./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-properties/splice-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-properties/splice-2.i -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 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 10:32:22,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:32:22,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:32:22,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:32:22,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:32:22,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:32:22,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:32:22,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:32:22,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:32:22,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:32:22,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:32:22,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:32:22,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:32:22,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:32:22,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:32:22,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:32:22,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:32:22,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:32:22,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:32:22,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:32:22,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:32:22,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:32:22,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:32:22,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:32:22,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:32:22,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:32:22,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:32:22,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:32:22,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:32:22,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:32:22,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:32:22,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:32:22,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:32:22,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:32:22,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:32:22,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:32:22,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:32:22,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:32:22,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:32:22,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:32:22,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:32:22,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 10:32:22,712 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:32:22,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:32:22,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:32:22,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:32:22,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:32:22,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:32:22,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:32:22,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:32:22,717 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:32:22,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:32:22,718 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:32:22,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:32:22,719 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:32:22,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:32:22,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:32:22,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:32:22,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:32:22,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:32:22,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:32:22,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:32:22,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:32:22,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 10:32:22,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 10:32:22,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:32:22,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:32:22,721 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:32:22,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:32:22,722 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:32:22,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098fc4cb5d15cb305e8d98bf2e1c69b111d102681b51dec68ae720515d6f30bc [2023-02-15 10:32:22,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:32:22,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:32:22,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:32:22,912 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:32:22,925 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:32:22,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/splice-2.i [2023-02-15 10:32:24,006 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:32:24,191 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:32:24,191 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/splice-2.i [2023-02-15 10:32:24,198 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9728cc987/17ef022cb2dd4173bff4b4d446e2d1cf/FLAGb3418bee4 [2023-02-15 10:32:24,207 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9728cc987/17ef022cb2dd4173bff4b4d446e2d1cf [2023-02-15 10:32:24,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:32:24,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:32:24,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:32:24,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:32:24,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:32:24,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7880a917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24, skipping insertion in model container [2023-02-15 10:32:24,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:32:24,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:32:24,438 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/list-properties/splice-2.i[23721,23734] [2023-02-15 10:32:24,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:32:24,452 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:32:24,485 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/list-properties/splice-2.i[23721,23734] [2023-02-15 10:32:24,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:32:24,501 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:32:24,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24 WrapperNode [2023-02-15 10:32:24,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:32:24,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:32:24,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:32:24,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:32:24,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,525 INFO L138 Inliner]: procedures = 124, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 104 [2023-02-15 10:32:24,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:32:24,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:32:24,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:32:24,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:32:24,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:32:24,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:32:24,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:32:24,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:32:24,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (1/1) ... [2023-02-15 10:32:24,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:32:24,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:24,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 10:32:24,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 10:32:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-02-15 10:32:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-02-15 10:32:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 10:32:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 10:32:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 10:32:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:32:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 10:32:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 10:32:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 10:32:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:32:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:32:24,729 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:32:24,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:32:24,776 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-02-15 10:32:24,889 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:32:24,899 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:32:24,899 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-15 10:32:24,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:32:24 BoogieIcfgContainer [2023-02-15 