./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array6_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae 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/array-patterns/array6_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 00:10:35,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 00:10:35,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 00:10:35,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 00:10:35,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 00:10:35,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 00:10:35,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 00:10:35,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 00:10:35,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 00:10:35,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 00:10:35,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 00:10:35,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 00:10:35,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 00:10:35,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 00:10:35,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 00:10:35,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 00:10:35,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 00:10:35,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 00:10:35,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 00:10:35,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 00:10:35,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 00:10:35,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 00:10:35,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 00:10:35,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 00:10:35,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 00:10:35,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 00:10:35,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 00:10:35,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 00:10:35,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 00:10:35,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 00:10:35,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 00:10:35,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 00:10:35,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 00:10:35,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 00:10:35,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 00:10:35,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 00:10:35,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 00:10:35,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 00:10:35,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 00:10:35,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 00:10:35,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 00:10:35,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 00:10:35,541 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 00:10:35,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 00:10:35,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 00:10:35,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 00:10:35,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 00:10:35,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 00:10:35,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 00:10:35,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 00:10:35,544 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 00:10:35,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 00:10:35,544 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 00:10:35,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 00:10:35,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 00:10:35,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 00:10:35,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 00:10:35,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 00:10:35,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 00:10:35,545 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 00:10:35,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 00:10:35,546 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 00:10:35,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 00:10:35,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 00:10:35,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 00:10:35,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 00:10:35,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 00:10:35,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 00:10:35,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 00:10:35,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 00:10:35,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 00:10:35,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 00:10:35,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 00:10:35,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 00:10:35,548 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 00:10:35,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 00:10:35,548 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 00:10:35,549 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81db346fb66b40514998cf838e858b3f0793fe5c74d5812efa60193ab54d6833 [2023-02-16 00:10:35,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 00:10:35,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 00:10:35,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 00:10:35,764 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 00:10:35,765 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 00:10:35,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array6_pattern.c [2023-02-16 00:10:36,895 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 00:10:37,095 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 00:10:37,100 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c [2023-02-16 00:10:37,111 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f346ac8d/d66a31d759be41c880c030149780b199/FLAG98b8ff454 [2023-02-16 00:10:37,127 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f346ac8d/d66a31d759be41c880c030149780b199 [2023-02-16 00:10:37,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 00:10:37,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 00:10:37,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 00:10:37,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 00:10:37,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 00:10:37,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131399b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37, skipping insertion in model container [2023-02-16 00:10:37,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 00:10:37,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 00:10:37,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c[1356,1369] [2023-02-16 00:10:37,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 00:10:37,342 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 00:10:37,354 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array6_pattern.c[1356,1369] [2023-02-16 00:10:37,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 00:10:37,383 INFO L208 MainTranslator]: Completed translation [2023-02-16 00:10:37,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37 WrapperNode [2023-02-16 00:10:37,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 00:10:37,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 00:10:37,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 00:10:37,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 00:10:37,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,436 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-02-16 00:10:37,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 00:10:37,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 00:10:37,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 00:10:37,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 00:10:37,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 00:10:37,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 00:10:37,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 00:10:37,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 00:10:37,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (1/1) ... [2023-02-16 00:10:37,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 00:10:37,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:10:37,497 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) [2023-02-16 00:10:37,510 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 [2023-02-16 00:10:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 00:10:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-16 00:10:37,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-16 00:10:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 00:10:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-16 00:10:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-16 00:10:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 00:10:37,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 00:10:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-16 00:10:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-16 00:10:37,605 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 00:10:37,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 00:10:37,787 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 00:10:37,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 00:10:37,792 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-16 00:10:37,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:10:37 BoogieIcfgContainer [2023-02-16 00:10:37,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 00:10:37,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 00:10:37,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 00:10:37,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 00:10:37,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:10:37" (1/3) ... [2023-02-16 00:10:37,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494cb94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:10:37, skipping insertion in model container [2023-02-16 00:10:37,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:10:37" (2/3) ... [2023-02-16 00:10:37,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494cb94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:10:37, skipping insertion in model container [2023-02-16 00:10:37,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:10:37" (3/3) ... [2023-02-16 00:10:37,815 INFO L112 eAbstractionObserver]: Analyzing ICFG array6_pattern.c [2023-02-16 00:10:37,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 00:10:37,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 00:10:37,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 00:10:37,900 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;@e53eaa9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 00:10:37,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 00:10:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 00:10:37,911 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:10:37,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:10:37,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:10:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:10:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash -800294020, now seen corresponding path program 1 times [2023-02-16 00:10:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:10:37,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958612900] [2023-02-16 00:10:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:37,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:10:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 00:10:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:10:38,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:10:38,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958612900] [2023-02-16 00:10:38,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958612900] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:10:38,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:10:38,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 00:10:38,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337855134] [2023-02-16 00:10:38,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:10:38,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 00:10:38,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:10:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 00:10:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 00:10:38,163 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 00:10:38,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:10:38,186 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2023-02-16 00:10:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 00:10:38,188 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-16 00:10:38,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:10:38,197 INFO L225 Difference]: With dead ends: 47 [2023-02-16 00:10:38,197 INFO L226 Difference]: Without dead ends: 21 [2023-02-16 00:10:38,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 00:10:38,203 INFO L413 NwaCegarLoop]: 28 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, 28 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 [2023-02-16 00:10:38,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:10:38,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-16 00:10:38,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-16 00:10:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-02-16 00:10:38,236 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2023-02-16 00:10:38,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:10:38,237 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-02-16 00:10:38,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 00:10:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-02-16 00:10:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-16 00:10:38,240 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:10:38,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:10:38,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 00:10:38,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:10:38,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:10:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash -952637313, now seen corresponding path program 1 times [2023-02-16 00:10:38,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:10:38,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661273671] [2023-02-16 00:10:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:38,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:10:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 00:10:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 00:10:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:10:38,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:10:38,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661273671] [2023-02-16 00:10:38,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661273671] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:10:38,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:10:38,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 00:10:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469932479] [2023-02-16 00:10:38,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:10:38,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 00:10:38,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:10:38,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 00:10:38,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 00:10:38,557 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:10:38,579 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-02-16 00:10:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 00:10:38,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-02-16 00:10:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:10:38,581 INFO L225 Difference]: With dead ends: 26 [2023-02-16 00:10:38,581 INFO L226 Difference]: Without dead ends: 22 [2023-02-16 00:10:38,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:10:38,583 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:10:38,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:10:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-16 00:10:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-16 00:10:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-02-16 00:10:38,588 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2023-02-16 00:10:38,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:10:38,589 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-02-16 00:10:38,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,590 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-02-16 00:10:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 00:10:38,591 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:10:38,591 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, 1] [2023-02-16 00:10:38,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 00:10:38,591 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:10:38,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:10:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -603190335, now seen corresponding path program 1 times [2023-02-16 00:10:38,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:10:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789761489] [2023-02-16 00:10:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:38,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:10:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 00:10:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 