./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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/termination-numeric/Binomial.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:59:57,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:59:57,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:59:57,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:59:57,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:59:57,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:59:57,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:59:57,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:59:57,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:59:57,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:59:57,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:59:57,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:59:57,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:59:57,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:59:57,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:59:57,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:59:57,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:59:57,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:59:57,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:59:57,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:59:57,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:59:57,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:59:57,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:59:57,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:59:57,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:59:57,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:59:57,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:59:57,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:59:57,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:59:57,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:59:57,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:59:57,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:59:57,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:59:57,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:59:57,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:59:57,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:59:57,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:59:57,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:59:57,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:59:57,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:59:57,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:59:57,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 13:59:57,433 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:59:57,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:59:57,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:59:57,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:59:57,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:59:57,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:59:57,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:59:57,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:59:57,435 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:59:57,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:59:57,436 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:59:57,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:59:57,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:59:57,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:59:57,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:59:57,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:59:57,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:59:57,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:59:57,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:59:57,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:59:57,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:59:57,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:59:57,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:59:57,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:59:57,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:59:57,439 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:59:57,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:59:57,439 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:59:57,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2023-02-15 13:59:57,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:59:57,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:59:57,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:59:57,761 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:59:57,761 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:59:57,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Binomial.c [2023-02-15 13:59:58,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:59:58,887 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:59:58,888 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Binomial.c [2023-02-15 13:59:58,892 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e50df85/551b08c7a58146f7a7a00318c5cdb602/FLAGb009bc342 [2023-02-15 13:59:58,903 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38e50df85/551b08c7a58146f7a7a00318c5cdb602 [2023-02-15 13:59:58,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:59:58,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:59:58,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:59:58,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:59:58,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:59:58,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:59:58" (1/1) ... [2023-02-15 13:59:58,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c70b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:58, skipping insertion in model container [2023-02-15 13:59:58,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:59:58" (1/1) ... [2023-02-15 13:59:58,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:59:58,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:59:59,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:59:59,088 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:59:59,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:59:59,109 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:59:59,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59 WrapperNode [2023-02-15 13:59:59,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:59:59,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:59:59,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:59:59,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:59:59,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,130 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-02-15 13:59:59,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:59:59,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:59:59,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:59:59,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:59:59,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:59:59,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:59:59,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:59:59,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:59:59,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (1/1) ... [2023-02-15 13:59:59,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:59:59,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:59:59,210 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 13:59:59,227 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 13:59:59,236 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2023-02-15 13:59:59,236 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2023-02-15 13:59:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure binomialCoefficient [2023-02-15 13:59:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure binomialCoefficient [2023-02-15 13:59:59,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:59:59,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:59:59,277 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:59:59,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:59:59,442 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:59:59,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:59:59,447 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 13:59:59,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:59:59 BoogieIcfgContainer [2023-02-15 13:59:59,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:59:59,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:59:59,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:59:59,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:59:59,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:59:58" (1/3) ... [2023-02-15 13:59:59,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5f348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:59:59, skipping insertion in model container [2023-02-15 13:59:59,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:59:59" (2/3) ... [2023-02-15 13:59:59,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5f348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:59:59, skipping insertion in model container [2023-02-15 13:59:59,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:59:59" (3/3) ... [2023-02-15 13:59:59,454 INFO L112 eAbstractionObserver]: Analyzing ICFG Binomial.c [2023-02-15 13:59:59,464 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:59:59,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-02-15 13:59:59,491 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:59:59,495 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;@5f319a7b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:59:59,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-02-15 13:59:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 50 states have internal predecessors, (58), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 13:59:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 13:59:59,502 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:59:59,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:59:59,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 13:59:59,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:59:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1446708258, now seen corresponding path program 1 times [2023-02-15 13:59:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:59:59,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909694875] [2023-02-15 13:59:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:59:59,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:59:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:59:59,596 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 13:59:59,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:59:59,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909694875] [2023-02-15 13:59:59,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909694875] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:59:59,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:59:59,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:59:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529289174] [2023-02-15 13:59:59,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:59:59,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 13:59:59,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:59:59,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 13:59:59,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 13:59:59,631 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 50 states have internal predecessors, (58), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 13:59:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:59:59,649 INFO L93 Difference]: Finished difference Result 114 states and 134 transitions. [2023-02-15 13:59:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 13:59:59,650 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 13:59:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:59:59,655 INFO L225 Difference]: With dead ends: 114 [2023-02-15 13:59:59,655 INFO L226 Difference]: Without dead ends: 56 [2023-02-15 13:59:59,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 13:59:59,663 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:59:59,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:59:59,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-02-15 13:59:59,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-02-15 13:59:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.5) internal successors, (51), 47 states have internal predecessors, (51), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 13:59:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2023-02-15 13:59:59,687 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 8 [2023-02-15 13:59:59,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:59:59,688 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2023-02-15 13:59:59,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 13:59:59,688 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2023-02-15 13:59:59,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 13:59:59,688 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:59:59,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:59:59,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:59:59,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 13:59:59,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:59:59,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1446689999, now seen corresponding path program 1 times [2023-02-15 13:59:59,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:59:59,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92754020] [2023-02-15 13:59:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:59:59,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:59:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:59:59,734 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 13:59:59,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:59:59,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92754020] [2023-02-15 13:59:59,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92754020] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:59:59,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:59:59,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 13:59:59,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110753918] [2023-02-15 13:59:59,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:59:59,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:59:59,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:59:59,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:59:59,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:59:59,737 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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 13:59:59,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:59:59,772 INFO L93 Difference]: Finished difference Result 109 states and 124 transitions. [2023-02-15 13:59:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:59:59,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 13:59:59,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:59:59,774 INFO L225 Difference]: With dead ends: 109 [2023-02-15 13:59:59,774 INFO L226 Difference]: Without dead ends: 57 [2023-02-15 13:59:59,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 13:59:59,776 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 27 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:59:59,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 141 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:59:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-15 13:59:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-02-15 13:59:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 48 states have internal predecessors, (52), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 13:59:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2023-02-15 13:59:59,782 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 8 [2023-02-15 13:59:59,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:59:59,782 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2023-02-15 13:59:59,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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 13:59:59,783 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2023-02-15 13:59:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 13:59:59,783 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:59:59,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:59:59,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:59:59,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 13:59:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:59:59,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1304665248, now seen corresponding path program 1 times [2023-02-15 13:59:59,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:59:59,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604291146] [2023-02-15 13:59:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:59:59,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:59:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:59:59,813 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 13:59:59,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:59:59,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604291146] [2023-02-15 13:59:59,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604291146] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:59:59,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:59:59,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:59:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615537203] [2023-02-15 13:59:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:59:59,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:59:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:59:59,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:59:59,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:59:59,829 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:59:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:59:59,860 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2023-02-15 13:59:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:59:59,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-15 13:59:59,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:59:59,865 INFO L225 Difference]: With dead ends: 59 [2023-02-15 13:59:59,865 INFO L226 Difference]: Without dead ends: 58 [2023-02-15 13:59:59,866 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 13:59:59,871 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 9 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:59:59,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 111 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:59:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-02-15 13:59:59,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2023-02-15 13:59:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.457142857142857) internal successors, (51), 47 states have internal predecessors, (51), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-15 13:59:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2023-02-15 13:59:59,887 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 13 [2023-02-15 13:59:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:59:59,887 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2023-02-15 13:59:59,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:59:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2023-02-15 13:59:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 13:59:59,888 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:59:59,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:59:59,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:59:59,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 13:59:59,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:59:59,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1789917062, now seen corresponding path program 1 times [2023-02-15 13:59:59,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:59:59,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770192414] [2023-02-15 13:59:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:59:59,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:59:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,009 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 14:00:00,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:00,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770192414] [2023-02-15 14:00:00,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770192414] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:00,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:00,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:00:00,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454050124] [2023-02-15 14:00:00,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:00,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:00:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:00:00,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:00,012 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:00:00,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:00,157 INFO L93 Difference]: Finished difference Result 153 states and 180 transitions. [2023-02-15 14:00:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 14:00:00,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 14:00:00,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:00,159 INFO L225 Difference]: With dead ends: 153 [2023-02-15 14:00:00,159 INFO L226 Difference]: Without dead ends: 101 [2023-02-15 14:00:00,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-15 14:00:00,160 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 52 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:00,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 348 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:00,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-02-15 14:00:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 86. [2023-02-15 14:00:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 70 states have internal predecessors, (84), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-15 14:00:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 106 transitions. [2023-02-15 14:00:00,174 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 106 transitions. Word has length 14 [2023-02-15 14:00:00,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:00,186 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 106 transitions. [2023-02-15 14:00:00,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:00:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 106 transitions. [2023-02-15 14:00:00,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 14:00:00,188 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:00,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:00,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:00:00,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:00,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1946231172, now seen corresponding path program 1 times [2023-02-15 14:00:00,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:00,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113509454] [2023-02-15 14:00:00,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:00,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,232 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 14:00:00,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:00,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113509454] [2023-02-15 14:00:00,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113509454] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:00,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:00,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:00:00,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350154968] [2023-02-15 14:00:00,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:00,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:00:00,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:00,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:00:00,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:00:00,236 INFO L87 Difference]: Start difference. First operand 86 states and 106 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:00:00,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:00,294 INFO L93 Difference]: Finished difference Result 184 states and 223 transitions. [2023-02-15 14:00:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:00:00,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 14:00:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:00,296 INFO L225 Difference]: With dead ends: 184 [2023-02-15 14:00:00,296 INFO L226 Difference]: Without dead ends: 104 [2023-02-15 14:00:00,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:00:00,300 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 34 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:00,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 166 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-02-15 14:00:00,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 87. [2023-02-15 14:00:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 71 states have internal predecessors, (85), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-15 14:00:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2023-02-15 14:00:00,319 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 107 transitions. Word has length 14 [2023-02-15 14:00:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:00,319 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 107 transitions. [2023-02-15 14:00:00,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:00:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 107 transitions. [2023-02-15 14:00:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 14:00:00,320 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:00,320 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:00,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 14:00:00,321 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:00,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash -639849399, now seen corresponding path program 1 times [2023-02-15 14:00:00,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:00,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582196774] [2023-02-15 14:00:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 14:00:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,439 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 14:00:00,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:00,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582196774] [2023-02-15 14:00:00,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582196774] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:00,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:00,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:00:00,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953157361] [2023-02-15 14:00:00,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:00,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:00:00,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:00,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:00:00,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:00,441 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 14:00:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:00,546 INFO L93 Difference]: Finished difference Result 224 states and 292 transitions. [2023-02-15 14:00:00,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 14:00:00,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-02-15 14:00:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:00,547 INFO L225 Difference]: With dead ends: 224 [2023-02-15 14:00:00,547 INFO L226 Difference]: Without dead ends: 144 [2023-02-15 14:00:00,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-15 14:00:00,548 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:00,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 304 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:00,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-02-15 14:00:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 124. [2023-02-15 14:00:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 99 states have internal predecessors, (124), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-02-15 14:00:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2023-02-15 14:00:00,559 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 20 [2023-02-15 14:00:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:00,559 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2023-02-15 14:00:00,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 14:00:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2023-02-15 14:00:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 14:00:00,559 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:00,560 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:00,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 14:00:00,560 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash -715516421, now seen corresponding path program 1 times [2023-02-15 14:00:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:00,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706312673] [2023-02-15 14:00:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:00,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 14:00:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-15 14:00:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 14:00:00,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:00,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706312673] [2023-02-15 14:00:00,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706312673] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:00,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:00,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 14:00:00,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844472648] [2023-02-15 14:00:00,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:00,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:00:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:00,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:00:00,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:00:00,631 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 14:00:00,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:00,693 INFO L93 Difference]: Finished difference Result 162 states and 