10:32:24,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:32:24,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:32:24,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:32:24,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:32:24,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:32:24" (1/3) ... [2023-02-15 10:32:24,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ded1ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:32:24, skipping insertion in model container [2023-02-15 10:32:24,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:24" (2/3) ... [2023-02-15 10:32:24,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ded1ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:32:24, skipping insertion in model container [2023-02-15 10:32:24,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:32:24" (3/3) ... [2023-02-15 10:32:24,908 INFO L112 eAbstractionObserver]: Analyzing ICFG splice-2.i [2023-02-15 10:32:24,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:32:24,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:32:24,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:32:24,970 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;@72ef5168, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:32:24,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:32:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 10:32:24,981 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:24,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:24,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:24,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:24,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1192551972, now seen corresponding path program 1 times [2023-02-15 10:32:24,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:24,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104212493] [2023-02-15 10:32:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:25,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:25,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104212493] [2023-02-15 10:32:25,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104212493] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:25,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:25,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 10:32:25,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029627391] [2023-02-15 10:32:25,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:25,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 10:32:25,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 10:32:25,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 10:32:25,172 INFO L87 Difference]: Start difference. First operand has 31 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 29 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:25,188 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2023-02-15 10:32:25,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 10:32:25,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 10:32:25,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:25,203 INFO L225 Difference]: With dead ends: 48 [2023-02-15 10:32:25,203 INFO L226 Difference]: Without dead ends: 23 [2023-02-15 10:32:25,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 10:32:25,207 INFO L413 NwaCegarLoop]: 40 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, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:25,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:25,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-15 10:32:25,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-15 10:32:25,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-02-15 10:32:25,236 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2023-02-15 10:32:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:25,236 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-02-15 10:32:25,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-02-15 10:32:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 10:32:25,237 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:25,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:25,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 10:32:25,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:25,238 INFO L85 PathProgramCache]: Analyzing trace with hash 675462707, now seen corresponding path program 1 times [2023-02-15 10:32:25,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:25,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178974729] [2023-02-15 10:32:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:25,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:25,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:25,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178974729] [2023-02-15 10:32:25,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178974729] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:25,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:25,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 10:32:25,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743424664] [2023-02-15 10:32:25,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:25,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 10:32:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 10:32:25,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:32:25,434 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:25,487 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2023-02-15 10:32:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 10:32:25,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 10:32:25,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:25,488 INFO L225 Difference]: With dead ends: 40 [2023-02-15 10:32:25,488 INFO L226 Difference]: Without dead ends: 33 [2023-02-15 10:32:25,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 10:32:25,492 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 10 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:25,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 62 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:25,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-15 10:32:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2023-02-15 10:32:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-02-15 10:32:25,502 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 14 [2023-02-15 10:32:25,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:25,502 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-02-15 10:32:25,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-02-15 10:32:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 10:32:25,504 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:25,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:25,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 10:32:25,507 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:25,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:25,511 INFO L85 PathProgramCache]: Analyzing trace with hash 577924040, now seen corresponding path program 1 times [2023-02-15 10:32:25,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:25,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455944098] [2023-02-15 10:32:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:25,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:25,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:25,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455944098] [2023-02-15 10:32:25,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455944098] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:25,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:25,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 10:32:25,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543360356] [2023-02-15 10:32:25,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:25,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 10:32:25,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 10:32:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:32:25,595 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:25,645 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-02-15 10:32:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 10:32:25,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-15 10:32:25,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:25,647 INFO L225 Difference]: With dead ends: 47 [2023-02-15 10:32:25,648 INFO L226 Difference]: Without dead ends: 39 [2023-02-15 10:32:25,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 10:32:25,650 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:25,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 63 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:25,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-15 10:32:25,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2023-02-15 10:32:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 36 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2023-02-15 10:32:25,660 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 16 [2023-02-15 10:32:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:25,660 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2023-02-15 10:32:25,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-02-15 10:32:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 