00:10:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:10:38,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:10:38,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789761489] [2023-02-16 00:10:38,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789761489] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:10:38,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:10:38,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 00:10:38,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607477271] [2023-02-16 00:10:38,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:10:38,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 00:10:38,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:10:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 00:10:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:10:38,702 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:10:38,749 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-02-16 00:10:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 00:10:38,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-02-16 00:10:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:10:38,750 INFO L225 Difference]: With dead ends: 41 [2023-02-16 00:10:38,750 INFO L226 Difference]: Without dead ends: 25 [2023-02-16 00:10:38,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:10:38,752 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:10:38,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 55 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:10:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-16 00:10:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2023-02-16 00:10:38,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-16 00:10:38,758 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 24 [2023-02-16 00:10:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:10:38,758 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-16 00:10:38,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-16 00:10:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-16 00:10:38,759 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:10:38,760 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, 1, 1, 1] [2023-02-16 00:10:38,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 00:10:38,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:10:38,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:10:38,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1366149955, now seen corresponding path program 1 times [2023-02-16 00:10:38,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:10:38,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296650372] [2023-02-16 00:10:38,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:38,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:10:38,783 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:10:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859128238] [2023-02-16 00:10:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:38,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:10:38,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:10:38,787 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) [2023-02-16 00:10:38,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 00:10:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:10:38,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 00:10:38,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:10:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 00:10:39,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:10:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 00:10:39,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:10:39,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296650372] [2023-02-16 00:10:39,173 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:10:39,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859128238] [2023-02-16 00:10:39,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859128238] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:10:39,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:10:39,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-02-16 00:10:39,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357424331] [2023-02-16 00:10:39,174 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:10:39,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 00:10:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:10:39,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 00:10:39,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-02-16 00:10:39,176 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:10:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:10:39,439 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2023-02-16 00:10:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-16 00:10:39,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2023-02-16 00:10:39,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:10:39,442 INFO L225 Difference]: With dead ends: 71 [2023-02-16 00:10:39,442 INFO L226 Difference]: Without dead ends: 43 [2023-02-16 00:10:39,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2023-02-16 00:10:39,444 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 78 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:10:39,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 76 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:10:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-16 00:10:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 27. [2023-02-16 00:10:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-16 00:10:39,450 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 26 [2023-02-16 00:10:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:10:39,450 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-16 00:10:39,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:10:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-16 00:10:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-16 00:10:39,451 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:10:39,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:10:39,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 00:10:39,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:10:39,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:10:39,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:10:39,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1559224519, now seen corresponding path program 2 times [2023-02-16 00:10:39,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:10:39,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979970821] [2023-02-16 00:10:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:39,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:10:39,676 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:10:39,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243550121] [2023-02-16 00:10:39,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:10:39,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:10:39,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:10:39,678 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) [2023-02-16 00:10:39,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 00:10:39,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:10:39,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:10:39,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 00:10:39,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:10:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:10:39,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:10:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:10:39,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:10:39,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979970821] [2023-02-16 00:10:39,968 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:10:39,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243550121] [2023-02-16 00:10:39,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243550121] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:10:39,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:10:39,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-02-16 00:10:39,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693942000] [2023-02-16 00:10:39,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:10:39,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 00:10:39,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:10:39,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 00:10:39,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-02-16 00:10:39,971 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:10:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:10:40,116 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2023-02-16 00:10:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 00:10:40,117 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-02-16 00:10:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:10:40,120 INFO L225 Difference]: With dead ends: 39 [2023-02-16 00:10:40,120 INFO L226 Difference]: Without dead ends: 35 [2023-02-16 00:10:40,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2023-02-16 00:10:40,124 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 36 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:10:40,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 105 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:10:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-16 00:10:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-02-16 00:10:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:10:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-02-16 00:10:40,138 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 30 [2023-02-16 00:10:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:10:40,139 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-02-16 00:10:40,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:10:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-02-16 00:10:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-16 00:10:40,140 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:10:40,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:10:40,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-16 00:10:40,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:10:40,347 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:10:40,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:10:40,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1722352949, now seen corresponding path program 3 times [2023-02-16 00:10:40,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:10:40,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469269963] [2023-02-16 00:10:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:10:40,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:10:40,374 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:10:40,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208713152] [2023-02-16 00:10:40,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 00:10:40,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:10:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:10:40,385 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) [2023-02-16 00:10:40,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 00:10:40,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-16 00:10:40,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:10:40,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 79 conjunts are in the unsatisfiable core [2023-02-16 00:10:40,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:10:40,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-16 00:10:40,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:10:40,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-16 00:10:40,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:10:40,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-16 00:10:40,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2023-02-16 00:10:40,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2023-02-16 00:10:40,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2023-02-16 00:10:40,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2023-02-16 00:10:40,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2023-02-16 00:10:40,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,917 INFO L321 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2023-02-16 00:10:40,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 34 [2023-02-16 00:10:40,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:40,942 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2023-02-16 00:10:40,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2023-02-16 00:10:41,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,533 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:10:41,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,537 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:10:41,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,543 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:10:41,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:10:41,547 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:10:41,618 INFO L321 Elim1Store]: treesize reduction 278, result has 9.4 percent of original size [2023-02-16 00:10:41,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 147 treesize of output 143 [2023-02-16 00:10:43,539 INFO L321 Elim1Store]: treesize reduction 814, result has 35.0 percent of original size [2023-02-16 00:10:43,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 3 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 171 treesize of output 497 [2023-02-16 00:10:50,647 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:50,835 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:50,978 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:51,212 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:51,348 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:51,463 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:10:51,691 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:52,066 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:52,199 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:52,402 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:52,587 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:52,812 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:53,139 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:53,283 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:53,357 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:53,468 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:53,606 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:53,877 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:54,132 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:54,355 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:54,592 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:54,769 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:10:54,940 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:55,112 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:10:55,385 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:55,669 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:55,819 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:55,979 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:56,118 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:56,371 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:56,580 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:56,723 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:57,243 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:57,358 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:57,774 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:58,146 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:58,269 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:58,384 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:58,542 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:58,617 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:58,694 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:10:58,852 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:10:59,416 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:59,648 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:59,837 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:10:59,937 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:00,047 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:00,176 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:00,337 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:00,418 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:00,510 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:00,650 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:01,066 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:01,445 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:01,609 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:01,721 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:01,869 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:02,027 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:02,189 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:02,326 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:02,525 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:02,696 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:02,881 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:03,005 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:03,286 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:03,512 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:03,644 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:04,122 