200 transitions. [2023-02-15 14:00:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 14:00:00,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-02-15 14:00:00,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:00,695 INFO L225 Difference]: With dead ends: 162 [2023-02-15 14:00:00,695 INFO L226 Difference]: Without dead ends: 161 [2023-02-15 14:00:00,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:00:00,696 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 62 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:00,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 248 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:00,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-15 14:00:00,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 139. [2023-02-15 14:00:00,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 96 states have (on average 1.4270833333333333) internal successors, (137), 110 states have internal predecessors, (137), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-15 14:00:00,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 181 transitions. [2023-02-15 14:00:00,705 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 181 transitions. Word has length 22 [2023-02-15 14:00:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:00,705 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 181 transitions. [2023-02-15 14:00:00,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 14:00:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 181 transitions. [2023-02-15 14:00:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-15 14:00:00,706 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:00,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:00,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 14:00:00,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash -706172517, now seen corresponding path program 1 times [2023-02-15 14:00:00,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:00,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270681169] [2023-02-15 14:00:00,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:00,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 14:00:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-15 14:00:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 14:00:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:00,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270681169] [2023-02-15 14:00:00,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270681169] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:00,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:00,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 14:00:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488770954] [2023-02-15 14:00:00,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:00,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:00:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:00,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:00:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:00:00,757 INFO L87 Difference]: Start difference. First operand 139 states and 181 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 14:00:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:00,832 INFO L93 Difference]: Finished difference Result 162 states and 197 transitions. [2023-02-15 14:00:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 14:00:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-02-15 14:00:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:00,834 INFO L225 Difference]: With dead ends: 162 [2023-02-15 14:00:00,834 INFO L226 Difference]: Without dead ends: 161 [2023-02-15 14:00:00,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:00:00,834 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 60 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:00,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 262 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:00,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-15 14:00:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 139. [2023-02-15 14:00:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 110 states have internal predecessors, (136), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-15 14:00:00,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 180 transitions. [2023-02-15 14:00:00,842 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 180 transitions. Word has length 23 [2023-02-15 14:00:00,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:00,842 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 180 transitions. [2023-02-15 14:00:00,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 14:00:00,843 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 180 transitions. [2023-02-15 14:00:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 14:00:00,843 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:00,843 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:00,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 14:00:00,843 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:00,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:00,844 INFO L85 PathProgramCache]: Analyzing trace with hash 230694540, now seen corresponding path program 1 times [2023-02-15 14:00:00,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:00,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133843250] [2023-02-15 14:00:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:00,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 14:00:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-15 14:00:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:00,907 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 14:00:00,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:00,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133843250] [2023-02-15 14:00:00,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133843250] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:00,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:00,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 14:00:00,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105088370] [2023-02-15 14:00:00,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:00,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 14:00:00,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:00,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 14:00:00,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:00:00,909 INFO L87 Difference]: Start difference. First operand 139 states and 180 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 14:00:01,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:01,030 INFO L93 Difference]: Finished difference Result 290 states and 374 transitions. [2023-02-15 14:00:01,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 14:00:01,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-02-15 14:00:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:01,033 INFO L225 Difference]: With dead ends: 290 [2023-02-15 14:00:01,033 INFO L226 Difference]: Without dead ends: 167 [2023-02-15 14:00:01,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 14:00:01,035 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 64 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:01,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 340 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-02-15 14:00:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 143. [2023-02-15 14:00:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.404040404040404) internal successors, (139), 113 states have internal predecessors, (139), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-15 14:00:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2023-02-15 14:00:01,051 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 28 [2023-02-15 14:00:01,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:01,053 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2023-02-15 14:00:01,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 14:00:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2023-02-15 14:00:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-15 14:00:01,054 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:01,054 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:01,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 14:00:01,055 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:01,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1641411648, now seen corresponding path program 1 times [2023-02-15 14:00:01,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:01,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544884175] [2023-02-15 14:00:01,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:01,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:01,062 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:01,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811475461] [2023-02-15 14:00:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:01,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:01,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:01,066 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 14:00:01,067 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 14:00:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:01,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:00:01,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 14:00:01,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:01,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:01,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544884175] [2023-02-15 14:00:01,166 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:01,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811475461] [2023-02-15 14:00:01,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811475461] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:01,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:01,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:00:01,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380923300] [2023-02-15 14:00:01,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:01,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:00:01,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:01,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:00:01,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:00:01,167 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 14:00:01,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:01,243 INFO L93 Difference]: Finished difference Result 201 states and 280 transitions. [2023-02-15 14:00:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:00:01,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-02-15 14:00:01,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:01,246 INFO L225 Difference]: With dead ends: 201 [2023-02-15 14:00:01,246 INFO L226 Difference]: Without dead ends: 200 [2023-02-15 14:00:01,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:00:01,247 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 15 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:01,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 202 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-02-15 14:00:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 165. [2023-02-15 14:00:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 128 states have internal predecessors, (160), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2023-02-15 14:00:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 224 transitions. [2023-02-15 14:00:01,259 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 224 transitions. Word has length 30 [2023-02-15 14:00:01,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:01,260 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 224 transitions. [2023-02-15 14:00:01,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 14:00:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 224 transitions. [2023-02-15 14:00:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 14:00:01,264 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:01,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:01,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:01,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 14:00:01,470 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:01,471 INFO L85 PathProgramCache]: Analyzing trace with hash 655846524, now seen corresponding path program 1 times [2023-02-15 14:00:01,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:01,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827386803] [2023-02-15 14:00:01,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:01,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:01,483 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:01,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199225854] [2023-02-15 14:00:01,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:01,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:01,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:01,507 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 14:00:01,508 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 14:00:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:01,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 14:00:01,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 14:00:01,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:01,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:01,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827386803] [2023-02-15 14:00:01,562 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:01,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199225854] [2023-02-15 14:00:01,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199225854] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:01,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:01,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:00:01,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770796107] [2023-02-15 14:00:01,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:01,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:00:01,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:01,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:00:01,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:00:01,563 INFO L87 Difference]: Start difference. First operand 165 states and 224 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 14:00:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:01,600 INFO L93 Difference]: Finished difference Result 201 states and 275 transitions. [2023-02-15 14:00:01,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:00:01,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-02-15 14:00:01,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:01,601 INFO L225 Difference]: With dead ends: 201 [2023-02-15 14:00:01,601 INFO L226 Difference]: Without dead ends: 200 [2023-02-15 14:00:01,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:00:01,602 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 18 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:01,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 156 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-02-15 14:00:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 169. [2023-02-15 14:00:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 121 states have (on average 1.3471074380165289) internal successors, (163), 132 states have internal predecessors, (163), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2023-02-15 14:00:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 227 transitions. [2023-02-15 14:00:01,609 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 227 transitions. Word has length 31 [2023-02-15 14:00:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:01,609 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 227 transitions. [2023-02-15 14:00:01,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 14:00:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 227 transitions. [2023-02-15 14:00:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 14:00:01,609 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:01,609 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:01,625 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 14:00:01,814 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,SelfDestructingSolverStorable10 [2023-02-15 14:00:01,814 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1143594174, now seen corresponding path program 1 times [2023-02-15 14:00:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:01,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013779482] [2023-02-15 14:00:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:01,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:01,819 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:01,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718879742] [2023-02-15 14:00:01,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:01,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:01,833 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 14:00:01,859 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 14:00:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:01,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:00:01,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:01,955 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:01,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:01,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:01,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013779482] [2023-02-15 14:00:01,955 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:01,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718879742] [2023-02-15 14:00:01,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718879742] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:01,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:01,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:00:01,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505656957] [2023-02-15 14:00:01,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:01,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:00:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:00:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:01,957 INFO L87 Difference]: Start difference. First operand 169 states and 227 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 14:00:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:02,020 INFO L93 Difference]: Finished difference Result 256 states and 354 transitions. [2023-02-15 14:00:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 14:00:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-02-15 14:00:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:02,021 INFO L225 Difference]: With dead ends: 256 [2023-02-15 14:00:02,021 INFO L226 Difference]: Without dead ends: 255 [2023-02-15 14:00:02,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:02,022 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 25 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:02,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 265 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:02,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-02-15 14:00:02,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 200. [2023-02-15 14:00:02,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 154 states have internal predecessors, (191), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2023-02-15 14:00:02,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 272 transitions. [2023-02-15 14:00:02,030 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 272 transitions. Word has length 32 [2023-02-15 14:00:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:02,030 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 272 transitions. [2023-02-15 14:00:02,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 14:00:02,030 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 272 transitions. [2023-02-15 14:00:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-15 14:00:02,031 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:02,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:02,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 14:00:02,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:02,235 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:02,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1091680962, now seen corresponding path program 1 times [2023-02-15 14:00:02,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:02,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401033205] [2023-02-15 14:00:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:02,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:02,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:02,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398820011] [2023-02-15 14:00:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:02,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:02,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:02,242 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 14:00:02,244 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 14:00:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:02,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 14:00:02,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:02,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 14:00:02,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:03,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:03,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401033205] [2023-02-15 14:00:03,100 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:03,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398820011] [2023-02-15 14:00:03,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398820011] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:00:03,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:00:03,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-02-15 14:00:03,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696056124] [2023-02-15 14:00:03,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:03,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:00:03,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:03,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:00:03,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-02-15 14:00:03,102 INFO L87 Difference]: Start difference. First operand 200 states and 272 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 14:00:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:03,177 INFO L93 Difference]: Finished difference Result 255 states and 349 transitions. [2023-02-15 14:00:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:00:03,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2023-02-15 14:00:03,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:03,179 INFO L225 Difference]: With dead ends: 255 [2023-02-15 14:00:03,179 INFO L226 Difference]: Without dead ends: 254 [2023-02-15 14:00:03,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-02-15 14:00:03,180 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 32 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:03,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 216 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:03,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-15 14:00:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 204. [2023-02-15 14:00:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.2933333333333332) internal successors, (194), 158 states have internal predecessors, (194), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2023-02-15 14:00:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 275 transitions. [2023-02-15 14:00:03,188 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 275 transitions. Word has length 33 [2023-02-15 14:00:03,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:03,188 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 275 transitions. [2023-02-15 14:00:03,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 14:00:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 275 transitions. [2023-02-15 14:00:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 14:00:03,189 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:03,189 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:03,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:03,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:03,394 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1848456444, now seen corresponding path program 1 times [2023-02-15 14:00:03,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:03,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423729620] [2023-02-15 14:00:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:03,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:03,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:03,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940802061] [2023-02-15 14:00:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:03,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:03,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:03,401 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 14:00:03,403 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 14:00:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:03,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:00:03,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:03,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:03,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:03,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423729620] [2023-02-15 14:00:03,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:03,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940802061] [2023-02-15 14:00:03,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940802061] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:03,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:03,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:00:03,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785965659] [2023-02-15 14:00:03,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:03,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:00:03,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:03,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:00:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:00:03,449 INFO L87 Difference]: Start difference. First operand 204 states and 275 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:03,468 INFO L93 Difference]: Finished difference Result 204 states and 275 transitions. [2023-02-15 14:00:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:00:03,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2023-02-15 14:00:03,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:03,469 INFO L225 Difference]: With dead ends: 204 [2023-02-15 14:00:03,469 INFO L226 Difference]: Without dead ends: 203 [2023-02-15 14:00:03,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 14:00:03,469 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 13 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:03,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 145 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-02-15 14:00:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2023-02-15 14:00:03,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 150 states have (on average 1.28) internal successors, (192), 157 states have internal predecessors, (192), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2023-02-15 14:00:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 273 transitions. [2023-02-15 14:00:03,502 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 273 transitions. Word has length 38 [2023-02-15 14:00:03,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:03,502 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 273 transitions. [2023-02-15 14:00:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:03,502 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 273 transitions. [2023-02-15 14:00:03,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 14:00:03,504 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:03,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:03,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:03,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-15 14:00:03,710 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:03,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:03,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1467574807, now seen corresponding path program 1 times [2023-02-15 14:00:03,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:03,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407739927] [2023-02-15 14:00:03,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:03,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:03,716 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:03,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832469219] [2023-02-15 14:00:03,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:03,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:03,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:03,725 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 14:00:03,728 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 14:00:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:03,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:00:03,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:03,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:03,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:03,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407739927] [2023-02-15 14:00:03,774 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:03,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832469219] [2023-02-15 14:00:03,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832469219] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:03,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:03,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:00:03,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402174853] [2023-02-15 14:00:03,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:03,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:00:03,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:00:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:00:03,775 INFO L87 Difference]: Start difference. First operand 203 states and 273 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:03,799 INFO L93 Difference]: Finished difference Result 214 states and 286 transitions. [2023-02-15 