10:32:25,661 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:25,662 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:25,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 10:32:25,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1645466066, now seen corresponding path program 1 times [2023-02-15 10:32:25,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:25,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690935282] [2023-02-15 10:32:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:25,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:25,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:25,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690935282] [2023-02-15 10:32:25,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690935282] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:25,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:25,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 10:32:25,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959735039] [2023-02-15 10:32:25,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:25,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 10:32:25,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:25,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 10:32:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 10:32:25,850 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:25,946 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2023-02-15 10:32:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 10:32:25,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 10:32:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:25,947 INFO L225 Difference]: With dead ends: 70 [2023-02-15 10:32:25,947 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 10:32:25,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-02-15 10:32:25,948 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:25,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 78 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 10:32:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2023-02-15 10:32:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2023-02-15 10:32:25,953 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 17 [2023-02-15 10:32:25,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:25,953 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2023-02-15 10:32:25,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:25,954 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2023-02-15 10:32:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-15 10:32:25,954 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:25,954 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:25,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 10:32:25,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:25,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:25,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1334445095, now seen corresponding path program 1 times [2023-02-15 10:32:25,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:25,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207646047] [2023-02-15 10:32:25,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:25,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:26,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:26,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:26,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207646047] [2023-02-15 10:32:26,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207646047] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:26,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107309012] [2023-02-15 10:32:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:26,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:26,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:26,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:26,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 10:32:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:26,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 45 conjunts are in the unsatisfiable core [2023-02-15 10:32:26,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:26,607 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 6 treesize of output 5 [2023-02-15 10:32:26,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-02-15 10:32:26,691 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 10:32:26,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2023-02-15 10:32:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:32:26,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-02-15 10:32:26,731 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 14 treesize of output 16 [2023-02-15 10:32:26,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:32:26,763 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 21 treesize of output 20 [2023-02-15 10:32:26,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2023-02-15 10:32:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:26,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:26,821 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_102 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_102) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2023-02-15 10:32:26,908 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:26,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 23 treesize of output 29 [2023-02-15 10:32:26,920 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:26,920 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 30 treesize of output 33 [2023-02-15 10:32:26,924 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 9 treesize of output 7 [2023-02-15 10:32:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-15 10:32:27,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107309012] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:32:27,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:32:27,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 24 [2023-02-15 10:32:27,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266101923] [2023-02-15 10:32:27,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:32:27,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 10:32:27,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:27,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 10:32:27,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=428, Unknown=1, NotChecked=42, Total=552 [2023-02-15 10:32:27,047 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 24 states, 24 states have (on average 2.125) internal successors, (51), 24 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:27,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:27,810 INFO L93 Difference]: Finished difference Result 119 states and 156 transitions. [2023-02-15 10:32:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-15 10:32:27,811 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.125) internal successors, (51), 24 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-02-15 10:32:27,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:27,812 INFO L225 Difference]: With dead ends: 119 [2023-02-15 10:32:27,812 INFO L226 Difference]: Without dead ends: 86 [2023-02-15 10:32:27,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=1089, Unknown=2, NotChecked=70, Total=1406 [2023-02-15 10:32:27,813 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 163 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 55 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:27,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 229 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 418 Invalid, 8 Unknown, 60 Unchecked, 0.4s Time] [2023-02-15 10:32:27,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-02-15 10:32:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 65. [2023-02-15 10:32:27,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.25) internal successors, (80), 64 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2023-02-15 10:32:27,820 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 23 [2023-02-15 10:32:27,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:27,820 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2023-02-15 10:32:27,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.125) internal successors, (51), 24 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2023-02-15 10:32:27,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 10:32:27,821 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:27,821 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] [2023-02-15 10:32:27,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 10:32:28,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:28,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:28,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:28,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1793450878, now seen corresponding path program 1 times [2023-02-15 10:32:28,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:28,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580283123] [2023-02-15 