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:04,283 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:04,791 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:04,991 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:05,057 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:05,181 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:05,336 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:06,569 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:06,634 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:06,748 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:06,904 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:07,912 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:08,397 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:08,555 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:08,690 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:08,761 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:08,837 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:08,944 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:09,046 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:09,260 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:09,670 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:09,974 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:10,145 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:10,294 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:10,454 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:10,633 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:10,851 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:11,141 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:11,459 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:11,703 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:11,888 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:12,107 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:12,397 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:12,668 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:13,082 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:13,246 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:13,564 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:13,727 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:14,047 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:14,261 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:14,463 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:14,864 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:15,036 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:15,172 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:15,363 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:15,461 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:15,663 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:15,787 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:15,912 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:16,277 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:16,540 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:16,742 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:16,966 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:17,063 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:17,331 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:17,619 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:17,795 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:18,403 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:18,554 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:18,729 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:18,826 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:18,955 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:19,254 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:19,692 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:20,094 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:20,198 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:20,280 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:20,457 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:20,570 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:20,861 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:21,145 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:21,332 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:21,587 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:21,680 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:21,748 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:21,887 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:22,038 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:22,126 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:22,416 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:22,577 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:22,998 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:23,196 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:23,387 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:23,601 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:23,841 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:24,184 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:24,403 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:24,581 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:24,819 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:25,039 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:25,320 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:25,613 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:25,963 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:26,131 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:26,262 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:26,431 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:26,587 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:26,665 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:26,743 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:26,918 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:27,112 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:27,242 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:27,376 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:27,566 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:27,814 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:27,900 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:28,003 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:28,119 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:28,227 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:28,414 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:28,640 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:28,842 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:28,994 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:29,225 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:29,394 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:29,486 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:29,594 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:29,730 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:29,885 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:30,092 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:30,355 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:30,612 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:30,794 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:31,027 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:31,353 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:31,525 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:31,683 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:31,918 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:32,082 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:32,296 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:32,434 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:32,845 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:33,023 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:33,236 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:33,501 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:33,917 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:34,198 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:34,360 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:34,443 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:34,540 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:34,726 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:35,179 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:35,646 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:35,979 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:36,166 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:36,290 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:36,474 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:36,656 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:36,849 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:37,151 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:37,549 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:37,873 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:37,997 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:38,265 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:38,663 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:39,004 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:40,217 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:40,293 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:40,523 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:40,749 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:40,928 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:41,122 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:41,348 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:41,521 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:41,730 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:41,880 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:42,295 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:42,480 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:42,684 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:43,009 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:43,431 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:43,690 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:43,853 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:43,942 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:44,052 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:44,227 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:44,699 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:45,090 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:45,502 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:45,642 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:45,774 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:45,946 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:46,194 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:46,439 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:46,760 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:47,137 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:47,397 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:47,526 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:47,798 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:48,160 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:48,450 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:49,541 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:49,617 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:49,858 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:50,137 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:50,268 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:50,468 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:50,780 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:50,976 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:51,250 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:51,388 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:51,553 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:51,659 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:51,747 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:51,905 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:52,164 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:52,328 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:52,489 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:52,845 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:53,236 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:53,441 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:53,855 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:53,961 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:54,229 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:54,465 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:54,659 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:54,793 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:54,865 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:54,942 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:55,043 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:55,148 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:55,365 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:55,660 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:55,957 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:56,131 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:56,231 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:56,334 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:56,480 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:56,651 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:56,866 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:57,118 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:57,545 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:57,745 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:57,936 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:11:58,161 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:58,387 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:58,621 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:58,980 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:59,252 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:59,313 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:59,390 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:59,433 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:11:59,533 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:11:59,734 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:11:59,833 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:00,071 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:00,447 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:00,552 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:12:00,733 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:00,841 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:00,928 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:01,120 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:01,425 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:01,784 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:01,942 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:02,033 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:02,305 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:02,544 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:02,727 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:03,234 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:03,647 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:03,822 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:03,926 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:04,048 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:04,351 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:04,764 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:05,268 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:05,450 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:05,537 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:05,737 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:05,870 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:06,064 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:06,387 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:06,549 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:12:06,749 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:06,852 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:06,930 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:07,089 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:07,286 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:07,398 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:07,705 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:07,884 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:08,320 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:08,507 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:08,705 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:12:08,949 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-16 00:12:09,188 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:09,441 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:09,629 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:09,862 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:10,113 