14:00:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:00:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-02-15 14:00:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:03,800 INFO L225 Difference]: With dead ends: 214 [2023-02-15 14:00:03,800 INFO L226 Difference]: Without dead ends: 213 [2023-02-15 14:00:03,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 14:00:03,801 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 4 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:03,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 165 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:03,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-02-15 14:00:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-02-15 14:00:03,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 159 states have (on average 1.2641509433962264) internal successors, (201), 164 states have internal predecessors, (201), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2023-02-15 14:00:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 284 transitions. [2023-02-15 14:00:03,808 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 284 transitions. Word has length 39 [2023-02-15 14:00:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:03,808 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 284 transitions. [2023-02-15 14:00:03,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 284 transitions. [2023-02-15 14:00:03,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-15 14:00:03,809 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:03,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:03,827 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 14:00:04,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 14:00:04,016 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:04,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2048877323, now seen corresponding path program 1 times [2023-02-15 14:00:04,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:04,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258348794] [2023-02-15 14:00:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:04,021 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:04,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926225927] [2023-02-15 14:00:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:04,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:04,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:04,022 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 14:00:04,024 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 14:00:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:04,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:00:04,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-15 14:00:04,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:04,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258348794] [2023-02-15 14:00:04,082 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926225927] [2023-02-15 14:00:04,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926225927] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:04,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:04,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:00:04,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120077075] [2023-02-15 14:00:04,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:04,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:00:04,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:04,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:00:04,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:00:04,083 INFO L87 Difference]: Start difference. First operand 213 states and 284 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:04,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:04,100 INFO L93 Difference]: Finished difference Result 213 states and 284 transitions. [2023-02-15 14:00:04,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:00:04,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-02-15 14:00:04,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:04,101 INFO L225 Difference]: With dead ends: 213 [2023-02-15 14:00:04,101 INFO L226 Difference]: Without dead ends: 212 [2023-02-15 14:00:04,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 14:00:04,102 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 8 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:04,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 142 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-02-15 14:00:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-02-15 14:00:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 159 states have (on average 1.2578616352201257) internal successors, (200), 163 states have internal predecessors, (200), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2023-02-15 14:00:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2023-02-15 14:00:04,109 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 42 [2023-02-15 14:00:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:04,109 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2023-02-15 14:00:04,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:04,109 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2023-02-15 14:00:04,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-02-15 14:00:04,109 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:04,110 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:04,127 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 14:00:04,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:04,315 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:04,315 INFO L85 PathProgramCache]: Analyzing trace with hash 909312544, now seen corresponding path program 1 times [2023-02-15 14:00:04,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:04,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506528653] [2023-02-15 14:00:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:04,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:04,321 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:04,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528013980] [2023-02-15 14:00:04,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:04,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:04,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:04,337 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 14:00:04,338 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 14:00:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:04,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:00:04,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-15 14:00:04,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:04,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:04,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506528653] [2023-02-15 14:00:04,394 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:04,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528013980] [2023-02-15 14:00:04,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528013980] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:04,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:04,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:00:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226620453] [2023-02-15 14:00:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:04,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:00:04,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:00:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:00:04,395 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:04,414 INFO L93 Difference]: Finished difference Result 217 states and 287 transitions. [2023-02-15 14:00:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:00:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-02-15 14:00:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:04,415 INFO L225 Difference]: With dead ends: 217 [2023-02-15 14:00:04,415 INFO L226 Difference]: Without dead ends: 216 [2023-02-15 14:00:04,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 14:00:04,416 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 5 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:04,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 159 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:04,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-02-15 14:00:04,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2023-02-15 14:00:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 162 states have (on average 1.2530864197530864) internal successors, (203), 166 states have internal predecessors, (203), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2023-02-15 14:00:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 286 transitions. [2023-02-15 14:00:04,422 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 286 transitions. Word has length 43 [2023-02-15 14:00:04,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:04,422 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 286 transitions. [2023-02-15 14:00:04,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 14:00:04,422 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 286 transitions. [2023-02-15 14:00:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-15 14:00:04,422 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:04,423 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:04,429 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 14:00:04,627 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,SelfDestructingSolverStorable16 [2023-02-15 14:00:04,627 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash -504640214, now seen corresponding path program 1 times [2023-02-15 14:00:04,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:04,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493734847] [2023-02-15 14:00:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:04,632 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:04,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287510216] [2023-02-15 14:00:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:04,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:04,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:04,633 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 14:00:04,635 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 14:00:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:04,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:00:04,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:04,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:04,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:04,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493734847] [2023-02-15 14:00:04,823 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:04,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287510216] [2023-02-15 14:00:04,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287510216] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:00:04,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:00:04,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-02-15 14:00:04,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334387514] [2023-02-15 14:00:04,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:04,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 14:00:04,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 14:00:04,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:00:04,824 INFO L87 Difference]: Start difference. First operand 215 states and 286 transitions. Second operand has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:05,149 INFO L93 Difference]: Finished difference Result 315 states and 408 transitions. [2023-02-15 14:00:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 14:00:05,150 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2023-02-15 14:00:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:05,151 INFO L225 Difference]: With dead ends: 315 [2023-02-15 14:00:05,151 INFO L226 Difference]: Without dead ends: 314 [2023-02-15 14:00:05,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:00:05,152 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 151 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:05,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 566 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:00:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-02-15 14:00:05,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 278. [2023-02-15 14:00:05,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 210 states have (on average 1.2904761904761906) internal successors, (271), 216 states have internal predecessors, (271), 42 states have call successors, (42), 12 states have call predecessors, (42), 15 states have return successors, (69), 49 states have call predecessors, (69), 42 states have call successors, (69) [2023-02-15 14:00:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 382 transitions. [2023-02-15 14:00:05,176 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 382 transitions. Word has length 48 [2023-02-15 14:00:05,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:05,176 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 382 transitions. [2023-02-15 14:00:05,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 382 transitions. [2023-02-15 14:00:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-15 14:00:05,177 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:05,177 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:05,195 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 14:00:05,381 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,SelfDestructingSolverStorable17 [2023-02-15 14:00:05,382 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash -953842833, now seen corresponding path program 1 times [2023-02-15 14:00:05,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:05,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001385255] [2023-02-15 14:00:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:05,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:05,389 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:05,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135187637] [2023-02-15 14:00:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:05,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:05,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:05,406 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 14:00:05,411 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 14:00:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:05,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:00:05,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-02-15 14:00:05,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:05,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:05,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001385255] [2023-02-15 14:00:05,491 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:05,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135187637] [2023-02-15 14:00:05,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135187637] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:05,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:05,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:00:05,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468071333] [2023-02-15 14:00:05,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:05,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:00:05,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:00:05,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:00:05,493 INFO L87 Difference]: Start difference. First operand 278 states and 382 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:05,540 INFO L93 Difference]: Finished difference Result 497 states and 686 transitions. [2023-02-15 14:00:05,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 14:00:05,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2023-02-15 14:00:05,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:05,542 INFO L225 Difference]: With dead ends: 497 [2023-02-15 14:00:05,542 INFO L226 Difference]: Without dead ends: 253 [2023-02-15 14:00:05,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:00:05,543 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 17 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:05,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 154 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:05,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-02-15 14:00:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2023-02-15 14:00:05,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 190 states have (on average 1.2789473684210526) internal successors, (243), 197 states have internal predecessors, (243), 37 states have call successors, (37), 11 states have call predecessors, (37), 14 states have return successors, (61), 43 states have call predecessors, (61), 37 states have call successors, (61) [2023-02-15 14:00:05,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 341 transitions. [2023-02-15 14:00:05,553 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 341 transitions. Word has length 54 [2023-02-15 14:00:05,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:05,553 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 341 transitions. [2023-02-15 14:00:05,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 341 transitions. [2023-02-15 14:00:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-15 14:00:05,554 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:05,554 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:05,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:05,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:05,758 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:05,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:05,759 INFO L85 PathProgramCache]: Analyzing trace with hash 732083949, now seen corresponding path program 2 times [2023-02-15 14:00:05,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:05,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587738186] [2023-02-15 14:00:05,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:05,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:05,763 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:05,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062474494] [2023-02-15 14:00:05,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:00:05,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:05,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:05,765 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:05,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 14:00:05,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:00:05,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:00:05,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 14:00:05,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:05,836 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-15 14:00:05,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:05,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:05,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587738186] [2023-02-15 14:00:05,837 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:05,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062474494] [2023-02-15 14:00:05,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062474494] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:05,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:05,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 14:00:05,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635290687] [2023-02-15 14:00:05,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:05,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 14:00:05,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:05,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 14:00:05,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:00:05,839 INFO L87 Difference]: Start difference. First operand 252 states and 341 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:05,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:05,956 INFO L93 Difference]: Finished difference Result 517 states and 717 transitions. [2023-02-15 14:00:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 14:00:05,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2023-02-15 14:00:05,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:05,959 INFO L225 Difference]: With dead ends: 517 [2023-02-15 14:00:05,959 INFO L226 Difference]: Without dead ends: 303 [2023-02-15 14:00:05,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 14:00:05,960 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 55 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:05,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 340 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-02-15 14:00:05,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 296. [2023-02-15 14:00:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 224 states have (on average 1.3080357142857142) internal successors, (293), 229 states have internal predecessors, (293), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2023-02-15 14:00:05,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 413 transitions. [2023-02-15 14:00:05,970 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 413 transitions. Word has length 54 [2023-02-15 14:00:05,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:05,971 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 413 transitions. [2023-02-15 14:00:05,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:05,971 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 413 transitions. [2023-02-15 14:00:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-02-15 14:00:05,971 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:05,972 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:05,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-15 14:00:06,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:06,194 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:06,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:06,194 INFO L85 PathProgramCache]: Analyzing trace with hash -36930177, now seen corresponding path program 1 times [2023-02-15 14:00:06,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:06,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563042913] [2023-02-15 14:00:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:06,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:06,199 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:06,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546504871] [2023-02-15 14:00:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:06,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:06,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:06,200 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:06,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 14:00:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:06,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:00:06,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:06,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 14:00:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:06,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563042913] [2023-02-15 14:00:06,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:06,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546504871] [2023-02-15 14:00:06,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546504871] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:00:06,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:00:06,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-02-15 14:00:06,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441122221] [2023-02-15 14:00:06,414 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:06,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 14:00:06,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:06,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 14:00:06,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-02-15 14:00:06,415 INFO L87 Difference]: Start difference. First operand 296 states and 413 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:06,618 INFO L93 Difference]: Finished difference Result 533 states and 738 transitions. [2023-02-15 14:00:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 14:00:06,620 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 53 [2023-02-15 14:00:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:06,622 INFO L225 Difference]: With dead ends: 533 [2023-02-15 14:00:06,622 INFO L226 Difference]: Without dead ends: 324 [2023-02-15 14:00:06,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2023-02-15 14:00:06,623 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 48 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:06,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 427 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-02-15 14:00:06,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 307. [2023-02-15 14:00:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 235 states have (on average 1.3021276595744682) internal successors, (306), 240 states have internal predecessors, (306), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2023-02-15 14:00:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 426 transitions. [2023-02-15 14:00:06,645 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 426 transitions. Word has length 53 [2023-02-15 14:00:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:06,646 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 426 transitions. [2023-02-15 14:00:06,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 14:00:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 426 transitions. [2023-02-15 14:00:06,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-15 14:00:06,647 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:06,647 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:06,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:06,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-15 14:00:06,849 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:06,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:06,850 INFO L85 PathProgramCache]: Analyzing trace with hash 726408517, now seen corresponding path program 1 times [2023-02-15 14:00:06,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:06,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300424250] [2023-02-15 14:00:06,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:06,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:06,856 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:06,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151143096] [2023-02-15 14:00:06,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:06,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:06,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:06,864 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:06,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 14:00:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:06,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:00:06,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-02-15 14:00:06,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:06,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300424250] [2023-02-15 14:00:06,929 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151143096] [2023-02-15 14:00:06,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151143096] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:06,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:06,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 14:00:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644966892] [2023-02-15 14:00:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:06,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:00:06,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:06,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:00:06,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:00:06,931 INFO L87 Difference]: Start difference. First operand 307 states and 426 transitions. Second operand has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-15 14:00:06,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:06,965 INFO L93 Difference]: Finished difference Result 307 states and 426 transitions. [2023-02-15 14:00:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 14:00:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-02-15 14:00:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:06,969 INFO L225 Difference]: With dead ends: 307 [2023-02-15 14:00:06,969 INFO L226 Difference]: Without dead ends: 306 [2023-02-15 14:00:06,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:06,969 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 7 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:06,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 202 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-02-15 14:00:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-02-15 14:00:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 235 states have (on average 1.2893617021276595) internal successors, (303), 239 states have internal predecessors, (303), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2023-02-15 14:00:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 423 transitions. [2023-02-15 14:00:06,981 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 423 transitions. Word has length 55 [2023-02-15 14:00:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:06,981 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 423 transitions. [2023-02-15 14:00:06,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-15 14:00:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 423 transitions. [2023-02-15 14:00:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 14:00:06,982 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:06,982 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:07,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-02-15 14:00:07,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-15 14:00:07,188 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1043827591, now seen corresponding path program 1 times [2023-02-15 14:00:07,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:07,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100238310] [2023-02-15 14:00:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:07,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:07,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:07,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419416036] [2023-02-15 