10:32:28,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:28,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:28,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:28,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580283123] [2023-02-15 10:32:28,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580283123] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:28,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026284500] [2023-02-15 10:32:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:28,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:28,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:28,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:28,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 10:32:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:28,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-15 10:32:28,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:28,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-02-15 10:32:28,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-02-15 10:32:28,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 7 [2023-02-15 10:32:28,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 7 [2023-02-15 10:32:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 10:32:28,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 10:32:28,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026284500] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:32:28,566 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:32:28,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 12 [2023-02-15 10:32:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848425177] [2023-02-15 10:32:28,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:32:28,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 10:32:28,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 10:32:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-02-15 10:32:28,567 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:28,724 INFO L93 Difference]: Finished difference Result 82 states and 99 transitions. [2023-02-15 10:32:28,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 10:32:28,726 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-15 10:32:28,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:28,728 INFO L225 Difference]: With dead ends: 82 [2023-02-15 10:32:28,728 INFO L226 Difference]: Without dead ends: 74 [2023-02-15 10:32:28,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-02-15 10:32:28,729 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 39 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:28,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 136 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 10:32:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-15 10:32:28,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 67. [2023-02-15 10:32:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.2424242424242424) internal successors, (82), 66 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2023-02-15 10:32:28,748 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 25 [2023-02-15 10:32:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:28,748 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2023-02-15 10:32:28,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2023-02-15 10:32:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 10:32:28,749 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:28,749 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:28,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 10:32:28,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-15 10:32:28,957 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1425682976, now seen corresponding path program 1 times [2023-02-15 10:32:28,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:28,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810072249] [2023-02-15 10:32:28,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:29,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:29,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810072249] [2023-02-15 10:32:29,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810072249] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:29,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939815479] [2023-02-15 10:32:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:29,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:29,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:29,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:29,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 10:32:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:29,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-15 10:32:29,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:29,597 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 6 treesize of output 5 [2023-02-15 10:32:29,649 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 10:32:29,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2023-02-15 10:32:29,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 10:32:29,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-02-15 10:32:29,737 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 10:32:29,738 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 61 [2023-02-15 10:32:29,741 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 42 treesize of output 44 [2023-02-15 10:32:29,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2023-02-15 10:32:29,790 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:29,791 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2023-02-15 10:32:29,794 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:29,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-02-15 10:32:29,815 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 14 treesize of output 16 [2023-02-15 10:32:29,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2023-02-15 10:32:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:29,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:29,892 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_242 (Array Int Int))) (= 3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_242) |c_ULTIMATE.start_main_~p~0#1.base|) |c_ULTIMATE.start_main_~p~0#1.offset|))) is different from false [2023-02-15 10:32:29,978 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:29,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 36 treesize of output 37 [2023-02-15 10:32:29,985 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:29,985 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 75 treesize of output 78 [2023-02-15 10:32:29,989 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 27 treesize of output 16 [2023-02-15 10:32:32,141 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:32,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 22 treesize of output 23 [2023-02-15 10:32:32,147 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:32,147 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 36 treesize of output 35 [2023-02-15 10:32:32,150 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 7 treesize of output 3 [2023-02-15 10:32:32,161 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-15 10:32:32,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 22 treesize of output 1 [2023-02-15 10:32:32,166 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-15 10:32:32,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 1 [2023-02-15 10:32:32,313 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:32,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939815479] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:32:32,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:32:32,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 33 [2023-02-15 10:32:32,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740078765] [2023-02-15 10:32:32,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:32:32,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-02-15 10:32:32,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:32,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-02-15 10:32:32,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=901, Unknown=9, NotChecked=60, Total=1056 [2023-02-15 10:32:32,315 INFO L87 Difference]: Start difference. First operand 67 states and 82 transitions. Second operand has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:33,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:33,112 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions. [2023-02-15 10:32:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-15 10:32:33,114 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-15 10:32:33,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:33,114 INFO L225 Difference]: With dead ends: 119 [2023-02-15 10:32:33,114 INFO L226 Difference]: Without dead ends: 92 [2023-02-15 10:32:33,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=260, Invalid=2084, Unknown=12, NotChecked=94, Total=2450 [2023-02-15 10:32:33,115 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 126 