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:10,441 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:10,898 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:11,099 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:11,251 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:11,405 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:11,607 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:11,801 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:12,073 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:12,200 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:12,337 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:12,701 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:12,843 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:12,940 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:13,042 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:13,272 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:13,681 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:13,841 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:14,113 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:14,267 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:14,366 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:14,478 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:14,627 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:14,729 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:14,874 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:15,009 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:15,209 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:15,459 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:15,765 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:15,939 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:16,033 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:16,140 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:16,234 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:16,359 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:16,533 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:16,653 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:16,838 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:17,081 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:17,318 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:17,661 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:19,963 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:20,078 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 00:12:20,157 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:20,383 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-16 00:12:20,563 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-16 00:12:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:22,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:23,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:23,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469269963] [2023-02-16 00:12:23,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:23,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208713152] [2023-02-16 00:12:23,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208713152] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:12:23,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 00:12:23,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-02-16 00:12:23,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843894951] [2023-02-16 00:12:23,095 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:23,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-16 00:12:23,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:23,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-16 00:12:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2023-02-16 00:12:23,097 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:12:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:24,209 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2023-02-16 00:12:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-16 00:12:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2023-02-16 00:12:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:24,210 INFO L225 Difference]: With dead ends: 58 [2023-02-16 00:12:24,210 INFO L226 Difference]: Without dead ends: 54 [2023-02-16 00:12:24,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=237, Invalid=1403, Unknown=0, NotChecked=0, Total=1640 [2023-02-16 00:12:24,212 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 17 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:24,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 219 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-16 00:12:24,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-16 00:12:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2023-02-16 00:12:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 39 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:12:24,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2023-02-16 00:12:24,224 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 34 [2023-02-16 00:12:24,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:24,224 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2023-02-16 00:12:24,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 20 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:12:24,224 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2023-02-16 00:12:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-16 00:12:24,225 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:24,225 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:24,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:24,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:24,434 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:24,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:24,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1565541619, now seen corresponding path program 4 times [2023-02-16 00:12:24,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:24,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539355984] [2023-02-16 00:12:24,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:24,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:24,453 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:24,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300736619] [2023-02-16 00:12:24,453 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 00:12:24,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:24,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:24,465 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) [2023-02-16 00:12:24,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 00:12:24,541 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 00:12:24,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:24,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 00:12:24,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:24,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:12:24,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:24,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539355984] [2023-02-16 00:12:24,683 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:24,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300736619] [2023-02-16 00:12:24,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300736619] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:12:24,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:12:24,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-02-16 00:12:24,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417433371] [2023-02-16 00:12:24,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:24,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 00:12:24,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:24,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 00:12:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-16 00:12:24,686 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:24,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:24,817 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2023-02-16 00:12:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 00:12:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-02-16 00:12:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:24,818 INFO L225 Difference]: With dead ends: 103 [2023-02-16 00:12:24,819 INFO L226 Difference]: Without dead ends: 89 [2023-02-16 00:12:24,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-02-16 00:12:24,820 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 55 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:24,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 118 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:12:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-02-16 00:12:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2023-02-16 00:12:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.098360655737705) internal successors, (67), 61 states have internal predecessors, (67), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 00:12:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2023-02-16 00:12:24,837 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 36 [2023-02-16 00:12:24,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:24,837 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2023-02-16 00:12:24,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2023-02-16 00:12:24,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-16 00:12:24,838 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:24,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:24,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-16 00:12:25,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:25,045 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash -285980785, now seen corresponding path program 5 times [2023-02-16 00:12:25,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:25,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403872341] [2023-02-16 00:12:25,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:25,056 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:25,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171831661] [2023-02-16 00:12:25,056 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 00:12:25,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:25,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:25,058 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) [2023-02-16 00:12:25,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 00:12:25,213 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-02-16 00:12:25,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:25,216 WARN L261 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 98 conjunts are in the unsatisfiable core [2023-02-16 00:12:25,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:25,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-16 00:12:25,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:12:25,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-16 00:12:25,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:12:25,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-16 00:12:25,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2023-02-16 00:12:25,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 37 [2023-02-16 00:12:25,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 72 [2023-02-16 00:12:25,516 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-16 00:12:25,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 127 [2023-02-16 00:12:25,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-16 00:12:25,550 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-16 00:12:25,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 92 [2023-02-16 00:12:25,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 54 [2023-02-16 00:12:25,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 61 [2023-02-16 00:12:25,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 65 [2023-02-16 00:12:25,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-02-16 00:12:25,782 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2023-02-16 00:12:25,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 145 [2023-02-16 00:12:25,798 INFO L321 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2023-02-16 00:12:25,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 150 [2023-02-16 00:12:25,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 101 [2023-02-16 00:12:25,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:25,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 91 [2023-02-16 00:12:25,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-02-16 00:12:25,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 96 [2023-02-16 00:12:25,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-02-16 00:12:26,518 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:12:26,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 419 treesize of output 280 [2023-02-16 00:12:26,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2023-02-16 00:12:26,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-16 00:12:26,575 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-16 00:12:26,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 275 treesize of output 298 [2023-02-16 00:12:26,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,664 INFO L321 Elim1Store]: treesize reduction 159, result has 14.1 percent of original size [2023-02-16 00:12:26,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 222 [2023-02-16 00:12:26,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:26,732 INFO L321 Elim1Store]: treesize reduction 81, result has 24.3 percent of original size [2023-02-16 00:12:26,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 91 [2023-02-16 00:12:26,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-02-16 00:12:26,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 11 [2023-02-16 00:12:26,794 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-16 00:12:26,858 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-02-16 00:12:26,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 140 treesize of output 119 [2023-02-16 00:12:26,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2023-02-16 00:12:27,726 INFO L321 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2023-02-16 00:12:27,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 156 treesize of output 68 [2023-02-16 00:12:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:27,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:28,387 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_382 (Array Int Int)) (v_ArrVal_383 (Array Int Int))) (= (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse1 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_382) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_383) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 4)))))))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 (- 4))))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 12)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 12)) (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)))))) 0)) is different from false [2023-02-16 00:12:28,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:28,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403872341] [2023-02-16 00:12:28,695 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:28,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171831661] [2023-02-16 00:12:28,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171831661] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:12:28,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 00:12:28,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2023-02-16 00:12:28,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120051835] [2023-02-16 00:12:28,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:28,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-16 00:12:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:28,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-16 00:12:28,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1118, Unknown=2, NotChecked=68, Total=1332 [2023-02-16 00:12:28,698 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand has 26 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 23 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:12:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:30,825 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2023-02-16 00:12:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-16 00:12:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 23 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-02-16 00:12:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:30,826 INFO L225 Difference]: With dead ends: 100 [2023-02-16 00:12:30,826 INFO L226 Difference]: Without dead ends: 96 [2023-02-16 00:12:30,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=286, Invalid=2166, Unknown=2, NotChecked=96, Total=2550 [2023-02-16 00:12:30,828 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 52 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:30,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 287 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-16 00:12:30,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-02-16 00:12:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 85. [2023-02-16 00:12:30,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 72 states have (on average 1.1111111111111112) internal successors, (80), 72 states have internal predecessors, (80), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 00:12:30,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2023-02-16 