14:00:07,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:07,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:07,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:07,217 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:07,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 14:00:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:07,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 14:00:07,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-15 14:00:07,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-15 14:00:07,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:07,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100238310] [2023-02-15 14:00:07,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:07,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419416036] [2023-02-15 14:00:07,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419416036] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:00:07,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:00:07,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-02-15 14:00:07,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375138680] [2023-02-15 14:00:07,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:07,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 14:00:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:07,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 14:00:07,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-02-15 14:00:07,907 INFO L87 Difference]: Start difference. First operand 306 states and 423 transitions. Second operand has 20 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 9 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-15 14:00:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:09,747 INFO L93 Difference]: Finished difference Result 608 states and 826 transitions. [2023-02-15 14:00:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 14:00:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 9 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 56 [2023-02-15 14:00:09,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:09,749 INFO L225 Difference]: With dead ends: 608 [2023-02-15 14:00:09,749 INFO L226 Difference]: Without dead ends: 394 [2023-02-15 14:00:09,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2023-02-15 14:00:09,750 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 149 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:09,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 979 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-15 14:00:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-02-15 14:00:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 367. [2023-02-15 14:00:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 286 states have (on average 1.2727272727272727) internal successors, (364), 285 states have internal predecessors, (364), 52 states have call successors, (52), 16 states have call predecessors, (52), 19 states have return successors, (85), 65 states have call predecessors, (85), 52 states have call successors, (85) [2023-02-15 14:00:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 501 transitions. [2023-02-15 14:00:09,779 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 501 transitions. Word has length 56 [2023-02-15 14:00:09,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:09,779 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 501 transitions. [2023-02-15 14:00:09,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 16 states have internal predecessors, (56), 9 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-15 14:00:09,780 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 501 transitions. [2023-02-15 14:00:09,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-15 14:00:09,783 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:09,783 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:09,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:09,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:09,989 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash 342724557, now seen corresponding path program 1 times [2023-02-15 14:00:09,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:09,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901106180] [2023-02-15 14:00:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:09,997 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:10,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26370792] [2023-02-15 14:00:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:10,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:10,017 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:10,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 14:00:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:10,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:00:10,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-02-15 14:00:10,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:10,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:10,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901106180] [2023-02-15 14:00:10,117 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:10,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26370792] [2023-02-15 14:00:10,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26370792] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:10,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:10,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:00:10,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634583448] [2023-02-15 14:00:10,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:10,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:00:10,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:10,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:00:10,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:10,119 INFO L87 Difference]: Start difference. First operand 367 states and 501 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 14:00:10,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:10,213 INFO L93 Difference]: Finished difference Result 690 states and 937 transitions. [2023-02-15 14:00:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 14:00:10,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2023-02-15 14:00:10,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:10,215 INFO L225 Difference]: With dead ends: 690 [2023-02-15 14:00:10,215 INFO L226 Difference]: Without dead ends: 372 [2023-02-15 14:00:10,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-15 14:00:10,217 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 41 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:10,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 336 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:10,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-02-15 14:00:10,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 363. [2023-02-15 14:00:10,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 283 states have (on average 1.2614840989399294) internal successors, (357), 282 states have internal predecessors, (357), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (79), 63 states have call predecessors, (79), 50 states have call successors, (79) [2023-02-15 14:00:10,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 486 transitions. [2023-02-15 14:00:10,227 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 486 transitions. Word has length 64 [2023-02-15 14:00:10,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:10,227 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 486 transitions. [2023-02-15 14:00:10,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 14:00:10,228 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 486 transitions. [2023-02-15 14:00:10,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-15 14:00:10,228 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:10,228 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:10,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:10,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:10,433 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:10,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1354749825, now seen corresponding path program 1 times [2023-02-15 14:00:10,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:10,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201703740] [2023-02-15 14:00:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:10,439 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:10,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756525507] [2023-02-15 14:00:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:10,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:10,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:10,453 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:10,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 14:00:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:10,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 14:00:10,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-15 14:00:10,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:10,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:10,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201703740] [2023-02-15 14:00:10,575 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:10,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756525507] [2023-02-15 14:00:10,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756525507] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:10,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:10,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 14:00:10,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143614838] [2023-02-15 14:00:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:10,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 14:00:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 14:00:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:00:10,576 INFO L87 Difference]: Start difference. First operand 363 states and 486 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-15 14:00:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:10,655 INFO L93 Difference]: Finished difference Result 370 states and 486 transitions. [2023-02-15 14:00:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 14:00:10,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2023-02-15 14:00:10,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:10,657 INFO L225 Difference]: With dead ends: 370 [2023-02-15 14:00:10,657 INFO L226 Difference]: Without dead ends: 369 [2023-02-15 14:00:10,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-02-15 14:00:10,659 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 44 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:10,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 321 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:10,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-02-15 14:00:10,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 363. [2023-02-15 14:00:10,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 283 states have (on average 1.254416961130742) internal successors, (355), 282 states have internal predecessors, (355), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (79), 63 states have call predecessors, (79), 50 states have call successors, (79) [2023-02-15 14:00:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 484 transitions. [2023-02-15 14:00:10,687 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 484 transitions. Word has length 66 [2023-02-15 14:00:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:10,687 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 484 transitions. [2023-02-15 14:00:10,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-15 14:00:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 484 transitions. [2023-02-15 14:00:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-02-15 14:00:10,688 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:10,688 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:10,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:10,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-02-15 14:00:10,893 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:10,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 952428439, now seen corresponding path program 1 times [2023-02-15 14:00:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:10,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066287010] [2023-02-15 14:00:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:10,906 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:10,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138862284] [2023-02-15 14:00:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:10,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:10,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:10,910 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:10,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 14:00:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:10,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 14:00:10,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-15 14:00:11,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-15 14:00:11,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:11,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066287010] [2023-02-15 14:00:11,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:11,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138862284] [2023-02-15 14:00:11,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138862284] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:00:11,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:00:11,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-02-15 14:00:11,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592585468] [2023-02-15 14:00:11,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:11,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 14:00:11,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:11,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 14:00:11,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:00:11,076 INFO L87 Difference]: Start difference. First operand 363 states and 484 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 12 states have internal predecessors, (53), 7 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 14:00:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:11,223 INFO L93 Difference]: Finished difference Result 444 states and 591 transitions. [2023-02-15 14:00:11,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 14:00:11,224 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 12 states have internal predecessors, (53), 7 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 67 [2023-02-15 14:00:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:11,225 INFO L225 Difference]: With dead ends: 444 [2023-02-15 14:00:11,226 INFO L226 Difference]: Without dead ends: 443 [2023-02-15 14:00:11,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-02-15 14:00:11,226 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 94 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:11,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 566 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:11,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-02-15 14:00:11,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 422. [2023-02-15 14:00:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 328 states have (on average 1.2591463414634145) internal successors, (413), 326 states have internal predecessors, (413), 62 states have call successors, (62), 19 states have call predecessors, (62), 22 states have return successors, (100), 76 states have call predecessors, (100), 62 states have call successors, (100) [2023-02-15 14:00:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 575 transitions. [2023-02-15 14:00:11,242 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 575 transitions. Word has length 67 [2023-02-15 14:00:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:11,242 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 575 transitions. [2023-02-15 14:00:11,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 12 states have internal predecessors, (53), 7 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 14:00:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 575 transitions. [2023-02-15 14:00:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-15 14:00:11,243 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:11,243 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:11,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:11,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-02-15 14:00:11,448 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:11,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:11,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1835230983, now seen corresponding path program 1 times [2023-02-15 14:00:11,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:11,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876349719] [2023-02-15 14:00:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:11,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:11,455 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:11,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153820783] [2023-02-15 14:00:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:11,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:11,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:11,457 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:11,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 14:00:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:11,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 14:00:11,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-15 14:00:11,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 35 proven. 23 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-02-15 14:00:11,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:11,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876349719] [2023-02-15 14:00:11,652 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:11,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153820783] [2023-02-15 14:00:11,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153820783] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:00:11,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:00:11,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-02-15 14:00:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687960727] [2023-02-15 14:00:11,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:11,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 14:00:11,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 14:00:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-02-15 14:00:11,654 INFO L87 Difference]: Start difference. First operand 422 states and 575 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 8 states have internal predecessors, (50), 6 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-15 14:00:11,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:11,795 INFO L93 Difference]: Finished difference Result 821 states and 1126 transitions. [2023-02-15 14:00:11,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 14:00:11,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 8 states have internal predecessors, (50), 6 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 76 [2023-02-15 14:00:11,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:11,797 INFO L225 Difference]: With dead ends: 821 [2023-02-15 14:00:11,798 INFO L226 Difference]: Without dead ends: 439 [2023-02-15 14:00:11,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 134 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:00:11,801 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 67 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:11,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 452 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:11,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-02-15 14:00:11,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 423. [2023-02-15 14:00:11,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 328 states have (on average 1.2560975609756098) internal successors, (412), 327 states have internal predecessors, (412), 62 states have call successors, (62), 20 states have call predecessors, (62), 23 states have return successors, (98), 75 states have call predecessors, (98), 62 states have call successors, (98) [2023-02-15 14:00:11,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 572 transitions. [2023-02-15 14:00:11,814 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 572 transitions. Word has length 76 [2023-02-15 14:00:11,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:11,814 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 572 transitions. [2023-02-15 14:00:11,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 8 states have internal predecessors, (50), 6 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-15 14:00:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 572 transitions. [2023-02-15 14:00:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-02-15 14:00:11,815 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:11,815 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:11,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:12,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-15 14:00:12,021 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:12,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:12,022 INFO L85 PathProgramCache]: Analyzing trace with hash -637059568, now seen corresponding path program 2 times [2023-02-15 14:00:12,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:12,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061353539] [2023-02-15 14:00:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:12,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:12,027 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:12,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554795314] [2023-02-15 14:00:12,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:00:12,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:12,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:12,031 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:12,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 14:00:12,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:00:12,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:00:12,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 14:00:12,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-02-15 14:00:12,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-02-15 14:00:12,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:12,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061353539] [2023-02-15 14:00:12,282 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:12,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554795314] [2023-02-15 14:00:12,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554795314] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:00:12,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:00:12,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-02-15 14:00:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078260902] [2023-02-15 14:00:12,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:12,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 14:00:12,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:12,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 14:00:12,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:00:12,292 INFO L87 Difference]: Start difference. First operand 423 states and 572 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 12 states have internal predecessors, (63), 7 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 14:00:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:12,550 INFO L93 Difference]: Finished difference Result 481 states and 627 transitions. [2023-02-15 14:00:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 14:00:12,550 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 12 states have internal predecessors, (63), 7 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 72 [2023-02-15 14:00:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:12,552 INFO L225 Difference]: With dead ends: 481 [2023-02-15 14:00:12,552 INFO L226 Difference]: Without dead ends: 480 [2023-02-15 14:00:12,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:00:12,553 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 144 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:12,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 495 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:00:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-15 14:00:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 472. [2023-02-15 14:00:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 366 states have (on average 1.2459016393442623) internal successors, (456), 367 states have internal predecessors, (456), 66 states have call successors, (66), 24 states have call predecessors, (66), 30 states have return successors, (103), 80 states have call predecessors, (103), 66 states have call successors, (103) [2023-02-15 14:00:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 625 transitions. [2023-02-15 14:00:12,578 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 625 transitions. Word has length 72 [2023-02-15 14:00:12,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:12,578 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 625 transitions. [2023-02-15 14:00:12,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 12 states have internal predecessors, (63), 7 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 14:00:12,578 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 625 transitions. [2023-02-15 14:00:12,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-15 14:00:12,579 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:12,579 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:12,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:12,784 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash -927342394, now seen corresponding path program 1 times [2023-02-15 14:00:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:12,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246897733] [2023-02-15 14:00:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:12,789 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:12,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602531524] [2023-02-15 14:00:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:12,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:12,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:12,790 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:12,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-15 14:00:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:12,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 14:00:12,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-02-15 14:00:12,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:00:12,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:12,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246897733] [2023-02-15 14:00:12,897 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:12,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602531524] [2023-02-15 14:00:12,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602531524] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:00:12,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:00:12,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-02-15 14:00:12,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469810493] [2023-02-15 14:00:12,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:00:12,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 14:00:12,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:12,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 14:00:12,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:00:12,899 INFO L87 Difference]: Start difference. First operand 472 states and 625 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-15 14:00:13,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:13,033 INFO L93 Difference]: Finished difference Result 886 states and 1184 transitions. [2023-02-15 14:00:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 14:00:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2023-02-15 14:00:13,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:13,036 INFO L225 Difference]: With dead ends: 886 [2023-02-15 14:00:13,036 INFO L226 Difference]: Without dead ends: 471 [2023-02-15 14:00:13,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:00:13,038 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 57 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:13,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 235 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:13,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-02-15 14:00:13,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 464. [2023-02-15 14:00:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 359 states have (on average 1.2479108635097493) internal successors, (448), 361 states have internal predecessors, (448), 66 states have call successors, (66), 24 states have call predecessors, (66), 29 states have return successors, (101), 78 states have call predecessors, (101), 66 states have call successors, (101) [2023-02-15 14:00:13,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 615 transitions. [2023-02-15 14:00:13,051 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 615 transitions. Word has length 76 [2023-02-15 14:00:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:13,051 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 615 transitions. [2023-02-15 14:00:13,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-15 14:00:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 615 transitions. [2023-02-15 14:00:13,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-02-15 14:00:13,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:13,053 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:13,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:13,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-15 14:00:13,257 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:13,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:13,258 INFO L85 PathProgramCache]: Analyzing trace with hash 291419757, now seen corresponding path program 2 