15 01:56:43,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:43,943 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-15 01:56:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 01:56:43,943 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:43,943 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:56:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 01:56:43,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2023-02-15 01:56:43,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985487377] [2023-02-15 01:56:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:43,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:44,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:44,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985487377] [2023-02-15 01:56:44,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985487377] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:44,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885444852] [2023-02-15 01:56:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:44,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:44,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:44,016 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 01:56:44,017 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 01:56:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:44,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 01:56:44,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:44,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:56:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885444852] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:56:44,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:56:44,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-02-15 01:56:44,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687363981] [2023-02-15 01:56:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:56:44,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:56:44,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:44,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:56:44,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-15 01:56:44,118 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:44,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:44,164 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-15 01:56:44,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:56:44,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-15 01:56:44,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:44,165 INFO L225 Difference]: With dead ends: 16 [2023-02-15 01:56:44,165 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 01:56:44,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-15 01:56:44,166 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:44,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:44,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 01:56:44,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 01:56:44,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 01:56:44,169 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2023-02-15 01:56:44,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:44,169 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 01:56:44,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:44,169 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 01:56:44,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 01:56:44,182 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:44,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:56:44,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 01:56:44,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:44,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:44,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:44,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-15 01:56:44,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:44,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145230397] [2023-02-15 01:56:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:44,454 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 01:56:44,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:44,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145230397] [2023-02-15 01:56:44,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145230397] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:44,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668532955] [2023-02-15 01:56:44,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:44,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:44,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:44,460 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 01:56:44,462 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 01:56:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:44,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 01:56:44,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:44,547 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 01:56:44,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:44,610 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 01:56:44,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668532955] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:44,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:44,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-02-15 01:56:44,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855294895] [2023-02-15 01:56:44,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:44,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 01:56:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 01:56:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-02-15 01:56:44,615 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:44,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:44,671 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-02-15 01:56:44,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 01:56:44,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 01:56:44,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:44,672 INFO L225 Difference]: With dead ends: 25 [2023-02-15 01:56:44,672 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 01:56:44,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-02-15 01:56:44,674 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:44,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 01:56:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-02-15 01:56:44,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-15 01:56:44,683 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2023-02-15 01:56:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:44,683 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-15 01:56:44,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:44,684 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-15 01:56:44,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 01:56:44,684 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:44,684 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 01:56:44,698 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 01:56:44,889 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,SelfDestructingSolverStorable5 [2023-02-15 01:56:44,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-15 01:56:44,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:44,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99816393] [2023-02-15 01:56:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:44,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:44,959 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 01:56:44,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99816393] [2023-02-15 01:56:44,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99816393] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228635207] [2023-02-15 01:56:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:44,961 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 01:56:44,978 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 01:56:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:45,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 01:56:45,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:45,036 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 01:56:45,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:45,079 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 01:56:45,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228635207] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:45,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:45,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 01:56:45,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713653000] [2023-02-15 01:56:45,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:45,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 01:56:45,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:45,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 01:56:45,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 01:56:45,082 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:45,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:45,140 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-02-15 01:56:45,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 01:56:45,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-15 01:56:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:45,141 INFO L225 Difference]: With dead ends: 32 [2023-02-15 01:56:45,141 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 01:56:45,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:56:45,142 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:45,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:45,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 01:56:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-02-15 01:56:45,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:45,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2023-02-15 01:56:45,146 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 13 [2023-02-15 01:56:45,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:45,146 