00:12:30,847 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 38 [2023-02-16 00:12:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:30,847 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2023-02-16 00:12:30,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 23 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:12:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2023-02-16 00:12:30,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-16 00:12:30,848 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:30,848 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:30,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:31,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:31,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash 103605969, now seen corresponding path program 6 times [2023-02-16 00:12:31,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:31,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630247122] [2023-02-16 00:12:31,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:31,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:31,066 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:31,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730621209] [2023-02-16 00:12:31,066 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 00:12:31,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:31,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:31,068 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) [2023-02-16 00:12:31,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 00:12:31,218 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-02-16 00:12:31,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:31,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 00:12:31,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:31,322 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:31,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:12:31,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:31,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630247122] [2023-02-16 00:12:31,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:31,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730621209] [2023-02-16 00:12:31,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730621209] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:12:31,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:12:31,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-02-16 00:12:31,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224513140] [2023-02-16 00:12:31,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:31,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-16 00:12:31,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:31,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-16 00:12:31,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-02-16 00:12:31,402 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:31,630 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2023-02-16 00:12:31,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-16 00:12:31,632 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-02-16 00:12:31,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:31,632 INFO L225 Difference]: With dead ends: 143 [2023-02-16 00:12:31,632 INFO L226 Difference]: Without dead ends: 127 [2023-02-16 00:12:31,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2023-02-16 00:12:31,633 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 81 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:31,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 157 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:12:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-02-16 00:12:31,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2023-02-16 00:12:31,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.108433734939759) internal successors, (92), 83 states have internal predecessors, (92), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-16 00:12:31,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2023-02-16 00:12:31,659 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 40 [2023-02-16 00:12:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:31,659 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2023-02-16 00:12:31,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2023-02-16 00:12:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-16 00:12:31,661 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:31,661 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:31,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:31,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:31,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:31,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:31,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1011334033, now seen corresponding path program 7 times [2023-02-16 00:12:31,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:31,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733289087] [2023-02-16 00:12:31,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:31,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:31,879 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:31,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081588805] [2023-02-16 00:12:31,881 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 00:12:31,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:31,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:31,882 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) [2023-02-16 00:12:31,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 00:12:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:12:31,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 00:12:31,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:32,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:12:32,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:32,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733289087] [2023-02-16 00:12:32,188 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:32,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081588805] [2023-02-16 00:12:32,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081588805] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:12:32,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:12:32,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-02-16 00:12:32,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188602835] [2023-02-16 00:12:32,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:32,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-16 00:12:32,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-16 00:12:32,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-02-16 00:12:32,189 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:32,381 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2023-02-16 00:12:32,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-16 00:12:32,381 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-02-16 00:12:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:32,382 INFO L225 Difference]: With dead ends: 122 [2023-02-16 00:12:32,383 INFO L226 Difference]: Without dead ends: 118 [2023-02-16 00:12:32,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2023-02-16 00:12:32,384 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 65 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:32,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 155 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:12:32,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-02-16 00:12:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 91. [2023-02-16 00:12:32,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 78 states have (on average 1.1025641025641026) internal successors, (86), 78 states have internal predecessors, (86), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 00:12:32,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2023-02-16 00:12:32,407 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 40 [2023-02-16 00:12:32,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:32,408 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2023-02-16 00:12:32,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2023-02-16 00:12:32,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-16 00:12:32,409 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:32,409 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:32,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:32,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:32,615 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:32,616 INFO L85 PathProgramCache]: Analyzing trace with hash -943992564, now seen corresponding path program 1 times [2023-02-16 00:12:32,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:32,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969309759] [2023-02-16 00:12:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:32,631 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:32,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174772141] [2023-02-16 00:12:32,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:32,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:32,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:32,634 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) [2023-02-16 00:12:32,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 00:12:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:12:32,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-16 00:12:32,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:32,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-16 00:12:32,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:32,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:12:32,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-16 00:12:32,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:12:32,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-16 00:12:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:32,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 46 [2023-02-16 00:12:33,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2023-02-16 00:12:33,403 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:12:33,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 146 treesize of output 103 [2023-02-16 00:12:33,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 41 [2023-02-16 00:12:33,440 INFO L321 Elim1Store]: treesize reduction 50, result has 16.7 percent of original size [2023-02-16 00:12:33,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 97 [2023-02-16 00:12:33,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2023-02-16 00:12:33,462 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:33,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,466 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:33,466 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:33,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2023-02-16 00:12:33,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2023-02-16 00:12:33,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-02-16 00:12:33,917 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:12:33,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 349 treesize of output 230 [2023-02-16 00:12:33,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2023-02-16 00:12:33,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-16 00:12:33,958 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-16 00:12:33,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 174 treesize of output 217 [2023-02-16 00:12:33,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,981 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:33,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,983 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:33,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:33,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 124 [2023-02-16 00:12:33,999 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:34,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:34,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:34,001 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:34,002 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:34,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 47 [2023-02-16 00:12:34,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 58 [2023-02-16 00:12:34,067 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:34,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:34,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 42 [2023-02-16 00:12:34,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:34,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:34,579 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:34,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:34,580 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:34,596 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-02-16 00:12:34,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 106 treesize of output 42 [2023-02-16 00:12:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:34,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:34,898 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_652 (Array Int Int)) (v_ArrVal_654 (Array Int Int))) (= 0 (let ((.cse3 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse0 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_652) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_654) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse4 (+ .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 4)))))))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 (- 4))))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse0) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|)))))) is different from false [2023-02-16 00:12:34,949 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_652 (Array Int Int)) (|ULTIMATE.start_main_~index~0#1| Int) (v_ArrVal_654 (Array Int Int))) (or (= 0 (let ((.cse3 (* |ULTIMATE.start_main_~index~0#1| 4))) (let ((.cse0 (store (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_652) |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| v_ArrVal_654) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (+ (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3 4)) (select .cse4 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse3 (- 4)))))))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (store .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3) (+ (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 (- 4))) (select .cse2 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse3 4)))))) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse0) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (select .cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (select .cse0 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8))))))) (not (< 0 |ULTIMATE.start_main_~index~0#1|)) (not (< (+ |ULTIMATE.start_main_~index~0#1| 1) c_~ARR_SIZE~0)))) is different from false [2023-02-16 00:12:34,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:34,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969309759] [2023-02-16 00:12:34,951 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:34,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174772141] [2023-02-16 00:12:34,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174772141] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:12:34,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 00:12:34,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2023-02-16 00:12:34,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692917107] [2023-02-16 00:12:34,952 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:34,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-16 00:12:34,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-16 00:12:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1060, Unknown=2, NotChecked=134, Total=1332 [2023-02-16 00:12:34,953 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 23 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:12:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:36,371 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2023-02-16 00:12:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-16 00:12:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 23 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2023-02-16 00:12:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:36,372 INFO L225 Difference]: With dead ends: 97 [2023-02-16 00:12:36,372 INFO L226 Difference]: Without dead ends: 69 [2023-02-16 00:12:36,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=298, Invalid=2158, Unknown=2, NotChecked=194, Total=2652 [2023-02-16 00:12:36,374 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 58 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:36,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 248 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 00:12:36,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-02-16 00:12:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-02-16 00:12:36,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.1) internal successors, (66), 60 states have internal predecessors, (66), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 00:12:36,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2023-02-16 00:12:36,389 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 42 [2023-02-16 00:12:36,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:36,389 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2023-02-16 00:12:36,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 23 