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:33,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 326 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 520 Invalid, 1 Unknown, 50 Unchecked, 0.3s Time] [2023-02-15 10:32:33,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-02-15 10:32:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 73. [2023-02-15 10:32:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 72 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2023-02-15 10:32:33,120 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 26 [2023-02-15 10:32:33,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:33,120 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2023-02-15 10:32:33,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.0606060606060606) internal successors, (68), 33 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2023-02-15 10:32:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 10:32:33,121 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:33,121 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:33,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 10:32:33,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:33,326 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:33,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:33,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1417962172, now seen corresponding path program 2 times [2023-02-15 10:32:33,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:33,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364307708] [2023-02-15 10:32:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:33,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 10:32:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:33,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364307708] [2023-02-15 10:32:33,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364307708] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:33,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:33,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 10:32:33,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145523976] [2023-02-15 10:32:33,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:33,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 10:32:33,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:33,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 10:32:33,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 10:32:33,351 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:33,360 INFO L93 Difference]: Finished difference Result 98 states and 121 transitions. [2023-02-15 10:32:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 10:32:33,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-02-15 10:32:33,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:33,361 INFO L225 Difference]: With dead ends: 98 [2023-02-15 10:32:33,361 INFO L226 Difference]: Without dead ends: 56 [2023-02-15 10:32:33,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 10:32:33,361 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 15 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:33,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 68 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-02-15 10:32:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2023-02-15 10:32:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:33,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-02-15 10:32:33,365 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 29 [2023-02-15 10:32:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:33,365 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-02-15 10:32:33,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-02-15 10:32:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 10:32:33,366 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:33,366 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:33,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 10:32:33,366 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:33,366 INFO L85 PathProgramCache]: Analyzing trace with hash -972154903, now seen corresponding path program 1 times [2023-02-15 10:32:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:33,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429182679] [2023-02-15 10:32:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:33,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:33,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:33,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429182679] [2023-02-15 10:32:33,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429182679] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:33,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060366367] [2023-02-15 10:32:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:33,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:33,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:33,981 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:33,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 10:32:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:34,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 69 conjunts are in the unsatisfiable core [2023-02-15 10:32:34,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:34,076 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 6 treesize of output 5 [2023-02-15 10:32:34,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2023-02-15 10:32:34,171 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 10:32:34,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2023-02-15 10:32:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:32:34,190 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 21 treesize of output 20 [2023-02-15 10:32:34,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 10:32:34,236 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 10:32:34,236 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 1 case distinctions, treesize of input 26 treesize of output 26 [2023-02-15 10:32:34,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:32:34,243 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 14 treesize of output 16 [2023-02-15 10:32:34,291 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 10:32:34,292 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2023-02-15 10:32:34,296 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 20 treesize of output 22 [2023-02-15 10:32:34,341 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-15 10:32:34,341 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 1 case distinctions, treesize of input 17 treesize of output 23 [2023-02-15 10:32:34,352 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-02-15 10:32:34,352 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 1 case distinctions, treesize of input 19 treesize of output 22 [2023-02-15 10:32:34,357 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 8 treesize of output 4 [2023-02-15 10:32:34,475 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:34,476 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2023-02-15 10:32:34,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:32:34,521 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-15 10:32:34,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2023-02-15 10:32:34,599 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2023-02-15 10:32:34,599 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 2 case distinctions, treesize of input 21 treesize of output 30 [2023-02-15 10:32:34,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2023-02-15 10:32:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:34,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:34,695 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_399 (Array Int Int))) (= 1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_399) |c_ULTIMATE.start_main_~l1~0#1.base|) |c_ULTIMATE.start_main_~l1~0#1.offset|))) is different from false [2023-02-15 10:32:39,928 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_391 (Array Int Int)) (v_subst_2 Int)) (let ((.cse0 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_391))) (store .cse1 v_subst_2 (store (select .cse1 v_subst_2) |c_ULTIMATE.start_main_~t~0#1.offset| 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= 3 .cse0) (= .cse0 1)))) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_390 (Array Int Int)) (v_subst_3 Int)) (or (= (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_391))) (store .cse2 v_subst_3 (store (select .cse2 v_subst_3) |c_ULTIMATE.start_main_~t~0#1.offset| 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 3) (forall ((v_ArrVal_396 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~a~0#1.base| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_390) v_subst_3 v_ArrVal_396) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))))))) is different from false [2023-02-15 10:32:39,950 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_390 (Array Int Int)) (v_subst_3 Int)) (or (forall ((v_ArrVal_396 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~a~0#1.base| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_390) v_subst_3 