times [2023-02-15 14:00:13,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:13,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228681012] [2023-02-15 14:00:13,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:13,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:13,265 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:13,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824847648] [2023-02-15 14:00:13,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:00:13,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:13,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:13,275 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:13,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-15 14:00:13,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:00:13,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:00:13,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 14:00:13,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-15 14:00:13,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:13,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:13,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228681012] [2023-02-15 14:00:13,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:13,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824847648] [2023-02-15 14:00:13,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824847648] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:00:13,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:00:13,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-02-15 14:00:13,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829492016] [2023-02-15 14:00:13,725 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:13,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 14:00:13,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 14:00:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:00:13,727 INFO L87 Difference]: Start difference. First operand 464 states and 615 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 5 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 14:00:13,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:13,904 INFO L93 Difference]: Finished difference Result 498 states and 649 transitions. [2023-02-15 14:00:13,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 14:00:13,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 5 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 80 [2023-02-15 14:00:13,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:13,907 INFO L225 Difference]: With dead ends: 498 [2023-02-15 14:00:13,907 INFO L226 Difference]: Without dead ends: 497 [2023-02-15 14:00:13,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2023-02-15 14:00:13,907 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 55 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:13,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 504 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:00:13,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-02-15 14:00:13,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 488. [2023-02-15 14:00:13,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 378 states have (on average 1.2380952380952381) internal successors, (468), 380 states have internal predecessors, (468), 68 states have call successors, (68), 27 states have call predecessors, (68), 32 states have return successors, (103), 80 states have call predecessors, (103), 68 states have call successors, (103) [2023-02-15 14:00:13,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 639 transitions. [2023-02-15 14:00:13,920 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 639 transitions. Word has length 80 [2023-02-15 14:00:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:13,921 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 639 transitions. [2023-02-15 14:00:13,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 10 states have internal predecessors, (45), 5 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 14:00:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 639 transitions. [2023-02-15 14:00:13,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-02-15 14:00:13,921 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:13,921 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:13,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:14,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:14,126 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:14,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1026169764, now seen corresponding path program 1 times [2023-02-15 14:00:14,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:14,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101481287] [2023-02-15 14:00:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:14,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:14,132 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:14,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094745995] [2023-02-15 14:00:14,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:14,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:14,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:14,148 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:14,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-15 14:00:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:14,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:00:14,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-02-15 14:00:14,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:14,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101481287] [2023-02-15 14:00:14,397 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:14,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094745995] [2023-02-15 14:00:14,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094745995] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:00:14,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:00:14,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-02-15 14:00:14,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025735722] [2023-02-15 14:00:14,398 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:14,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:00:14,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:00:14,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:14,399 INFO L87 Difference]: Start difference. First operand 488 states and 639 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 14:00:14,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:14,428 INFO L93 Difference]: Finished difference Result 528 states and 701 transitions. [2023-02-15 14:00:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:00:14,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2023-02-15 14:00:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:14,443 INFO L225 Difference]: With dead ends: 528 [2023-02-15 14:00:14,443 INFO L226 Difference]: Without dead ends: 527 [2023-02-15 14:00:14,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:14,443 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 14 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:14,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 149 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-02-15 14:00:14,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 500. [2023-02-15 14:00:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 390 states have (on average 1.2230769230769232) internal successors, (477), 386 states have internal predecessors, (477), 68 states have call successors, (68), 27 states have call predecessors, (68), 32 states have return successors, (103), 86 states have call predecessors, (103), 68 states have call successors, (103) [2023-02-15 14:00:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 648 transitions. [2023-02-15 14:00:14,479 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 648 transitions. Word has length 84 [2023-02-15 14:00:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:14,479 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 648 transitions. [2023-02-15 14:00:14,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 14:00:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 648 transitions. [2023-02-15 14:00:14,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-02-15 14:00:14,480 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:14,480 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:14,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:14,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:14,682 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:14,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:14,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1746491672, now seen corresponding path program 1 times [2023-02-15 14:00:14,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:14,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182530273] [2023-02-15 14:00:14,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:14,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:14,688 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:14,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820232452] [2023-02-15 14:00:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:14,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:14,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:14,694 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:14,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-15 14:00:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:00:14,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 14:00:14,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-02-15 14:00:14,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:14,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:00:14,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182530273] [2023-02-15 14:00:14,909 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:00:14,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820232452] [2023-02-15 14:00:14,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820232452] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:00:14,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:00:14,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-02-15 14:00:14,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355531040] [2023-02-15 14:00:14,909 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:00:14,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:00:14,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:00:14,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:00:14,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:14,910 INFO L87 Difference]: Start difference. First operand 500 states and 648 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 14:00:14,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:00:14,941 INFO L93 Difference]: Finished difference Result 527 states and 692 transitions. [2023-02-15 14:00:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:00:14,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 85 [2023-02-15 14:00:14,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:00:14,943 INFO L225 Difference]: With dead ends: 527 [2023-02-15 14:00:14,945 INFO L226 Difference]: Without dead ends: 526 [2023-02-15 14:00:14,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:00:14,946 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 10 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:00:14,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 151 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:00:14,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-02-15 14:00:14,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 485. [2023-02-15 14:00:14,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 375 states have (on average 1.224) internal successors, (459), 378 states have internal predecessors, (459), 68 states have call successors, (68), 27 states have call predecessors, (68), 32 states have return successors, (103), 79 states have call predecessors, (103), 68 states have call successors, (103) [2023-02-15 14:00:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 630 transitions. [2023-02-15 14:00:14,962 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 630 transitions. Word has length 85 [2023-02-15 14:00:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:00:14,962 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 630 transitions. [2023-02-15 14:00:14,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 14:00:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 630 transitions. [2023-02-15 14:00:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-15 14:00:14,963 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:00:14,963 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:00:14,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-02-15 14:00:15,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:15,168 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:00:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:00:15,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1693332954, now seen corresponding path program 2 times [2023-02-15 14:00:15,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:00:15,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429743982] [2023-02-15 14:00:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:00:15,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:00:15,175 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:00:15,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610526735] [2023-02-15 14:00:15,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:00:15,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:00:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:00:15,177 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:00:15,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-15 14:00:15,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:00:15,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:00:15,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 40 conjunts are in the unsatisfiable core [2023-02-15 14:00:15,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:00:15,502 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 56 proven. 17 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-02-15 14:00:15,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:00:42,407 WARN L233 SmtUtils]: Spent 20.90s on a formula simplification. DAG size of input: 64 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 14:00:58,732 WARN L233 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 14:01:20,788 WARN L233 SmtUtils]: Spent 14.04s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 14:01:20,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429743982] [2023-02-15 14:01:20,791 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610526735] [2023-02-15 14:01:20,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610526735] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:01:20,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:01:20,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-02-15 14:01:20,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945377927] [2023-02-15 14:01:20,792 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:20,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 14:01:20,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:20,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 14:01:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=527, Unknown=6, NotChecked=0, Total=600 [2023-02-15 14:01:20,792 INFO L87 Difference]: Start difference. First operand 485 states and 630 transitions. Second operand has 19 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 8 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-02-15 14:01:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:25,203 INFO L93 Difference]: Finished difference Result 534 states and 718 transitions. [2023-02-15 14:01:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 14:01:25,204 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 8 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 86 [2023-02-15 14:01:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:25,206 INFO L225 Difference]: With dead ends: 534 [2023-02-15 14:01:25,206 INFO L226 Difference]: Without dead ends: 532 [2023-02-15 14:01:25,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 67.3s TimeCoverageRelationStatistics Valid=153, Invalid=1100, Unknown=7, NotChecked=0, Total=1260 [2023-02-15 14:01:25,207 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 80 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:25,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 443 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:01:25,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-02-15 14:01:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 497. [2023-02-15 14:01:25,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 385 states have (on average 1.2181818181818183) internal successors, (469), 388 states have internal predecessors, (469), 68 states have call successors, (68), 27 states have call predecessors, (68), 34 states have return successors, (106), 81 states have call predecessors, (106), 68 states have call successors, (106) [2023-02-15 14:01:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 643 transitions. [2023-02-15 14:01:25,225 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 643 transitions. Word has length 86 [2023-02-15 14:01:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:25,227 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 643 transitions. [2023-02-15 14:01:25,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 8 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-02-15 14:01:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 643 transitions. [2023-02-15 14:01:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-02-15 14:01:25,228 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:25,228 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:25,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:25,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:25,429 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:25,430 INFO L85 PathProgramCache]: Analyzing trace with hash 50973190, now seen corresponding path program 3 times [2023-02-15 14:01:25,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:25,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759883408] [2023-02-15 14:01:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:25,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:25,435 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:25,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581234107] [2023-02-15 14:01:25,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:01:25,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:25,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:25,461 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:25,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-15 14:01:25,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 14:01:25,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:25,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 14:01:25,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:25,654 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 69 proven. 7 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-02-15 14:01:25,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 69 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-02-15 14:01:25,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:25,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759883408] [2023-02-15 14:01:25,855 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:25,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581234107] [2023-02-15 14:01:25,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581234107] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:25,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:25,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 18 [2023-02-15 14:01:25,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086832940] [2023-02-15 14:01:25,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:25,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 14:01:25,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:25,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 14:01:25,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-02-15 14:01:25,856 INFO L87 Difference]: Start difference. First operand 497 states and 643 transitions. Second operand has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 16 states have internal predecessors, (77), 10 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-02-15 14:01:26,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:26,188 INFO L93 Difference]: Finished difference Result 946 states and 1266 transitions. [2023-02-15 14:01:26,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 14:01:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 16 states have internal predecessors, (77), 10 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 96 [2023-02-15 14:01:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:26,190 INFO L225 Difference]: With dead ends: 946 [2023-02-15 14:01:26,190 INFO L226 Difference]: Without dead ends: 523 [2023-02-15 14:01:26,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 174 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2023-02-15 14:01:26,192 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 95 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:26,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 536 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:01:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-02-15 14:01:26,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 486. [2023-02-15 14:01:26,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 375 states have (on average 1.2186666666666666) internal successors, (457), 379 states have internal predecessors, (457), 67 states have call successors, (67), 27 states have call predecessors, (67), 34 states have return successors, (119), 79 states have call predecessors, (119), 67 states have call successors, (119) [2023-02-15 14:01:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 643 transitions. [2023-02-15 14:01:26,205 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 643 transitions. Word has length 96 [2023-02-15 14:01:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:26,205 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 643 transitions. [2023-02-15 14:01:26,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.277777777777778) internal successors, (77), 16 states have internal predecessors, (77), 10 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-02-15 14:01:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 643 transitions. [2023-02-15 14:01:26,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-02-15 14:01:26,206 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:26,206 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:26,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:26,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-02-15 14:01:26,411 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:26,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1255466727, now seen corresponding path program 1 times [2023-02-15 14:01:26,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:26,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039699776] [2023-02-15 14:01:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:26,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:26,418 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:26,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035891081] [2023-02-15 14:01:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:26,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:26,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:26,424 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:26,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-02-15 14:01:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:26,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:01:26,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-02-15 14:01:26,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-02-15 14:01:26,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039699776] [2023-02-15 14:01:26,719 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:26,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035891081] [2023-02-15 14:01:26,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035891081] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:26,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:26,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-02-15 14:01:26,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313260851] [2023-02-15 14:01:26,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:26,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 14:01:26,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 14:01:26,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:01:26,721 INFO L87 Difference]: Start difference. First operand 486 states and 643 transitions. Second operand has 16 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-15 14:01:27,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:27,006 INFO L93 Difference]: Finished difference Result 661 states and 866 transitions. [2023-02-15 14:01:27,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 14:01:27,006 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 107 [2023-02-15 14:01:27,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:27,008 INFO L225 Difference]: With dead ends: 661 [2023-02-15 14:01:27,008 INFO L226 Difference]: Without dead ends: 658 [2023-02-15 14:01:27,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:01:27,009 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 136 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:27,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 571 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:01:27,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-02-15 14:01:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 635. [2023-02-15 14:01:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 493 states have (on average 1.2251521298174441) internal successors, (604), 497 states have internal predecessors, (604), 90 states have call successors, (90), 33 states have call predecessors, (90), 42 states have return successors, (158), 104 states have call predecessors, (158), 90 states have call successors, (158) [2023-02-15 14:01:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 852 transitions. [2023-02-15 14:01:27,061 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 852 transitions. Word has length 107 [2023-02-15 14:01:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:27,061 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 852 transitions. [2023-02-15 14:01:27,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-15 14:01:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 852 transitions. [2023-02-15 14:01:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-02-15 14:01:27,063 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:27,063 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:27,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-02-15 14:01:27,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-02-15 14:01:27,264 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:27,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:27,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1905506534, now seen corresponding path program 2 times [2023-02-15 14:01:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:27,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161537232] [2023-02-15 14:01:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:27,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:27,269 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:27,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540527632] [2023-02-15 14:01:27,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:01:27,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:27,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:27,271 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:27,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-02-15 14:01:27,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:01:27,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:27,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:01:27,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-02-15 14:01:27,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:01:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161537232] [2023-02-15 14:01:27,381 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:27,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540527632] [2023-02-15 14:01:27,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540527632] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:27,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:01:27,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 14:01:27,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913408101] [2023-02-15 14:01:27,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:27,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:01:27,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:27,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:01:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:01:27,383 INFO L87 Difference]: Start difference. First operand 635 states and 852 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-15 14:01:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:27,444 INFO L93 Difference]: Finished difference Result 1014 states and 1369 transitions. [2023-02-15 14:01:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 14:01:27,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 113 [2023-02-15 14:01:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:27,447 INFO L225 Difference]: With dead ends: 1014 [2023-02-15 14:01:27,447 INFO L226 Difference]: Without dead ends: 553 [2023-02-15 14:01:27,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:01:27,448 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 23 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:27,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 213 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:01:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-02-15 14:01:27,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2023-02-15 14:01:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 