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:12:36,390 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2023-02-16 00:12:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-16 00:12:36,390 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:36,390 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:36,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:36,596 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,SelfDestructingSolverStorable10 [2023-02-16 00:12:36,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1282630227, now seen corresponding path program 8 times [2023-02-16 00:12:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:36,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060579165] [2023-02-16 00:12:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:36,606 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:36,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591321516] [2023-02-16 00:12:36,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:12:36,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:36,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:36,612 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) [2023-02-16 00:12:36,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 00:12:36,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:12:36,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:36,864 WARN L261 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 124 conjunts are in the unsatisfiable core [2023-02-16 00:12:36,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:36,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-16 00:12:36,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:36,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:12:36,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:12:36,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2023-02-16 00:12:36,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:36,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:36,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:36,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 48 [2023-02-16 00:12:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,090 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,091 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,098 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2023-02-16 00:12:37,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 74 [2023-02-16 00:12:37,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,262 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,264 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,265 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,280 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2023-02-16 00:12:37,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 117 treesize of output 115 [2023-02-16 00:12:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,448 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,450 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,452 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:37,453 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:37,463 INFO L321 Elim1Store]: treesize reduction 55, result has 16.7 percent of original size [2023-02-16 00:12:37,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 116 treesize of output 123 [2023-02-16 00:12:38,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,077 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:12:38,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 237 treesize of output 176 [2023-02-16 00:12:38,103 INFO L321 Elim1Store]: treesize reduction 88, result has 5.4 percent of original size [2023-02-16 00:12:38,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 153 [2023-02-16 00:12:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,185 INFO L321 Elim1Store]: treesize reduction 109, result has 31.9 percent of original size [2023-02-16 00:12:38,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 98 treesize of output 141 [2023-02-16 00:12:38,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-02-16 00:12:38,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:38,262 INFO L321 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2023-02-16 00:12:38,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 114 [2023-02-16 00:12:38,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 17 [2023-02-16 00:12:38,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-02-16 00:12:39,762 INFO L321 Elim1Store]: treesize reduction 37, result has 9.8 percent of original size [2023-02-16 00:12:39,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 10 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 236 treesize of output 100 [2023-02-16 00:12:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:39,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:42,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:42,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060579165] [2023-02-16 00:12:42,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:42,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591321516] [2023-02-16 00:12:42,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591321516] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:12:42,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 00:12:42,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2023-02-16 00:12:42,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535162520] [2023-02-16 00:12:42,248 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:42,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-16 00:12:42,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:42,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-16 00:12:42,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1527, Unknown=22, NotChecked=0, Total=1722 [2023-02-16 00:12:42,250 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:12:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:44,526 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2023-02-16 00:12:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-16 00:12:44,527 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2023-02-16 00:12:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:44,528 INFO L225 Difference]: With dead ends: 98 [2023-02-16 00:12:44,528 INFO L226 Difference]: Without dead ends: 94 [2023-02-16 00:12:44,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 14 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 898 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=336, Invalid=2831, Unknown=25, NotChecked=0, Total=3192 [2023-02-16 00:12:44,529 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 57 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:44,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 222 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-16 00:12:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-16 00:12:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 82. [2023-02-16 00:12:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 71 states have internal predecessors, (79), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 00:12:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2023-02-16 00:12:44,552 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 42 [2023-02-16 00:12:44,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:44,552 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2023-02-16 00:12:44,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 26 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:12:44,552 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2023-02-16 00:12:44,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-16 00:12:44,552 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:44,553 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:44,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:44,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:44,757 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:44,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:44,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1773046770, now seen corresponding path program 2 times [2023-02-16 00:12:44,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:44,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742764944] [2023-02-16 00:12:44,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:44,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:44,773 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:44,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340484046] [2023-02-16 00:12:44,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:12:44,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:44,775 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) [2023-02-16 00:12:44,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 00:12:44,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:12:44,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:44,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 00:12:44,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-16 00:12:44,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-16 00:12:45,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:45,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742764944] [2023-02-16 00:12:45,055 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:45,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340484046] [2023-02-16 00:12:45,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340484046] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:12:45,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:12:45,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-02-16 00:12:45,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256389577] [2023-02-16 00:12:45,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:45,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-16 00:12:45,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:45,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-16 00:12:45,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-16 00:12:45,057 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:45,246 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2023-02-16 00:12:45,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-16 00:12:45,246 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-02-16 00:12:45,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:45,247 INFO L225 Difference]: With dead ends: 94 [2023-02-16 00:12:45,247 INFO L226 Difference]: Without dead ends: 90 [2023-02-16 00:12:45,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2023-02-16 00:12:45,248 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 46 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:45,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 120 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:12:45,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-16 00:12:45,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2023-02-16 00:12:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 71 states have (on average 1.0985915492957747) internal successors, (78), 71 states have internal predecessors, (78), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 00:12:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2023-02-16 00:12:45,274 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 44 [2023-02-16 00:12:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:45,274 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2023-02-16 00:12:45,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2023-02-16 00:12:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-16 00:12:45,275 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:45,275 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:45,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:45,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-16 00:12:45,481 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:45,481 INFO L85 PathProgramCache]: Analyzing trace with hash 5267605, now seen corresponding path program 9 times [2023-02-16 00:12:45,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:45,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634601076] [2023-02-16 00:12:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:45,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:45,496 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:45,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965950135] [2023-02-16 00:12:45,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 00:12:45,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:45,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:45,499 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) [2023-02-16 00:12:45,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 00:12:45,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-02-16 00:12:45,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:45,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-16 00:12:45,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:45,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:12:45,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:45,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634601076] [2023-02-16 00:12:45,969 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:45,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965950135] [2023-02-16 00:12:45,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965950135] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:12:45,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:12:45,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2023-02-16 00:12:45,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160995953] [2023-02-16 00:12:45,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:45,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-16 00:12:45,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:45,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-16 00:12:45,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-02-16 00:12:45,971 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:46,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:46,263 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2023-02-16 00:12:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-16 00:12:46,263 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-02-16 00:12:46,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:46,264 INFO L225 Difference]: With dead ends: 133 [2023-02-16 00:12:46,264 INFO L226 Difference]: Without dead ends: 115 [2023-02-16 00:12:46,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 60 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-02-16 00:12:46,266 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 124 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:46,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 143 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:12:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-02-16 00:12:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 90. [2023-02-16 00:12:46,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.0909090909090908) internal successors, (84), 77 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 00:12:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2023-02-16 00:12:46,297 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 44 [2023-02-16 00:12:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:46,297 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2023-02-16 00:12:46,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2023-02-16 00:12:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-16 00:12:46,298 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:46,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:46,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-16 00:12:46,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-16 00:12:46,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:46,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 453576021, now seen corresponding path program 10 times [2023-02-16 00:12:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:46,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590382381] [2023-02-16 00:12:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:46,516 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:46,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193037145] [2023-02-16 00:12:46,517 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 00:12:46,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:46,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:46,518 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) [2023-02-16 00:12:46,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 00:12:46,682 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 00:12:46,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:46,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-16 00:12:46,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 29 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:12:46,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:12:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:12:46,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:12:46,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590382381] [2023-02-16 00:12:46,912 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:12:46,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193037145] [2023-02-16 00:12:46,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193037145] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:12:46,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:12:46,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2023-02-16 