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2023-02-15 01:56:45,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:45,146 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2023-02-15 01:56:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 01:56:45,147 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:45,147 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1] [2023-02-15 01:56:45,155 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 01:56:45,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:45,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:45,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1032298143, now seen corresponding path program 2 times [2023-02-15 01:56:45,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:45,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153512673] [2023-02-15 01:56:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:45,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:45,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153512673] [2023-02-15 01:56:45,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153512673] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:45,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041269649] [2023-02-15 01:56:45,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:56:45,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:45,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:45,474 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 01:56:45,476 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 01:56:45,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:56:45,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:56:45,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 01:56:45,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:45,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:45,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041269649] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:45,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:45,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-15 01:56:45,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323115079] [2023-02-15 01:56:45,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:45,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-15 01:56:45,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:45,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-15 01:56:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2023-02-15 01:56:45,796 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 23 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:46,123 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2023-02-15 01:56:46,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 01:56:46,123 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-15 01:56:46,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:46,124 INFO L225 Difference]: With dead ends: 46 [2023-02-15 01:56:46,124 INFO L226 Difference]: Without dead ends: 45 [2023-02-15 01:56:46,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 01:56:46,125 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 33 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:46,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 23 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:56:46,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-15 01:56:46,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2023-02-15 01:56:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 42 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2023-02-15 01:56:46,129 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2023-02-15 01:56:46,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:46,129 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2023-02-15 01:56:46,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2023-02-15 01:56:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 01:56:46,130 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:46,130 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 01:56:46,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 01:56:46,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:46,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:46,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:46,334 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2023-02-15 01:56:46,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:46,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641204066] [2023-02-15 01:56:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:46,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:46,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:46,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641204066] [2023-02-15 01:56:46,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641204066] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:46,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298953163] [2023-02-15 01:56:46,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:56:46,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:46,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:46,433 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 01:56:46,435 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 01:56:46,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 01:56:46,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:56:46,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 01:56:46,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-15 01:56:46,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-15 01:56:46,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298953163] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:46,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:46,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2023-02-15 01:56:46,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869142848] [2023-02-15 01:56:46,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:46,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 01:56:46,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:46,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 01:56:46,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-02-15 01:56:46,587 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:46,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:46,743 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2023-02-15 01:56:46,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 01:56:46,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-15 01:56:46,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:46,745 INFO L225 Difference]: With dead ends: 43 [2023-02-15 01:56:46,745 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 01:56:46,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2023-02-15 01:56:46,747 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 32 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:46,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:56:46,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 01:56:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-02-15 01:56:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 41 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2023-02-15 01:56:46,755 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 28 [2023-02-15 01:56:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:46,755 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2023-02-15 01:56:46,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2023-02-15 01:56:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-15 01:56:46,757 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:46,757 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1] [2023-02-15 01:56:46,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 01:56:46,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:46,961 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1695301535, now seen corresponding path program 3 times [2023-02-15 01:56:46,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:46,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129085697] [2023-02-15 01:56:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:46,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:47,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:47,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129085697] [2023-02-15 01:56:47,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129085697] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:47,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614617556] [2023-02-15 01:56:47,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 01:56:47,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:47,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:47,265 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 01:56:47,268 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 01:56:47,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-15 01:56:47,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:56:47,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 01:56:47,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:47,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:48,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614617556] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:48,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:48,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2023-02-15 01:56:48,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988409158] [2023-02-15 01:56:48,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:48,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-02-15 01:56:48,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:48,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-02-15 01:56:48,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 01:56:48,189 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 47 states, 46 states have (on average 2.5869565217391304) internal successors, (119), 47 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:50,254 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2023-02-15 