429 states have (on average 1.2004662004662006) internal successors, (515), 433 states have internal predecessors, (515), 75 states have call successors, (75), 30 states have call predecessors, (75), 38 states have return successors, (129), 88 states have call predecessors, (129), 75 states have call successors, (129) [2023-02-15 14:01:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 719 transitions. [2023-02-15 14:01:27,462 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 719 transitions. Word has length 113 [2023-02-15 14:01:27,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:27,463 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 719 transitions. [2023-02-15 14:01:27,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-02-15 14:01:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 719 transitions. [2023-02-15 14:01:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-02-15 14:01:27,464 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:27,464 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:27,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:27,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-02-15 14:01:27,669 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:27,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:27,669 INFO L85 PathProgramCache]: Analyzing trace with hash -622888842, now seen corresponding path program 1 times [2023-02-15 14:01:27,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:27,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215514873] [2023-02-15 14:01:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:27,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:27,674 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:27,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993372177] [2023-02-15 14:01:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:27,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:27,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:27,676 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:27,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-02-15 14:01:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:27,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 14:01:27,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-02-15 14:01:27,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-02-15 14:01:28,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:28,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215514873] [2023-02-15 14:01:28,393 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:28,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993372177] [2023-02-15 14:01:28,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993372177] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:28,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:28,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-02-15 14:01:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414737831] [2023-02-15 14:01:28,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:28,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 14:01:28,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:28,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 14:01:28,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-02-15 14:01:28,394 INFO L87 Difference]: Start difference. First operand 552 states and 719 transitions. Second operand has 20 states, 17 states have (on average 4.529411764705882) internal successors, (77), 16 states have internal predecessors, (77), 9 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 14:01:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:30,363 INFO L93 Difference]: Finished difference Result 978 states and 1281 transitions. [2023-02-15 14:01:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 14:01:30,363 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 4.529411764705882) internal successors, (77), 16 states have internal predecessors, (77), 9 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 115 [2023-02-15 14:01:30,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:30,365 INFO L225 Difference]: With dead ends: 978 [2023-02-15 14:01:30,365 INFO L226 Difference]: Without dead ends: 572 [2023-02-15 14:01:30,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2023-02-15 14:01:30,369 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 136 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:30,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1007 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-02-15 14:01:30,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-02-15 14:01:30,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 554. [2023-02-15 14:01:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 432 states have (on average 1.1898148148148149) internal successors, (514), 436 states have internal predecessors, (514), 72 states have call successors, (72), 31 states have call predecessors, (72), 40 states have return successors, (122), 86 states have call predecessors, (122), 72 states have call successors, (122) [2023-02-15 14:01:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 708 transitions. [2023-02-15 14:01:30,383 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 708 transitions. Word has length 115 [2023-02-15 14:01:30,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:30,384 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 708 transitions. [2023-02-15 14:01:30,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 4.529411764705882) internal successors, (77), 16 states have internal predecessors, (77), 9 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 14:01:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 708 transitions. [2023-02-15 14:01:30,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-02-15 14:01:30,388 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:30,388 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:30,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:30,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:30,593 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash 343501197, now seen corresponding path program 1 times [2023-02-15 14:01:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:30,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248200700] [2023-02-15 14:01:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:30,602 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:30,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [173633064] [2023-02-15 14:01:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:30,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:30,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:30,605 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:30,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-02-15 14:01:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:30,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-15 14:01:30,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 84 proven. 23 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-02-15 14:01:30,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 84 proven. 23 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-02-15 14:01:37,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:37,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248200700] [2023-02-15 14:01:37,946 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:37,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173633064] [2023-02-15 14:01:37,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173633064] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:37,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:37,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 31 [2023-02-15 14:01:37,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636534193] [2023-02-15 14:01:37,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:37,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 14:01:37,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 14:01:37,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=890, Unknown=3, NotChecked=0, Total=992 [2023-02-15 14:01:37,948 INFO L87 Difference]: Start difference. First operand 554 states and 708 transitions. Second operand has 32 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 28 states have internal predecessors, (90), 13 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-15 14:01:42,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:42,291 INFO L93 Difference]: Finished difference Result 1431 states and 1919 transitions. [2023-02-15 14:01:42,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-15 14:01:42,292 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 28 states have internal predecessors, (90), 13 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 120 [2023-02-15 14:01:42,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:42,296 INFO L225 Difference]: With dead ends: 1431 [2023-02-15 14:01:42,296 INFO L226 Difference]: Without dead ends: 1049 [2023-02-15 14:01:42,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=324, Invalid=2535, Unknown=3, NotChecked=0, Total=2862 [2023-02-15 14:01:42,298 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 208 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 2033 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:42,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1477 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2033 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-02-15 14:01:42,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2023-02-15 14:01:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 853. [2023-02-15 14:01:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 669 states have (on average 1.2361733931240657) internal successors, (827), 671 states have internal predecessors, (827), 122 states have call successors, (122), 42 states have call predecessors, (122), 52 states have return successors, (205), 139 states have call predecessors, (205), 122 states have call successors, (205) [2023-02-15 14:01:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1154 transitions. [2023-02-15 14:01:42,350 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1154 transitions. Word has length 120 [2023-02-15 14:01:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:42,350 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1154 transitions. [2023-02-15 14:01:42,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 28 states have internal predecessors, (90), 13 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-15 14:01:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1154 transitions. [2023-02-15 14:01:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-15 14:01:42,351 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:42,351 INFO L195 NwaCegarLoop]: trace histogram [14, 11, 7, 7, 7, 7, 7, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:42,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-02-15 14:01:42,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-02-15 14:01:42,556 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:42,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:42,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1667958899, now seen corresponding path program 2 times [2023-02-15 14:01:42,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:42,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808280842] [2023-02-15 14:01:42,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:42,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:42,565 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:42,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886898061] [2023-02-15 14:01:42,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:01:42,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:42,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:42,566 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:42,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-02-15 14:01:42,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:01:42,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:42,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 14:01:42,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 241 proven. 10 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-02-15 14:01:42,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 97 proven. 46 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-02-15 14:01:42,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:42,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808280842] [2023-02-15 14:01:42,854 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:42,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886898061] [2023-02-15 14:01:42,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886898061] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:42,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:42,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2023-02-15 14:01:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625410537] [2023-02-15 14:01:42,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:42,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 14:01:42,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 14:01:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-02-15 14:01:42,855 INFO L87 Difference]: Start difference. First operand 853 states and 1154 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 11 states have internal predecessors, (60), 8 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 14:01:43,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:43,091 INFO L93 Difference]: Finished difference Result 1644 states and 2238 transitions. [2023-02-15 14:01:43,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 14:01:43,091 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 11 states have internal predecessors, (60), 8 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 140 [2023-02-15 14:01:43,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:43,095 INFO L225 Difference]: With dead ends: 1644 [2023-02-15 14:01:43,095 INFO L226 Difference]: Without dead ends: 889 [2023-02-15 14:01:43,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 254 SyntacticMatches, 12 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:01:43,098 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 92 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:43,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 588 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:01:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2023-02-15 14:01:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 861. [2023-02-15 14:01:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 674 states have (on average 1.2329376854599408) internal successors, (831), 678 states have internal predecessors, (831), 123 states have call successors, (123), 44 states have call predecessors, (123), 54 states have return successors, (202), 138 states have call predecessors, (202), 123 states have call successors, (202) [2023-02-15 14:01:43,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1156 transitions. [2023-02-15 14:01:43,128 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1156 transitions. Word has length 140 [2023-02-15 14:01:43,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:43,128 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1156 transitions. [2023-02-15 14:01:43,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 11 states have internal predecessors, (60), 8 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 14:01:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1156 transitions. [2023-02-15 14:01:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-02-15 14:01:43,129 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:43,129 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:43,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:43,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-02-15 14:01:43,334 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:43,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:43,334 INFO L85 PathProgramCache]: Analyzing trace with hash -250945720, now seen corresponding path program 1 times [2023-02-15 14:01:43,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:43,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220307984] [2023-02-15 14:01:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:43,340 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:43,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325991424] [2023-02-15 14:01:43,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:43,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:43,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:43,342 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:43,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-02-15 14:01:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:43,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 14:01:43,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-02-15 14:01:43,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-02-15 14:01:43,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:43,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220307984] [2023-02-15 14:01:43,622 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:43,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325991424] [2023-02-15 14:01:43,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325991424] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:43,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:43,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-02-15 14:01:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306777059] [2023-02-15 14:01:43,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:43,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 14:01:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:43,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 14:01:43,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:01:43,624 INFO L87 Difference]: Start difference. First operand 861 states and 1156 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 7 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 14:01:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:43,844 INFO L93 Difference]: Finished difference Result 870 states and 1156 transitions. [2023-02-15 14:01:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 14:01:43,844 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 7 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 126 [2023-02-15 14:01:43,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:43,849 INFO L225 Difference]: With dead ends: 870 [2023-02-15 14:01:43,849 INFO L226 Difference]: Without dead ends: 869 [2023-02-15 14:01:43,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:01:43,850 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 112 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:43,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 456 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:01:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2023-02-15 14:01:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 861. [2023-02-15 14:01:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 674 states have (on average 1.228486646884273) internal successors, (828), 678 states have internal predecessors, (828), 123 states have call successors, (123), 44 states have call predecessors, (123), 54 states have return successors, (202), 138 states have call predecessors, (202), 123 states have call successors, (202) [2023-02-15 14:01:43,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1153 transitions. [2023-02-15 14:01:43,896 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1153 transitions. Word has length 126 [2023-02-15 14:01:43,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:43,897 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1153 transitions. [2023-02-15 14:01:43,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 7 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 14:01:43,898 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1153 transitions. [2023-02-15 14:01:43,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-02-15 14:01:43,898 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:43,899 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 7, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:43,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:44,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-02-15 14:01:44,103 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:44,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1285538565, now seen corresponding path program 2 times [2023-02-15 14:01:44,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:44,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380791615] [2023-02-15 14:01:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:44,109 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:44,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468406184] [2023-02-15 14:01:44,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:01:44,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:44,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:44,110 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:44,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-02-15 14:01:44,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:01:44,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:44,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 14:01:44,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 146 proven. 7 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-02-15 14:01:44,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:44,347 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-02-15 14:01:44,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:44,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380791615] [2023-02-15 14:01:44,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:44,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468406184] [2023-02-15 14:01:44,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468406184] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:44,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:44,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-02-15 14:01:44,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838323771] [2023-02-15 14:01:44,348 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:44,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 14:01:44,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:44,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 14:01:44,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-02-15 14:01:44,348 INFO L87 Difference]: Start difference. First operand 861 states and 1153 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-15 14:01:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:44,521 INFO L93 Difference]: Finished difference Result 1507 states and 2057 transitions. [2023-02-15 14:01:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 14:01:44,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 130 [2023-02-15 14:01:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:44,524 INFO L225 Difference]: With dead ends: 1507 [2023-02-15 14:01:44,524 INFO L226 Difference]: Without dead ends: 859 [2023-02-15 14:01:44,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 242 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:01:44,526 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 66 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:44,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 416 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:01:44,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-02-15 14:01:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 850. [2023-02-15 14:01:44,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 665 states have (on average 1.2285714285714286) internal successors, (817), 669 states have internal predecessors, (817), 122 states have call successors, (122), 44 states have call predecessors, (122), 53 states have return successors, (199), 136 states have call predecessors, (199), 122 states have call successors, (199) [2023-02-15 14:01:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1138 transitions. [2023-02-15 14:01:44,554 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1138 transitions. Word has length 130 [2023-02-15 14:01:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:44,554 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1138 transitions. [2023-02-15 14:01:44,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-02-15 14:01:44,555 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1138 transitions. [2023-02-15 14:01:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-02-15 14:01:44,555 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:44,555 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:44,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:44,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:44,760 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:44,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash 477473427, now seen corresponding path program 3 times [2023-02-15 14:01:44,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:44,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344483099] [2023-02-15 14:01:44,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:44,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:44,769 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:44,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388919323] [2023-02-15 14:01:44,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:01:44,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:44,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:44,771 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:44,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-02-15 14:01:44,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-02-15 14:01:44,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:44,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 14:01:44,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-02-15 14:01:44,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:01:44,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:44,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344483099] [2023-02-15 14:01:44,850 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:44,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388919323] [2023-02-15 14:01:44,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388919323] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:44,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:01:44,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 14:01:44,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143126318] [2023-02-15 14:01:44,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:44,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:01:44,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:44,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:01:44,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:01:44,852 INFO L87 Difference]: Start difference. First operand 850 states and 1138 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 14:01:44,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:44,961 INFO L93 Difference]: Finished difference Result 874 states and 1165 transitions. [2023-02-15 14:01:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:01:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 134 [2023-02-15 14:01:44,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:44,965 INFO L225 Difference]: With dead ends: 874 [2023-02-15 14:01:44,965 INFO L226 Difference]: Without dead ends: 873 [2023-02-15 14:01:44,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-15 14:01:44,965 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 21 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:44,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 173 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:01:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-02-15 14:01:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 859. [2023-02-15 14:01:45,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 674 states have (on average 1.2240356083086052) internal successors, (825), 675 states have internal predecessors, (825), 122 states have call successors, (122), 44 states have call predecessors, (122), 53 states have return successors, (199), 139 states have call predecessors, (199), 122 states have call successors, (199) [2023-02-15 14:01:45,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1146 transitions. [2023-02-15 14:01:45,023 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1146 transitions. Word has length 134 [2023-02-15 14:01:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:45,024 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1146 transitions. [2023-02-15 14:01:45,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 14:01:45,024 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1146 transitions. [2023-02-15 14:01:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-02-15 14:01:45,025 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:45,025 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:45,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-02-15 14:01:45,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-02-15 14:01:45,230 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:45,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1359020085, now seen corresponding path program 1 times [2023-02-15 14:01:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:45,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109333302] [2023-02-15 14:01:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:45,235 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:45,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694514609] [2023-02-15 14:01:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:45,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:45,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:45,251 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:45,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-02-15 14:01:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:45,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 14:01:45,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-02-15 14:01:45,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:01:45,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:45,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109333302] [2023-02-15 14:01:45,402 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:45,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694514609] [2023-02-15 14:01:45,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694514609] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:01:45,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:01:45,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-02-15 14:01:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501560758] [2023-02-15 14:01:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:01:45,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 14:01:45,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:45,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 14:01:45,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:01:45,405 INFO L87 Difference]: Start difference. First operand 859 states and 1146 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-02-15 14:01:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:45,604 INFO L93 Difference]: Finished difference Result 1492 states and 2025 transitions. [2023-02-15 14:01:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 14:01:45,605 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 135 [2023-02-15 14:01:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:45,609 INFO L225 Difference]: With dead ends: 1492 [2023-02-15 14:01:45,609 INFO L226 Difference]: Without dead ends: 855 [2023-02-15 14:01:45,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:01:45,611 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 58 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:45,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 335 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:01:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2023-02-15 14:01:45,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 848. [2023-02-15 14:01:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 665 states have (on average 1.2270676691729323) internal successors, (816), 667 states have internal predecessors, (816), 120 states have call successors, (120), 44 states have call predecessors, (120), 53 states have return successors, (192), 136 states have call predecessors, (192), 120 states have call successors, (192) [2023-02-15 14:01:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1128 transitions. [2023-02-15 14:01:45,639 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1128 transitions. Word has length 135 [2023-02-15 14:01:45,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:45,639 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1128 transitions. [2023-02-15 14:01:45,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-02-15 14:01:45,639 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1128 transitions. [2023-02-15 14:01:45,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-15 14:01:45,640 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:45,640 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:45,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:45,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:45,849 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:45,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -934377012, now seen corresponding path program 1 times [2023-02-15 14:01:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:45,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074204254] [2023-02-15 14:01:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:45,857 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:45,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965476957] [2023-02-15 14:01:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:45,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:45,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:45,881 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:45,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-02-15 14:01:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:01:45,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 14:01:45,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:46,006 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-02-15 14:01:46,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:01:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 94 proven. 