00:12:46,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739981665] [2023-02-16 00:12:46,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:12:46,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-16 00:12:46,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:12:46,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-16 00:12:46,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-02-16 00:12:46,914 INFO L87 Difference]: Start difference. First operand 90 states and 96 transitions. Second operand has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:47,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:12:47,168 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2023-02-16 00:12:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-16 00:12:47,168 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-02-16 00:12:47,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:12:47,169 INFO L225 Difference]: With dead ends: 114 [2023-02-16 00:12:47,169 INFO L226 Difference]: Without dead ends: 110 [2023-02-16 00:12:47,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 60 SyntacticMatches, 7 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2023-02-16 00:12:47,171 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 59 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:12:47,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 165 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:12:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-02-16 00:12:47,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 92. [2023-02-16 00:12:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 79 states have internal predecessors, (86), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 00:12:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2023-02-16 00:12:47,193 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 44 [2023-02-16 00:12:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:12:47,193 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2023-02-16 00:12:47,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 21 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:12:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2023-02-16 00:12:47,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 00:12:47,194 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:12:47,194 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:12:47,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-16 00:12:47,397 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,SelfDestructingSolverStorable14 [2023-02-16 00:12:47,397 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:12:47,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:12:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1257303952, now seen corresponding path program 3 times [2023-02-16 00:12:47,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:12:47,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390217398] [2023-02-16 00:12:47,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:12:47,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:12:47,411 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:12:47,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871308884] [2023-02-16 00:12:47,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 00:12:47,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:12:47,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:12:47,413 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) [2023-02-16 00:12:47,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-16 00:12:47,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-02-16 00:12:47,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:12:47,808 WARN L261 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 117 conjunts are in the unsatisfiable core [2023-02-16 00:12:47,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:12:47,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-16 00:12:47,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:47,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:12:47,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-16 00:12:47,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-16 00:12:47,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:12:47,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:47,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2023-02-16 00:12:47,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:47,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-02-16 00:12:47,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:47,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:47,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2023-02-16 00:12:48,010 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-16 00:12:48,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 87 [2023-02-16 00:12:48,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-16 00:12:48,032 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-16 00:12:48,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 74 [2023-02-16 00:12:48,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2023-02-16 00:12:48,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-02-16 00:12:48,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-02-16 00:12:48,217 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2023-02-16 00:12:48,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 145 [2023-02-16 00:12:48,235 INFO L321 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2023-02-16 00:12:48,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 150 [2023-02-16 00:12:48,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 101 [2023-02-16 00:12:48,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:48,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 91 [2023-02-16 00:12:48,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-02-16 00:12:48,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-02-16 00:12:48,923 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:12:48,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 419 treesize of output 280 [2023-02-16 00:12:48,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2023-02-16 00:12:48,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-16 00:12:48,995 INFO L321 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2023-02-16 00:12:48,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 275 treesize of output 302 [2023-02-16 00:12:49,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,098 INFO L321 Elim1Store]: treesize reduction 81, result has 24.3 percent of original size [2023-02-16 00:12:49,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 125 [2023-02-16 00:12:49,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,202 INFO L321 Elim1Store]: treesize reduction 164, result has 11.4 percent of original size [2023-02-16 00:12:49,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 193 treesize of output 239 [2023-02-16 00:12:49,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 118 [2023-02-16 00:12:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:49,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 88 [2023-02-16 00:12:49,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 73 [2023-02-16 00:12:50,659 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:12:50,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 489 treesize of output 340 [2023-02-16 00:12:50,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2023-02-16 00:12:50,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-16 00:12:50,706 INFO L321 Elim1Store]: treesize reduction 116, result has 4.1 percent of original size [2023-02-16 00:12:50,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 326 treesize of output 351 [2023-02-16 00:12:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,054 INFO L321 Elim1Store]: treesize reduction 521, result has 22.8 percent of original size [2023-02-16 00:12:51,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 224 treesize of output 396 [2023-02-16 00:12:51,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:51,410 INFO L321 Elim1Store]: treesize reduction 295, result has 33.6 percent of original size [2023-02-16 00:12:51,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 128 treesize of output 255 [2023-02-16 00:12:54,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 183 [2023-02-16 00:12:54,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 47 [2023-02-16 00:12:54,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 35 [2023-02-16 00:12:56,648 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:12:56,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 373 treesize of output 297 [2023-02-16 00:12:56,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:56,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:56,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:56,663 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:57,132 INFO L321 Elim1Store]: treesize reduction 42, result has 90.2 percent of original size [2023-02-16 00:12:57,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 363 treesize of output 679 [2023-02-16 00:12:57,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:57,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:57,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:12:57,164 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:12:57,679 INFO L321 Elim1Store]: treesize reduction 42, result has 90.2 percent of original size [2023-02-16 00:12:57,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 434 treesize of output 714 [2023-02-16 00:13:45,027 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:13:45,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:13:47,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:13:47,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390217398] [2023-02-16 00:13:47,574 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:13:47,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871308884] [2023-02-16 00:13:47,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871308884] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:13:47,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 00:13:47,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2023-02-16 00:13:47,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479272353] [2023-02-16 00:13:47,574 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 00:13:47,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-16 00:13:47,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:13:47,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-16 00:13:47,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1533, Unknown=3, NotChecked=0, Total=1806 [2023-02-16 00:13:47,576 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:13:49,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:13:49,956 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2023-02-16 00:13:49,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-16 00:13:49,956 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 46 [2023-02-16 00:13:49,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:13:49,957 INFO L225 Difference]: With dead ends: 118 [2023-02-16 00:13:49,957 INFO L226 Difference]: Without dead ends: 104 [2023-02-16 00:13:49,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=410, Invalid=2239, Unknown=3, NotChecked=0, Total=2652 [2023-02-16 00:13:49,958 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-16 00:13:49,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 321 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-16 00:13:49,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-02-16 00:13:49,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2023-02-16 00:13:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 85 states have internal predecessors, (92), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-16 00:13:49,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2023-02-16 00:13:49,988 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 46 [2023-02-16 00:13:49,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:13:49,988 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2023-02-16 00:13:49,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-16 00:13:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2023-02-16 00:13:49,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 00:13:49,989 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:13:49,989 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:13:49,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-16 00:13:50,189 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,SelfDestructingSolverStorable15 [2023-02-16 00:13:50,190 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:13:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:13:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2146874601, now seen corresponding path program 11 times [2023-02-16 00:13:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:13:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318586066] [2023-02-16 00:13:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:13:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:13:50,202 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:13:50,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728965273] [2023-02-16 00:13:50,202 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 00:13:50,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:13:50,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:13:50,203 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) [2023-02-16 00:13:50,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-16 00:13:50,736 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-02-16 00:13:50,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:13:50,739 WARN L261 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 135 conjunts are in the unsatisfiable core [2023-02-16 00:13:50,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:13:50,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2023-02-16 00:13:50,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:50,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:13:50,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:13:50,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2023-02-16 00:13:50,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:50,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2023-02-16 00:13:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:50,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-02-16 00:13:50,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:50,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:50,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2023-02-16 00:13:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,024 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,025 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,034 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2023-02-16 00:13:51,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 97 treesize of output 89 [2023-02-16 00:13:51,154 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-16 00:13:51,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 107 [2023-02-16 00:13:51,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-16 00:13:51,183 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-16 00:13:51,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 83 [2023-02-16 00:13:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 50 [2023-02-16 00:13:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 55 [2023-02-16 00:13:51,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-02-16 00:13:51,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,390 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,394 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,395 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,397 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,414 INFO L321 Elim1Store]: treesize reduction 55, result has 20.3 percent of original size [2023-02-16 00:13:51,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 141 treesize of output 145 [2023-02-16 00:13:51,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,666 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,668 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,675 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:51,676 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:51,688 INFO L321 Elim1Store]: treesize reduction 63, result has 14.9 percent of original size [2023-02-16 00:13:51,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 16 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 152 treesize of output 165 [2023-02-16 00:13:52,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,390 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,393 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,403 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,406 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,419 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,423 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,428 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:13:52,430 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:13:52,791 INFO L321 Elim1Store]: treesize reduction 1003, result has 16.1 percent of original size [2023-02-16 00:13:52,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 24 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 129 case distinctions, treesize of input 214 treesize of output 332 [2023-02-16 00:13:55,890 INFO L321 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2023-02-16 