v_ArrVal_396) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_391))) (store .cse0 v_subst_3 (store (select .cse0 v_subst_3) 0 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 3))) (forall ((v_ArrVal_391 (Array Int Int)) (v_subst_2 Int)) (let ((.cse1 (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_391))) (store .cse2 v_subst_2 (store (select .cse2 v_subst_2) 0 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= .cse1 1) (= 3 .cse1))))) is different from false [2023-02-15 10:32:40,023 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 26 treesize of output 27 [2023-02-15 10:32:40,036 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,037 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 75 treesize of output 74 [2023-02-15 10:32:40,043 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 58 treesize of output 50 [2023-02-15 10:32:40,047 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 50 treesize of output 46 [2023-02-15 10:32:40,115 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse0 (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_384 Int) (v_subst_3 Int)) (= (select (select (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store .cse1 .cse2 v_ArrVal_384)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_391))) (store .cse5 v_subst_3 (store (select .cse5 v_subst_3) 0 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 3)))) (and (or .cse0 (= |c_ULTIMATE.start_main_~p~0#1.offset| |c_ULTIMATE.start_main_~a~0#1.offset|)) (or .cse0 (= |c_ULTIMATE.start_main_~p~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_384 Int)) (= 3 (select (store (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store .cse1 .cse2 v_ArrVal_384)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_391) |c_ULTIMATE.start_main_~a~0#1.base|) 0 3) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or .cse0 (not (= |c_ULTIMATE.start_main_~t~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|))) (forall ((v_ArrVal_391 (Array Int Int)) (v_ArrVal_384 Int) (v_subst_2 Int)) (let ((.cse3 (select (select (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| (store .cse1 .cse2 v_ArrVal_384)) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_391))) (store .cse4 v_subst_2 (store (select .cse4 v_subst_2) 0 3))) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= 3 .cse3) (= .cse3 1))))))) is different from false [2023-02-15 10:32:40,311 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 47 treesize of output 40 [2023-02-15 10:32:40,317 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,317 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 66 treesize of output 70 [2023-02-15 10:32:40,320 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 62 treesize of output 56 [2023-02-15 10:32:40,326 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 6 treesize of output 4 [2023-02-15 10:32:40,334 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 43 treesize of output 47 [2023-02-15 10:32:40,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 40 [2023-02-15 10:32:40,379 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:40,389 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 86 [2023-02-15 10:32:40,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 31 [2023-02-15 10:32:40,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2023-02-15 10:32:40,433 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-15 10:32:40,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2023-02-15 10:32:40,455 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-15 10:32:40,463 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 16 treesize of output 12 [2023-02-15 10:32:40,471 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 40 [2023-02-15 10:32:40,474 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:40,482 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 78 [2023-02-15 10:32:40,487 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 33 treesize of output 31 [2023-02-15 10:32:40,506 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 6 treesize of output 4 [2023-02-15 10:32:40,511 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 34 treesize of output 30 [2023-02-15 10:32:40,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 33 [2023-02-15 10:32:40,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 95 treesize of output 61 [2023-02-15 10:32:40,558 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:40,569 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 141 [2023-02-15 10:32:40,575 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 62 treesize of output 58 [2023-02-15 10:32:40,581 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 6 treesize of output 4 [2023-02-15 10:32:40,657 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 70 treesize of output 72 [2023-02-15 10:32:40,752 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:40,754 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-15 10:32:40,760 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 63 treesize of output 61 [2023-02-15 10:32:40,795 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 26 treesize of output 32 [2023-02-15 10:32:40,797 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:40,802 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,802 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 19 treesize of output 23 [2023-02-15 10:32:40,806 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 6 treesize of output 4 [2023-02-15 10:32:40,813 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:40,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 28 [2023-02-15 10:32:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 12 not checked. [2023-02-15 10:32:40,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060366367] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:32:40,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:32:40,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 44 [2023-02-15 10:32:40,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73900018] [2023-02-15 10:32:40,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:32:40,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-02-15 10:32:40,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-02-15 10:32:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1401, Unknown=17, NotChecked=316, Total=1892 [2023-02-15 10:32:40,950 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 44 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 44 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:46,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:46,915 INFO L93 Difference]: Finished difference Result 89 states and 102 transitions. [2023-02-15 10:32:46,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-15 10:32:46,916 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 44 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-15 10:32:46,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:46,916 INFO L225 Difference]: With dead ends: 89 [2023-02-15 10:32:46,916 INFO L226 Difference]: Without dead ends: 87 [2023-02-15 10:32:46,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=418, Invalid=3240, Unknown=18, NotChecked=484, Total=4160 [2023-02-15 10:32:46,919 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 167 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 35 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 318 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:46,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 338 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 752 Invalid, 7 Unknown, 318 Unchecked, 0.9s Time] [2023-02-15 10:32:46,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-15 10:32:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 64. [2023-02-15 10:32:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 63 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2023-02-15 10:32:46,927 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 32 [2023-02-15 10:32:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:46,929 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2023-02-15 10:32:46,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 44 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2023-02-15 10:32:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-15 10:32:46,930 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:46,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:46,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 10:32:47,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:47,138 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2060333054, now seen corresponding path program 1 times [2023-02-15 10:32:47,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:47,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683415497] [2023-02-15 10:32:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:47,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 10:32:47,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:47,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683415497] [2023-02-15 