27 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-02-15 14:01:46,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:01:46,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074204254] [2023-02-15 14:01:46,223 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:01:46,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965476957] [2023-02-15 14:01:46,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965476957] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:01:46,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:01:46,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 14 [2023-02-15 14:01:46,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576721763] [2023-02-15 14:01:46,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:01:46,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 14:01:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:01:46,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 14:01:46,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:01:46,224 INFO L87 Difference]: Start difference. First operand 848 states and 1128 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-02-15 14:01:46,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:01:46,496 INFO L93 Difference]: Finished difference Result 1600 states and 2166 transitions. [2023-02-15 14:01:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 14:01:46,497 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) Word has length 140 [2023-02-15 14:01:46,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:01:46,500 INFO L225 Difference]: With dead ends: 1600 [2023-02-15 14:01:46,500 INFO L226 Difference]: Without dead ends: 818 [2023-02-15 14:01:46,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 258 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2023-02-15 14:01:46,503 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 73 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:01:46,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 434 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:01:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-02-15 14:01:46,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 796. [2023-02-15 14:01:46,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 622 states have (on average 1.2282958199356913) internal successors, (764), 629 states have internal predecessors, (764), 112 states have call successors, (112), 44 states have call predecessors, (112), 52 states have return successors, (166), 122 states have call predecessors, (166), 112 states have call successors, (166) [2023-02-15 14:01:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1042 transitions. [2023-02-15 14:01:46,561 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1042 transitions. Word has length 140 [2023-02-15 14:01:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:01:46,562 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1042 transitions. [2023-02-15 14:01:46,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 8 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 7 states have call successors, (14) [2023-02-15 14:01:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1042 transitions. [2023-02-15 14:01:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-02-15 14:01:46,562 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:01:46,563 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:01:46,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-02-15 14:01:46,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-02-15 14:01:46,767 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:01:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:01:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash -144201003, now seen corresponding path program 2 times [2023-02-15 14:01:46,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:01:46,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798159361] [2023-02-15 14:01:46,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:01:46,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:01:46,773 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:01:46,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131050789] [2023-02-15 14:01:46,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:01:46,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:01:46,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:01:46,775 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:01:46,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-02-15 14:01:46,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:01:46,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:01:46,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-15 14:01:46,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:01:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 145 proven. 22 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-02-15 14:01:47,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:13,778 WARN L233 SmtUtils]: Spent 22.66s on a formula simplification. DAG size of input: 64 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 14:02:32,177 WARN L233 SmtUtils]: Spent 12.05s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 14:02:49,756 WARN L233 SmtUtils]: Spent 10.06s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 14:02:49,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:49,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798159361] [2023-02-15 14:02:49,757 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:02:49,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131050789] [2023-02-15 14:02:49,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131050789] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:49,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:02:49,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-02-15 14:02:49,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328033481] [2023-02-15 14:02:49,758 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:49,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 14:02:49,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:49,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 14:02:49,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=531, Unknown=4, NotChecked=0, Total=600 [2023-02-15 14:02:49,759 INFO L87 Difference]: Start difference. First operand 796 states and 1042 transitions. Second operand has 19 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 18 states have internal predecessors, (67), 8 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-02-15 14:02:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:57,357 INFO L93 Difference]: Finished difference Result 819 states and 1079 transitions. [2023-02-15 14:02:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 14:02:57,358 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 18 states have internal predecessors, (67), 8 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 145 [2023-02-15 14:02:57,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:57,360 INFO L225 Difference]: With dead ends: 819 [2023-02-15 14:02:57,360 INFO L226 Difference]: Without dead ends: 818 [2023-02-15 14:02:57,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 68.7s TimeCoverageRelationStatistics Valid=162, Invalid=1164, Unknown=6, NotChecked=0, Total=1332 [2023-02-15 14:02:57,361 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 84 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:57,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 675 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 14:02:57,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-02-15 14:02:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 800. [2023-02-15 14:02:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 626 states have (on average 1.2268370607028753) internal successors, (768), 632 states have internal predecessors, (768), 112 states have call successors, (112), 44 states have call predecessors, (112), 52 states have return successors, (166), 123 states have call predecessors, (166), 112 states have call successors, (166) [2023-02-15 14:02:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1046 transitions. [2023-02-15 14:02:57,386 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1046 transitions. Word has length 145 [2023-02-15 14:02:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:57,386 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1046 transitions. [2023-02-15 14:02:57,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 18 states have internal predecessors, (67), 8 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-02-15 14:02:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1046 transitions. [2023-02-15 14:02:57,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-02-15 14:02:57,387 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:57,387 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:57,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:57,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:57,591 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:02:57,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash -175263733, now seen corresponding path program 1 times [2023-02-15 14:02:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:57,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694701910] [2023-02-15 14:02:57,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:57,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:57,597 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:02:57,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2035009900] [2023-02-15 14:02:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:57,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:57,599 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:57,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-02-15 14:02:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:57,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-15 14:02:57,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 151 proven. 22 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-02-15 14:02:58,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:06,892 WARN L859 $PredicateComparison]: unable to prove that (and (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse0 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (< .cse0 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse1 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse0) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse0) 2147483646) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse1) 2147483646)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse1) 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse2) 2147483648) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (not (<= 0 (+ .cse2 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse3 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse4 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse3) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse3) 2147483646) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse4) 0)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse4) 2147483647))))) (< .cse3 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse5 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse5) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse5) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (not (<= 0 (+ .cse5 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse6 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse6) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse6) 2147483648) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse7) 2147483646)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse7) 0)))) (not (<= 0 (+ .cse6 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse9 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse8 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse8) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse9) 2147483648) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse8) 2147483647))))) (not (<= 0 (+ .cse9 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse11 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (< .cse10 0)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse11) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse11) 2147483646) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse10) 2147483648)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse10) 0))) (< .cse11 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse12 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (<= 0 (+ .cse12 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse13 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse12) 0)) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse13) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse12) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse13) 2147483647)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse14 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse15 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (< .cse14 0)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse14) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse15) 2147483647) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse14) 0))) (< .cse15 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse17 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|)) (.cse16 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (< .cse16 0)) (not (<= 0 (+ .cse17 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse17) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse16) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse17) 2147483647) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse16) 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse18 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (< .cse18 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse19 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse19) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse18) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse19) 2147483647)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse20 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse21 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse20) 2147483648) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse21) 2147483646)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse21) 0)))) (not (<= 0 (+ .cse20 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse22 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse22) 2147483647)) (< .cse22 0) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse23 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse23) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse23) 2147483646) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)))) (< .cse23 0) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse24 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (<= 0 (+ .cse24 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse24) 2147483648)) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse25 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse25) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (< .cse25 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse27 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|)) (.cse26 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (< .cse26 0)) (not (<= 0 (+ .cse27 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse26) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse27) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse26) 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse29 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|)) (.cse28 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (< .cse28 0)) (not (<= 0 (+ .cse29 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse29) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse28) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse29) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse28) 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse30 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (<= 0 (+ .cse30 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse31 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse30) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse31) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse30) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse31) 2147483647)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse32 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (<= 0 (+ .cse32 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse32) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse32) 2147483647))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse33 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (not (<= 0 (+ .cse33 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse33) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse33) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse34 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse35 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse34) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse34) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse35) 2147483646)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse35) 0)))) (not (<= 0 (+ .cse34 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse36 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#res|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse37 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse36) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse37) 2147483646)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse37) 0)))) (< .cse36 0))))) is different from true [2023-02-15 14:03:13,376 WARN L859 $PredicateComparison]: unable to prove that (and (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse0 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (< .cse0 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse0) 2147483647)) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse1 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse1) 2147483646)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse2) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse1) 0)))) (not (<= 0 (+ .cse2 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse3 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse3) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (< .cse3 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse4 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse4) 2147483648))) (not (<= 0 (+ .cse4 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse5 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (not (<= 0 (+ .cse5 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse5) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse5) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse6 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (< .cse6 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse6) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse7) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse7) 2147483647)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse8 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (not (<= 0 (+ .cse8 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse8) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse8) 2147483648))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse9 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (< .cse9 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse9) 2147483646) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse10) 0)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse9) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse10) 2147483647)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse12 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse11 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse11) 0)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse12) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse11) 2147483647)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse12) 2147483648)))) (not (<= 0 (+ .cse12 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse13 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse14 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse13) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse14) 0)) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse13) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse14) 2147483647))))) (not (<= 0 (+ .cse13 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse16 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n)) (.cse15 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse15) 2147483648)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse16) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse16) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse15) 0))) (not (<= 0 (+ .cse16 2147483648))) (not (< .cse15 0))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse17 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse18 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse17) 2147483646) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse18) 2147483646)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse17) 0) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse18) 0)))) (< .cse17 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse19 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (not (<= 0 (+ .cse19 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse19) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse19) 0)))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse20 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (not (<= 0 (+ .cse20 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse21 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse20) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse20) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse21) 2147483646)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse21) 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse22 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (not (<= 0 (+ .cse22 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse22) 2147483648)) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse24 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse23 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse23) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse23) 2147483647)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse24) 2147483648)))) (not (<= 0 (+ .cse24 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse25 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse25) 2147483646) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse25) 0))) (< .cse25 0) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse27 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n)) (.cse26 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse26) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse27) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse26) 0))) (not (<= 0 (+ .cse27 2147483648))) (not (< .cse26 0))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse28 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (< .cse28 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse29 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse28) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse29) 2147483646)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse29) 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse31 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n)) (.cse30 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (< .cse30 0)) (< .cse31 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse31) 2147483646) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse30) 2147483648)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse31) 0) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse30) 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse33 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse32 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse32) 2147483646)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse33) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse33) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse32) 0)))) (not (<= 0 (+ .cse33 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse34 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n)) (.cse35 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (<= 0 (+ .cse34 2147483648))) (not (< .cse35 0)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse34) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse34) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse35) 2147483648)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse35) 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse37 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#t~ret0| c_fact_~n)) (.cse36 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (< .cse36 0)) (< .cse37 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse37) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse36) 2147483648)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse36) 0))))))) is different from true [2023-02-15 14:03:20,786 WARN L859 $PredicateComparison]: unable to prove that (and (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse1 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse0 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse0) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse1) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse1) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse0) 2147483647))))) (not (<= 0 (+ .cse1 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (not (<= 0 (+ .cse2 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse2) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse2) 0)))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse3 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (< .cse3 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse4 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse4) 2147483646)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse3) 2147483647) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse4) 