00:13:55,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 356 treesize of output 156 [2023-02-16 00:13:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:13:55,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:13:59,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:13:59,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318586066] [2023-02-16 00:13:59,490 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:13:59,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728965273] [2023-02-16 00:13:59,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728965273] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:13:59,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 00:13:59,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2023-02-16 00:13:59,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728690380] [2023-02-16 00:13:59,490 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 00:13:59,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-16 00:13:59,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:13:59,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-16 00:13:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1958, Unknown=1, NotChecked=0, Total=2162 [2023-02-16 00:13:59,492 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand has 32 states, 32 states have (on average 1.3125) internal successors, (42), 29 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:14:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:14:03,053 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2023-02-16 00:14:03,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-16 00:14:03,054 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.3125) internal successors, (42), 29 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2023-02-16 00:14:03,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:14:03,055 INFO L225 Difference]: With dead ends: 132 [2023-02-16 00:14:03,055 INFO L226 Difference]: Without dead ends: 128 [2023-02-16 00:14:03,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=388, Invalid=3517, Unknown=1, NotChecked=0, Total=3906 [2023-02-16 00:14:03,057 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 65 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-02-16 00:14:03,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 242 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-02-16 00:14:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-02-16 00:14:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 113. [2023-02-16 00:14:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 96 states have (on average 1.09375) internal successors, (105), 96 states have internal predecessors, (105), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-16 00:14:03,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2023-02-16 00:14:03,090 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 46 [2023-02-16 00:14:03,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:14:03,090 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2023-02-16 00:14:03,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.3125) internal successors, (42), 29 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 00:14:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2023-02-16 00:14:03,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-16 00:14:03,091 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:14:03,091 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:14:03,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-16 00:14:03,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:14:03,292 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:14:03,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:14:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1508956071, now seen corresponding path program 12 times [2023-02-16 00:14:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:14:03,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392187553] [2023-02-16 00:14:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:14:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:14:03,303 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:14:03,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628532104] [2023-02-16 00:14:03,304 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 00:14:03,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:14:03,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:14:03,305 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) [2023-02-16 00:14:03,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-16 00:14:03,632 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-02-16 00:14:03,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:14:03,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-16 00:14:03,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:14:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 53 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:14:03,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:14:03,922 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:14:03,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:14:03,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392187553] [2023-02-16 00:14:03,922 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:14:03,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628532104] [2023-02-16 00:14:03,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628532104] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:14:03,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:14:03,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2023-02-16 00:14:03,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643900233] [2023-02-16 00:14:03,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:14:03,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 00:14:03,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:14:03,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 00:14:03,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-02-16 00:14:03,924 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:14:04,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:14:04,391 INFO L93 Difference]: Finished difference Result 181 states and 188 transitions. [2023-02-16 00:14:04,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-02-16 00:14:04,391 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-02-16 00:14:04,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:14:04,392 INFO L225 Difference]: With dead ends: 181 [2023-02-16 00:14:04,392 INFO L226 Difference]: Without dead ends: 161 [2023-02-16 00:14:04,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=482, Invalid=1498, Unknown=0, NotChecked=0, Total=1980 [2023-02-16 00:14:04,394 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 119 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 00:14:04,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 207 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 00:14:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-16 00:14:04,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 121. [2023-02-16 00:14:04,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.088235294117647) internal successors, (111), 102 states have internal predecessors, (111), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-16 00:14:04,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2023-02-16 00:14:04,432 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 48 [2023-02-16 00:14:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:14:04,432 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2023-02-16 00:14:04,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:14:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2023-02-16 00:14:04,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-16 00:14:04,433 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:14:04,433 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:14:04,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-16 00:14:04,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-16 00:14:04,637 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:14:04,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:14:04,637 INFO L85 PathProgramCache]: Analyzing trace with hash -181297895, now seen corresponding path program 13 times [2023-02-16 00:14:04,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:14:04,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797196965] [2023-02-16 00:14:04,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:14:04,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:14:04,647 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:14:04,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1247833028] [2023-02-16 00:14:04,647 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 00:14:04,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:14:04,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:14:04,648 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) [2023-02-16 00:14:04,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-16 00:14:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:14:04,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-16 00:14:04,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:14:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:14:04,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:14:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 00:14:05,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:14:05,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797196965] [2023-02-16 00:14:05,041 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 00:14:05,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247833028] [2023-02-16 00:14:05,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247833028] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:14:05,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 00:14:05,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 24 [2023-02-16 00:14:05,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291652079] [2023-02-16 00:14:05,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 00:14:05,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 00:14:05,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:14:05,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 00:14:05,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-02-16 00:14:05,043 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:14:05,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:14:05,351 INFO L93 Difference]: Finished difference Result 160 states and 165 transitions. [2023-02-16 00:14:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-16 00:14:05,351 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-02-16 00:14:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:14:05,352 INFO L225 Difference]: With dead ends: 160 [2023-02-16 00:14:05,352 INFO L226 Difference]: Without dead ends: 156 [2023-02-16 00:14:05,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 64 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=359, Invalid=1123, Unknown=0, NotChecked=0, Total=1482 [2023-02-16 00:14:05,353 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 98 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:14:05,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 168 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:14:05,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-02-16 00:14:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 123. [2023-02-16 00:14:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 104 states have internal predecessors, (113), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-16 00:14:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 131 transitions. [2023-02-16 00:14:05,398 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 131 transitions. Word has length 48 [2023-02-16 00:14:05,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:14:05,399 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 131 transitions. [2023-02-16 00:14:05,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-16 00:14:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 131 transitions. [2023-02-16 00:14:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-16 00:14:05,400 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:14:05,400 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:14:05,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-16 00:14:05,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:14:05,607 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:14:05,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:14:05,607 INFO L85 PathProgramCache]: Analyzing trace with hash 570125332, now seen corresponding path program 4 times [2023-02-16 00:14:05,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:14:05,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108220778] [2023-02-16 00:14:05,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:14:05,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:14:05,617 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 00:14:05,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036292611] [2023-02-16 00:14:05,617 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 00:14:05,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:14:05,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:14:05,619 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) [2023-02-16 00:14:05,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-16 00:14:06,043 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 00:14:06,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:14:06,046 WARN L261 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 142 conjunts are in the unsatisfiable core [2023-02-16 00:14:06,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:14:06,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-16 00:14:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-16 00:14:06,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-16 00:14:06,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2023-02-16 00:14:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 69 [2023-02-16 00:14:06,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,321 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,322 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,330 INFO L321 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2023-02-16 00:14:06,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 82 treesize of output 74 [2023-02-16 00:14:06,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,448 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,451 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,453 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,466 INFO L321 Elim1Store]: treesize reduction 47, result has 23.0 percent of original size [2023-02-16 00:14:06,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 117 treesize of output 115 [2023-02-16 00:14:06,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,708 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,711 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,715 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:06,717 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:14:06,731 INFO L321 Elim1Store]: treesize reduction 55, result has 20.3 percent of original size [2023-02-16 00:14:06,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 272 treesize of output 162 [2023-02-16 00:14:07,418 INFO L321 Elim1Store]: treesize reduction 46, result has 9.8 percent of original size [2023-02-16 00:14:07,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 381 treesize of output 254 [2023-02-16 00:14:07,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130 [2023-02-16 00:14:07,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2023-02-16 00:14:07,489 INFO L321 Elim1Store]: treesize reduction 111, result has 8.3 percent of original size [2023-02-16 00:14:07,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 207 treesize of output 248 [2023-02-16 00:14:07,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,602 INFO L321 Elim1Store]: treesize reduction 231, result has 16.6 percent of original size [2023-02-16 00:14:07,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 117 treesize of output 216 [2023-02-16 00:14:07,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:07,681 INFO L321 Elim1Store]: treesize reduction 114, result has 28.7 percent of original size [2023-02-16 00:14:07,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 62 treesize of output 114 [2023-02-16 00:14:09,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 392 treesize of output 313 [2023-02-16 00:14:09,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 346 treesize of output 310 [2023-02-16 00:14:09,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,874 INFO L321 Elim1Store]: treesize reduction 109, result has 31.9 percent of original size [2023-02-16 00:14:09,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 265 treesize of output 264 [2023-02-16 00:14:09,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:09,971 INFO L321 Elim1Store]: treesize reduction 109, result has 31.9 percent of original size [2023-02-16 00:14:09,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 243 treesize of output 258 [2023-02-16 00:14:09,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 146 [2023-02-16 00:14:19,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:19,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:19,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:14:19,966 INFO L173 IndexEqualityManager]: detected equality via solver