01:56:50,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 01:56:50,256 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5869565217391304) internal successors, (119), 47 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-02-15 01:56:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:50,256 INFO L225 Difference]: With dead ends: 83 [2023-02-15 01:56:50,256 INFO L226 Difference]: Without dead ends: 82 [2023-02-15 01:56:50,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1270 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1266, Invalid=6044, Unknown=0, NotChecked=0, Total=7310 [2023-02-15 01:56:50,258 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 102 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:50,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 27 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 01:56:50,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-15 01:56:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-02-15 01:56:50,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.0123456790123457) internal successors, (82), 81 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:50,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2023-02-15 01:56:50,264 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 41 [2023-02-15 01:56:50,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:50,264 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2023-02-15 01:56:50,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5869565217391304) internal successors, (119), 47 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2023-02-15 01:56:50,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-15 01:56:50,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:50,270 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1, 1] [2023-02-15 01:56:50,284 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 01:56:50,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:50,475 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:50,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:50,476 INFO L85 PathProgramCache]: Analyzing trace with hash 477757025, now seen corresponding path program 4 times [2023-02-15 01:56:50,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:50,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791345659] [2023-02-15 01:56:50,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:50,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:51,211 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:51,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:51,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791345659] [2023-02-15 01:56:51,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791345659] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:51,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116171063] [2023-02-15 01:56:51,212 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 01:56:51,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:51,225 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 01:56:51,248 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 01:56:51,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 01:56:51,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:56:51,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 01:56:51,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:52,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:53,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116171063] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:53,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:53,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-02-15 01:56:53,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569524080] [2023-02-15 01:56:53,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:53,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-02-15 01:56:53,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:53,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-02-15 01:56:53,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=910, Invalid=8020, Unknown=0, NotChecked=0, Total=8930 [2023-02-15 01:56:53,290 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 95 states, 94 states have (on average 2.5425531914893615) internal successors, (239), 95 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:56,881 INFO L93 Difference]: Finished difference Result 163 states and 178 transitions. [2023-02-15 01:56:56,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-15 01:56:56,881 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.5425531914893615) internal successors, (239), 95 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-02-15 01:56:56,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:56,882 INFO L225 Difference]: With dead ends: 163 [2023-02-15 01:56:56,882 INFO L226 Difference]: Without dead ends: 162 [2023-02-15 01:56:56,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4197 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3768, Invalid=20102, Unknown=0, NotChecked=0, Total=23870 [2023-02-15 01:56:56,886 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 168 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 3377 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 3542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 3377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:56,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 70 Invalid, 3542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 3377 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-15 01:56:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-02-15 01:56:56,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-02-15 01:56:56,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.0062111801242235) internal successors, (162), 161 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:56,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2023-02-15 01:56:56,898 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 81 [2023-02-15 01:56:56,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:56,900 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2023-02-15 01:56:56,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.5425531914893615) internal successors, (239), 95 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:56:56,901 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2023-02-15 01:56:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-15 01:56:56,908 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:56,908 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1, 1] [2023-02-15 01:56:56,916 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 01:56:57,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:57,112 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:56:57,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:57,113 INFO L85 PathProgramCache]: Analyzing trace with hash -758875551, now seen corresponding path program 5 times [2023-02-15 01:56:57,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:57,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309529141] [2023-02-15 01:56:57,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:56:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:59,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:56:59,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309529141] [2023-02-15 01:56:59,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309529141] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:56:59,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483192020] [2023-02-15 01:56:59,737 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 01:56:59,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:59,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:56:59,739 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 01:56:59,741 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 01:56:59,814 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-15 01:56:59,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:56:59,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 01:56:59,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:57:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:57:03,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:57:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:57:07,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483192020] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:57:07,903 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:57:07,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2023-02-15 01:57:07,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644469053] [2023-02-15 01:57:07,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:57:07,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-02-15 01:57:07,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:57:07,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-02-15 01:57:07,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3358, Invalid=32932, Unknown=0, NotChecked=0, Total=36290 [2023-02-15 01:57:07,912 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 191 states, 190 states have (on average 2.5210526315789474) internal successors, (479), 191 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:57:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:57:26,480 INFO L93 Difference]: Finished difference Result 323 states and 354 transitions. [2023-02-15 01:57:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-15 01:57:26,480 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.5210526315789474) internal successors, (479), 191 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-02-15 01:57:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:57:26,481 INFO L225 Difference]: With dead ends: 323 [2023-02-15 01:57:26,482 INFO L226 Difference]: Without dead ends: 322 [2023-02-15 01:57:26,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 313 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17853 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=14960, Invalid=83950, Unknown=0, NotChecked=0, Total=98910 [2023-02-15 