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse5 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse6 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse5) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse6) 0)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse6) 2147483647)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse5) 2147483646)))) (< .cse5 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (not (<= 0 (+ .cse7 2147483648))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse7) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse7) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse8 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse8) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (< .cse8 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse9 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse9) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse10) 2147483646)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse9) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse10) 0)))) (not (<= 0 (+ .cse9 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse11 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse12 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse11) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse12) 2147483646)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse12) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse11) 2147483646)))) (< .cse11 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse14 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse13 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse13) 2147483646)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse14) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse14) 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse13) 0)))) (not (<= 0 (+ .cse14 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse15 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse15) 2147483647)) (< .cse15 0) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse17 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse16 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse16) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse17) 2147483647) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse16) 2147483647))))) (< .cse17 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse19 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse18 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse18) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse19) 2147483648) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse18) 2147483647))))) (not (<= 0 (+ .cse19 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse20 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse21 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse20) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse21) 2147483647) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse20) 0))) (not (< .cse20 0)) (< .cse21 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse22 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (< .cse22 0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse22) 0) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse22) 2147483646))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse23 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse23) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse23) 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (not (<= 0 (+ .cse23 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse25 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse24 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse24) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse25) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse24) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse25) 0))) (not (< .cse25 0)) (not (<= 0 (+ .cse24 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse26 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse26) 2147483648)) (not (<= 0 (+ .cse26 2147483648))) (<= 0 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|) 2147483648))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse28 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse27 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse27) 2147483646)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse28) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse27) 0)))) (not (<= 0 (+ .cse28 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse30 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse29 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse29) 0) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse30) 2147483648)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse30) 0) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse29) 2147483646))) (not (< .cse30 0)) (< .cse29 0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse31 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse31) 2147483648) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) 2147483647)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0))) (not (<= 0 (+ .cse31 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse32 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse33 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (not (< .cse32 0)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse32) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse33) 2147483648) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse32) 0))) (not (<= 0 (+ .cse33 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse34 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (let ((.cse35 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|))) (or (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse34) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse35) 0)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse34) 2147483648) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| 0)) (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse35) 2147483647))))) (not (<= 0 (+ .cse34 2147483648)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| Int)) (let ((.cse36 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| |c_fact_#in~n|)) (.cse37 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_12| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| Int)) (or (not (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse36) 2147483648)) (<= (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse37) 2147483647) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse37) 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_13| .cse36) 0))) (not (< .cse36 0)) (not (<= 0 (+ .cse37 2147483648))))))) is different from true [2023-02-15 14:03:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:20,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694701910] [2023-02-15 14:03:20,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:03:20,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035009900] [2023-02-15 14:03:20,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035009900] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:20,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:03:20,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-02-15 14:03:20,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427270938] [2023-02-15 14:03:20,792 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:20,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 14:03:20,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:20,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 14:03:20,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=411, Unknown=3, NotChecked=126, Total=600 [2023-02-15 14:03:20,794 INFO L87 Difference]: Start difference. First operand 800 states and 1046 transitions. Second operand has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-02-15 14:03:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:21,344 INFO L93 Difference]: Finished difference Result 818 states and 1078 transitions. [2023-02-15 14:03:21,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 14:03:21,344 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 146 [2023-02-15 14:03:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:21,347 INFO L225 Difference]: With dead ends: 818 [2023-02-15 14:03:21,347 INFO L226 Difference]: Without dead ends: 817 [2023-02-15 14:03:21,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=136, Invalid=929, Unknown=3, NotChecked=192, Total=1260 [2023-02-15 14:03:21,348 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 69 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:21,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 641 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 14:03:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2023-02-15 14:03:21,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 801. [2023-02-15 14:03:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 627 states have (on average 1.226475279106858) internal successors, (769), 633 states have internal predecessors, (769), 112 states have call successors, (112), 44 states have call predecessors, (112), 52 states have return successors, (166), 123 states have call predecessors, (166), 112 states have call successors, (166) [2023-02-15 14:03:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1047 transitions. [2023-02-15 14:03:21,388 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1047 transitions. Word has length 146 [2023-02-15 14:03:21,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:21,389 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1047 transitions. [2023-02-15 14:03:21,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-02-15 14:03:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1047 transitions. [2023-02-15 14:03:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-02-15 14:03:21,389 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:21,390 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 9, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:21,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:21,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-02-15 14:03:21,595 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:03:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:21,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1540624252, now seen corresponding path program 3 times [2023-02-15 14:03:21,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:21,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592392727] [2023-02-15 14:03:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:21,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:21,602 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:03:21,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521042779] [2023-02-15 14:03:21,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:03:21,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:21,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:21,603 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:21,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-02-15 14:03:21,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-15 14:03:21,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:21,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 14:03:21,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:21,722 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 98 proven. 6 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-02-15 14:03:21,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 98 proven. 6 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-02-15 14:03:22,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:22,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592392727] [2023-02-15 14:03:22,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:03:22,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521042779] [2023-02-15 14:03:22,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521042779] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:22,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:03:22,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-02-15 14:03:22,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770681561] [2023-02-15 14:03:22,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:22,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 14:03:22,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 14:03:22,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:03:22,775 INFO L87 Difference]: Start difference. First operand 801 states and 1047 transitions. Second operand has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-02-15 14:03:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:23,898 INFO L93 Difference]: Finished difference Result 901 states and 1219 transitions. [2023-02-15 14:03:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 14:03:23,909 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 149 [2023-02-15 14:03:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:23,911 INFO L225 Difference]: With dead ends: 901 [2023-02-15 14:03:23,912 INFO L226 Difference]: Without dead ends: 900 [2023-02-15 14:03:23,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-02-15 14:03:23,912 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 54 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:23,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 300 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-15 14:03:23,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2023-02-15 14:03:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 663. [2023-02-15 14:03:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 518 states have (on average 1.1853281853281854) internal successors, (614), 522 states have internal predecessors, (614), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (144), 102 states have call predecessors, (144), 84 states have call successors, (144) [2023-02-15 14:03:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 842 transitions. [2023-02-15 14:03:23,938 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 842 transitions. Word has length 149 [2023-02-15 14:03:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:23,939 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 842 transitions. [2023-02-15 14:03:23,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 5 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2023-02-15 14:03:23,939 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 842 transitions. [2023-02-15 14:03:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-02-15 14:03:23,940 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:23,940 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 9, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:23,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:24,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-02-15 14:03:24,144 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:03:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash 615504300, now seen corresponding path program 2 times [2023-02-15 14:03:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:24,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000478864] [2023-02-15 14:03:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:24,150 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:03:24,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004962871] [2023-02-15 14:03:24,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:03:24,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:24,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:24,151 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:24,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-02-15 14:03:24,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:03:24,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:24,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 14:03:24,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-02-15 14:03:24,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 130 proven. 3 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-02-15 14:03:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:24,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000478864] [2023-02-15 14:03:24,620 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:03:24,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004962871] [2023-02-15 14:03:24,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004962871] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:24,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:03:24,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 22 [2023-02-15 14:03:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019361572] [2023-02-15 14:03:24,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:24,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 14:03:24,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 14:03:24,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:03:24,622 INFO L87 Difference]: Start difference. First operand 663 states and 842 transitions. Second operand has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 20 states have internal predecessors, (84), 11 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) [2023-02-15 14:03:24,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:24,955 INFO L93 Difference]: Finished difference Result 1256 states and 1613 transitions. [2023-02-15 14:03:24,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 14:03:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 20 states have internal predecessors, (84), 11 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) Word has length 150 [2023-02-15 14:03:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:24,978 INFO L225 Difference]: With dead ends: 1256 [2023-02-15 14:03:24,979 INFO L226 Difference]: Without dead ends: 694 [2023-02-15 14:03:24,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 277 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2023-02-15 14:03:24,982 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:24,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 527 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:03:24,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2023-02-15 14:03:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 663. [2023-02-15 14:03:25,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 518 states have (on average 1.16988416988417) internal successors, (606), 522 states have internal predecessors, (606), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (135), 102 states have call predecessors, (135), 84 states have call successors, (135) [2023-02-15 14:03:25,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 825 transitions. [2023-02-15 14:03:25,034 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 825 transitions. Word has length 150 [2023-02-15 14:03:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:25,034 INFO L495 AbstractCegarLoop]: Abstraction has 663 states and 825 transitions. [2023-02-15 14:03:25,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 20 states have internal predecessors, (84), 11 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) [2023-02-15 14:03:25,035 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 825 transitions. [2023-02-15 14:03:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-02-15 14:03:25,035 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:25,036 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 9, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:25,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-02-15 14:03:25,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-02-15 14:03:25,241 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:03:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:25,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1646404619, now seen corresponding path program 3 times [2023-02-15 14:03:25,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:25,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584580804] [2023-02-15 14:03:25,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:25,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:25,246 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:03:25,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770897290] [2023-02-15 14:03:25,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:03:25,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:25,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:25,248 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:25,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-02-15 14:03:25,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 14:03:25,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:25,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 14:03:25,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-02-15 14:03:25,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 135 proven. 13 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-02-15 14:03:25,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:25,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584580804] [2023-02-15 14:03:25,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 14:03:25,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770897290] [2023-02-15 14:03:25,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770897290] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:25,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 14:03:25,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2023-02-15 14:03:25,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601046901] [2023-02-15 14:03:25,642 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:25,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 14:03:25,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:25,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 14:03:25,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-02-15 14:03:25,643 INFO L87 Difference]: Start difference. First operand 663 states and 825 transitions. Second operand has 16 states, 16 states have (on average 4.875) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-02-15 14:03:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:25,910 INFO L93 Difference]: Finished difference Result 1150 states and 1452 transitions. [2023-02-15 14:03:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 14:03:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 155 [2023-02-15 14:03:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:25,912 INFO L225 Difference]: With dead ends: 1150 [2023-02-15 14:03:25,912 INFO L226 Difference]: Without dead ends: 672 [2023-02-15 14:03:25,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 290 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2023-02-15 14:03:25,914 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 88 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:25,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 368 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:03:25,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-02-15 14:03:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 658. [2023-02-15 14:03:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 513 states have (on average 1.1676413255360625) internal successors, (599), 518 states have internal predecessors, (599), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (134), 101 states have call predecessors, (134), 84 states have call successors, (134) [2023-02-15 14:03:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 817 transitions. [2023-02-15 14:03:25,934 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 817 transitions. Word has length 155 [2023-02-15 14:03:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:25,934 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 817 transitions. [2023-02-15 14:03:25,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.875) internal successors, (78), 14 states have internal predecessors, (78), 9 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-02-15 14:03:25,935 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 817 transitions. [2023-02-15 14:03:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-02-15 14:03:25,935 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:25,936 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 9, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:25,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-02-15 14:03:26,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-02-15 14:03:26,139 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-02-15 14:03:26,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash -178869748, now seen corresponding path program 3 times [2023-02-15 14:03:26,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:26,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192949849] [2023-02-15 14:03:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:26,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:26,145 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 14:03:26,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921663823] [2023-02-15 14:03:26,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:03:26,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:26,147 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:26,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-02-15 14:03:26,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-02-15 14:03:26,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:26,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 53 conjunts are in the unsatisfiable core [2023-02-15 14:03:26,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 198 proven. 26 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2023-02-15 14:03:26,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:31,198 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse3 (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int) (|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (or (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|)) 2147483648)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| 0)))) (.cse4 (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int) (|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse16 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse16 2147483647)) (<= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse16))))))) (.cse1 (<= |c_fact_#in~n| 2)) (.cse5 (not (<= |c_fact_#in~n| 0))) (.cse0 (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int) (|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse15 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse15 2147483647)) (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse15) 2147483648)) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse15) 0))))))) (and (or .cse0 .cse1) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse2 2147483647)) (<= (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|) (+ 2147483647 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n|))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (or (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse2) 2147483648)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| 0)))))) (or .cse3 .cse1) (or .cse4 .cse5) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse6 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse6 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (or (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse6) 2147483648)) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse6) 0)) (not (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| (- 1) |c_fact_#in~n|) (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|))) 2147483648)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse7 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (let ((.cse8 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| (- 1) |c_fact_#in~n|) (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|)))) (or (not (<= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse8)))) (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse7) 2147483648)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse8) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse7) 0)) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| 0)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse9 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse9 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (or (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse9) 2147483648)) (not (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| (- 1) |c_fact_#in~n|) (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|))) 2147483648))) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| 0)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse10 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (let ((.cse11 (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| (- 1) |c_fact_#in~n|) (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|)))) (or (not (<= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse11)))) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse11) 0) (not (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| 0)) (<= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse10))))))))) (or .cse5 .cse3) (or .cse4 .cse1) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse12 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse12 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (or (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse12) 2147483648)) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse12) 0)))) (<= (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|) (+ 2147483647 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n|)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse13 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse13 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (<= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse13)))) (<= (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|) (+ 2147483647 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n|)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| Int)) (let ((.cse14 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#res|))) (or (not (<= .cse14 2147483647)) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| Int)) (or (not (<= 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| (+ (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| (- 1) |c_fact_#in~n|) (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_14| |c_fact_#in~n| |c_fact_#in~n|))) 2147483648))) (<= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_16| .cse14)))))))) (or .cse5 .cse0))) is different from true