10:32:47,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683415497] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:47,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663500946] [2023-02-15 10:32:47,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:47,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:47,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:47,203 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:47,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 10:32:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:47,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 10:32:47,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 10:32:47,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 10:32:47,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663500946] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:32:47,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:32:47,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2023-02-15 10:32:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741246921] [2023-02-15 10:32:47,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:32:47,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 10:32:47,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:47,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 10:32:47,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 10:32:47,356 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:47,419 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2023-02-15 10:32:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 10:32:47,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-02-15 10:32:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:47,419 INFO L225 Difference]: With dead ends: 85 [2023-02-15 10:32:47,419 INFO L226 Difference]: Without dead ends: 80 [2023-02-15 10:32:47,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-02-15 10:32:47,420 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 73 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:47,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 62 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:47,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-15 10:32:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2023-02-15 10:32:47,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:47,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2023-02-15 10:32:47,423 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 34 [2023-02-15 10:32:47,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:47,423 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2023-02-15 10:32:47,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2023-02-15 10:32:47,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-15 10:32:47,424 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:47,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:47,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 10:32:47,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 10:32:47,631 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:47,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:47,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2062043076, now seen corresponding path program 1 times [2023-02-15 10:32:47,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:47,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446133932] [2023-02-15 10:32:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:47,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:48,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:48,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446133932] [2023-02-15 10:32:48,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446133932] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:48,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091788790] [2023-02-15 10:32:48,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:48,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:48,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:48,374 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:48,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 10:32:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:48,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 45 conjunts are in the unsatisfiable core [2023-02-15 10:32:48,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:48,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-02-15 10:32:48,552 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-02-15 10:32:48,552 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 1 case distinctions, treesize of input 23 treesize of output 26 [2023-02-15 10:32:48,600 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2023-02-15 10:32:48,600 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 1 case distinctions, treesize of input 23 treesize of output 22 [2023-02-15 10:32:48,612 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2023-02-15 10:32:48,613 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 1 case distinctions, treesize of input 23 treesize of output 22 [2023-02-15 10:32:48,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 7 [2023-02-15 10:32:48,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 19 treesize of output 7 [2023-02-15 10:32:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-15 10:32:48,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:49,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 4 [2023-02-15 10:32:49,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 36 treesize of output 24 [2023-02-15 10:32:49,024 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-15 10:32:49,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091788790] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 10:32:49,024 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 10:32:49,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8, 9] total 26 [2023-02-15 10:32:49,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014484040] [2023-02-15 10:32:49,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 10:32:49,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 10:32:49,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:49,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 10:32:49,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-02-15 10:32:49,025 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:49,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:49,607 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2023-02-15 10:32:49,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-15 10:32:49,607 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-02-15 10:32:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:49,608 INFO L225 Difference]: With dead ends: 97 [2023-02-15 10:32:49,608 INFO L226 Difference]: Without dead ends: 90 [2023-02-15 10:32:49,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 10:32:49,609 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 52 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:49,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 251 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 10:32:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-15 10:32:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 71. [2023-02-15 10:32:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.1571428571428573) internal successors, (81), 70 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2023-02-15 10:32:49,612 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 34 [2023-02-15 10:32:49,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:49,613 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2023-02-15 10:32:49,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 26 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 10:32:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2023-02-15 10:32:49,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 10:32:49,613 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:49,613 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:49,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 10:32:49,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:49,818 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:49,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:49,818 INFO L85 PathProgramCache]: Analyzing trace with hash 355505244, now seen corresponding path program 2 times [2023-02-15 10:32:49,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:49,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142884883] [2023-02-15 10:32:49,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:49,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:50,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:50,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142884883] [2023-02-15 10:32:50,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142884883] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 10:32:50,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355623935] [2023-02-15 10:32:50,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 10:32:50,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 10:32:50,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:50,629 