01:57:26,487 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 13630 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 14305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 13630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-02-15 01:57:26,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 133 Invalid, 14305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 13630 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-02-15 01:57:26,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-02-15 01:57:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-02-15 01:57:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.0031152647975077) internal successors, (322), 321 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:57:26,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 322 transitions. [2023-02-15 01:57:26,506 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 322 transitions. Word has length 161 [2023-02-15 01:57:26,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:57:26,506 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 322 transitions. [2023-02-15 01:57:26,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.5210526315789474) internal successors, (479), 191 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:57:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 322 transitions. [2023-02-15 01:57:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-15 01:57:26,509 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:57:26,510 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 1, 1, 1, 1] [2023-02-15 01:57:26,515 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 01:57:26,714 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,SelfDestructingSolverStorable11 [2023-02-15 01:57:26,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:57:26,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:57:26,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1806601631, now seen corresponding path program 6 times [2023-02-15 01:57:26,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:57:26,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325696607] [2023-02-15 01:57:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:57:26,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:57:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:57:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:57:35,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:57:35,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325696607] [2023-02-15 01:57:35,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325696607] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:57:35,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496498094] [2023-02-15 01:57:35,453 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 01:57:35,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:57:35,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:57:35,454 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 01:57:35,456 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 01:57:35,602 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-15 01:57:35,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:57:35,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 01:57:35,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:57:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:57:47,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:58:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:58:02,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496498094] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:58:02,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:58:02,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2023-02-15 01:58:02,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858354554] [2023-02-15 01:58:02,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:58:02,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2023-02-15 01:58:02,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:58:02,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2023-02-15 01:58:02,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12862, Invalid=133444, Unknown=0, NotChecked=0, Total=146306 [2023-02-15 01:58:02,733 INFO L87 Difference]: Start difference. First operand 322 states and 322 transitions. Second operand has 383 states, 382 states have (on average 2.5104712041884816) internal successors, (959), 383 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:59:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:59:46,326 INFO L93 Difference]: Finished difference Result 643 states and 706 transitions. [2023-02-15 01:59:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-15 01:59:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 383 states, 382 states have (on average 2.5104712041884816) internal successors, (959), 383 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2023-02-15 01:59:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:59:46,330 INFO L225 Difference]: With dead ends: 643 [2023-02-15 01:59:46,330 INFO L226 Difference]: Without dead ends: 642 [2023-02-15 01:59:46,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1020 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 633 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73581 ImplicationChecksByTransitivity, 119.3s TimeCoverageRelationStatistics Valid=59616, Invalid=342974, Unknown=0, NotChecked=0, Total=402590 [2023-02-15 01:59:46,346 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2482 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 53978 mSolverCounterSat, 2479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 56457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2479 IncrementalHoareTripleChecker+Valid, 53978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-02-15 01:59:46,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 259 Invalid, 56457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2479 Valid, 53978 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-02-15 01:59:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-02-15 01:59:46,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2023-02-15 01:59:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.001560062402496) internal successors, (642), 641 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:59:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 642 transitions. [2023-02-15 01:59:46,379 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 642 transitions. Word has length 321 [2023-02-15 01:59:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:59:46,380 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 642 transitions. [2023-02-15 01:59:46,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 2.5104712041884816) internal successors, (959), 383 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 01:59:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 642 transitions. [2023-02-15 01:59:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2023-02-15 01:59:46,387 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:59:46,387 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 127, 127, 127, 1, 1, 1, 1] [2023-02-15 01:59:46,405 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 01:59:46,591 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,SelfDestructingSolverStorable12 [2023-02-15 01:59:46,592 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:59:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:59:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1421122975, now seen corresponding path program 7 times [2023-02-15 01:59:46,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:59:46,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924941730] [2023-02-15 01:59:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:59:46,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:59:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:00:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 0 proven. 40386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:00:30,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:00:30,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924941730] [2023-02-15 02:00:30,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924941730] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:00:30,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977190588] [2023-02-15 02:00:30,980 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 02:00:30,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:00:30,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:00:30,981 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 02:00:30,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 02:00:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:00:31,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 203 conjunts are in the unsatisfiable core [2023-02-15 02:00:31,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:01:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 38577 proven. 0 refuted. 0 times theorem prover too weak. 1809 trivial. 0 not checked. [2023-02-15 02:01:10,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 02:01:10,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977190588] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:01:10,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 02:01:10,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [256] total 458 [2023-02-15 02:01:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361271876] [2023-02-15 02:01:10,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:01:10,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2023-02-15 02:01:10,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:01:10,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2023-02-15 02:01:10,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10913, Invalid=198393, Unknown=0, NotChecked=0, Total=209306 [2023-02-15 02:01:10,798 INFO L87 Difference]: Start difference. First operand 642 states and 642 transitions. Second operand has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)