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 10:32:50,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 10:32:50,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 10:32:50,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 10:32:50,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 76 conjunts are in the unsatisfiable core [2023-02-15 10:32:50,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 10:32:50,744 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 6 treesize of output 5 [2023-02-15 10:32:50,836 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 10:32:50,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2023-02-15 10:32:50,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-02-15 10:32:50,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 10:32:50,933 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-15 10:32:50,933 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 1 case distinctions, treesize of input 37 treesize of output 35 [2023-02-15 10:32:50,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 10:32:50,940 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 16 treesize of output 18 [2023-02-15 10:32:50,960 INFO L321 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2023-02-15 10:32:50,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2023-02-15 10:32:51,013 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2023-02-15 10:32:51,013 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 85 [2023-02-15 10:32:51,031 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 96 [2023-02-15 10:32:51,141 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-15 10:32:51,141 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 158 [2023-02-15 10:32:51,157 INFO L321 Elim1Store]: treesize reduction 46, result has 27.0 percent of original size [2023-02-15 10:32:51,158 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 2 case distinctions, treesize of input 161 treesize of output 149 [2023-02-15 10:32:51,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 43 [2023-02-15 10:32:51,312 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-02-15 10:32:51,312 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 96 treesize of output 83 [2023-02-15 10:32:51,317 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 76 treesize of output 62 [2023-02-15 10:32:51,320 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 68 treesize of output 58 [2023-02-15 10:32:51,323 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 52 treesize of output 42 [2023-02-15 10:32:51,340 INFO L321 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2023-02-15 10:32:51,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 44 [2023-02-15 10:32:51,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 15 [2023-02-15 10:32:51,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 [2023-02-15 10:32:51,390 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 14 treesize of output 16 [2023-02-15 10:32:51,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 7 [2023-02-15 10:32:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:51,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 10:32:51,505 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_724 (Array Int Int)) (v_ArrVal_726 (Array Int Int)) (v_ArrVal_725 (Array Int Int)) (v_ArrVal_727 (Array Int Int))) (= 3 (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_727) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_725) |c_ULTIMATE.start_main_~p~0#1.base|) .cse0)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_726) |c_ULTIMATE.start_main_~p~0#1.base|) .cse0))))) is different from false [2023-02-15 10:32:51,513 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_724 (Array Int Int)) (v_ArrVal_726 (Array Int Int)) (v_ArrVal_725 (Array Int Int)) (v_ArrVal_727 (Array Int Int))) (= (let ((.cse2 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base|) .cse2)) (.cse1 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base|) .cse2) 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_724) .cse0 v_ArrVal_727) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_725) .cse0) .cse1)) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_726) .cse0) .cse1)))) 3)) is different from false [2023-02-15 10:32:51,589 INFO L321 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2023-02-15 10:32:51,590 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 119 [2023-02-15 10:32:51,614 INFO L321 Elim1Store]: treesize reduction 11, result has 92.9 percent of original size [2023-02-15 10:32:51,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 913 treesize of output 919 [2023-02-15 10:32:51,621 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 380 treesize of output 316 [2023-02-15 10:32:51,626 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 696 treesize of output 568 [2023-02-15 10:32:52,721 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 56 [2023-02-15 10:32:52,728 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,728 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 1 case distinctions, treesize of input 63 treesize of output 67 [2023-02-15 10:32:52,741 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,742 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 1 case distinctions, treesize of input 57 treesize of output 56 [2023-02-15 10:32:52,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,747 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 1 case distinctions, treesize of input 63 treesize of output 67 [2023-02-15 10:32:52,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,759 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 1 case distinctions, treesize of input 57 treesize of output 56 [2023-02-15 10:32:52,764 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,764 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 1 case distinctions, treesize of input 47 treesize of output 51 [2023-02-15 10:32:52,777 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,778 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 1 case distinctions, treesize of input 133 treesize of output 121 [2023-02-15 10:32:52,784 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,784 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 1 case distinctions, treesize of input 141 treesize of output 134 [2023-02-15 10:32:52,799 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,799 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 1 case distinctions, treesize of input 57 treesize of output 56 [2023-02-15 10:32:52,804 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:52,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 51 [2023-02-15 10:32:53,279 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 84 treesize of output 75 [2023-02-15 10:32:53,338 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 5645 treesize of output 4480 [2023-02-15 10:32:53,351 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 4498 treesize of output 3328 [2023-02-15 10:32:53,356 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 10:32:53,368 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 4282 treesize of output 3579 [2023-02-15 10:32:53,382 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3581 treesize of output 2829 [2023-02-15 10:32:53,442 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 2738 treesize of output 2732 [2023-02-15 10:32:53,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2518 treesize of output 2394 [2023-02-15 10:32:53,520 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:32:53,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 2526 treesize of output 2466 [2023-02-15 10:33:16,427 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:16,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 88 treesize of output 79 [2023-02-15 10:33:16,435 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:16,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 68 treesize of output 69 [2023-02-15 10:33:16,451 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:16,452 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 676 treesize of output 483 [2023-02-15 10:33:17,052 INFO L321 Elim1Store]: treesize reduction 390, result has 58.3 percent of original size [2023-02-15 10:33:17,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 11272 treesize of output 10711 [2023-02-15 10:33:17,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:17,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 10348 treesize of output 9364 [2023-02-15 10:33:17,165 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:17,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9338 treesize of output 6086 [2023-02-15 10:33:17,178 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 6104 treesize of output 5964 [2023-02-15 10:33:17,199 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:17,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6028 treesize of output 5924 [2023-02-15 10:33:17,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 10:33:17,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5742 treesize of output 5638