./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-properties/list_flag-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/list-properties/list_flag-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 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 00:51:28,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 00:51:28,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 00:51:28,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 00:51:28,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 00:51:28,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 00:51:28,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 00:51:28,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 00:51:28,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 00:51:28,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 00:51:28,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 00:51:28,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 00:51:28,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 00:51:28,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 00:51:28,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 00:51:28,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 00:51:28,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 00:51:28,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 00:51:28,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 00:51:28,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 00:51:28,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 00:51:28,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 00:51:28,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 00:51:28,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 00:51:28,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 00:51:28,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 00:51:28,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 00:51:28,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 00:51:28,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 00:51:28,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 00:51:28,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 00:51:28,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 00:51:28,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 00:51:28,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 00:51:28,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 00:51:28,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 00:51:28,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 00:51:28,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 00:51:28,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 00:51:28,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 00:51:28,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 00:51:28,907 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 00:51:28,925 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 00:51:28,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 00:51:28,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 00:51:28,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 00:51:28,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 00:51:28,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 00:51:28,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 00:51:28,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 00:51:28,928 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 00:51:28,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 00:51:28,929 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 00:51:28,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 00:51:28,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 00:51:28,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 00:51:28,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 00:51:28,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 00:51:28,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 00:51:28,930 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 00:51:28,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 00:51:28,931 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 00:51:28,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 00:51:28,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 00:51:28,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 00:51:28,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 00:51:28,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 00:51:28,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 00:51:28,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 00:51:28,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 00:51:28,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 00:51:28,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 00:51:28,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 00:51:28,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 00:51:28,933 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 00:51:28,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 00:51:28,934 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 00:51:28,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4547628201bbb61f481f84914c46868091db8c6a3d0c4d8890951b495ae3c7da [2023-02-16 00:51:29,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 00:51:29,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 00:51:29,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 00:51:29,239 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 00:51:29,240 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 00:51:29,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/list_flag-2.i [2023-02-16 00:51:30,357 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 00:51:30,647 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 00:51:30,647 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/list_flag-2.i [2023-02-16 00:51:30,662 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/693dfb6e1/c0af2ea8e71547b3b2ab5a37256cab87/FLAG63597e8ec [2023-02-16 00:51:30,674 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/693dfb6e1/c0af2ea8e71547b3b2ab5a37256cab87 [2023-02-16 00:51:30,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 00:51:30,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 00:51:30,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 00:51:30,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 00:51:30,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 00:51:30,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:51:30" (1/1) ... [2023-02-16 00:51:30,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a4986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:30, skipping insertion in model container [2023-02-16 00:51:30,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:51:30" (1/1) ... [2023-02-16 00:51:30,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 00:51:30,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 00:51:30,974 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/list_flag-2.i[23375,23388] [2023-02-16 00:51:30,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 00:51:30,991 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 00:51:31,045 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/list_flag-2.i[23375,23388] [2023-02-16 00:51:31,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 00:51:31,073 INFO L208 MainTranslator]: Completed translation [2023-02-16 00:51:31,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31 WrapperNode [2023-02-16 00:51:31,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 00:51:31,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 00:51:31,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 00:51:31,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 00:51:31,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,126 INFO L138 Inliner]: procedures = 124, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2023-02-16 00:51:31,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 00:51:31,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 00:51:31,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 00:51:31,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 00:51:31,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 00:51:31,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 00:51:31,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 00:51:31,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 00:51:31,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (1/1) ... [2023-02-16 00:51:31,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 00:51:31,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:31,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 00:51:31,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 00:51:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-02-16 00:51:31,259 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-02-16 00:51:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-16 00:51:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-16 00:51:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-16 00:51:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 00:51:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-16 00:51:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-16 00:51:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 00:51:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 00:51:31,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 00:51:31,365 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 00:51:31,367 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 00:51:31,395 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-02-16 00:51:31,497 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 00:51:31,517 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 00:51:31,517 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-16 00:51:31,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:51:31 BoogieIcfgContainer [2023-02-16 00:51:31,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 00:51:31,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 00:51:31,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 00:51:31,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 00:51:31,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:51:30" (1/3) ... [2023-02-16 00:51:31,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a78b5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:51:31, skipping insertion in model container [2023-02-16 00:51:31,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:51:31" (2/3) ... [2023-02-16 00:51:31,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a78b5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:51:31, skipping insertion in model container [2023-02-16 00:51:31,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:51:31" (3/3) ... [2023-02-16 00:51:31,526 INFO L112 eAbstractionObserver]: Analyzing ICFG list_flag-2.i [2023-02-16 00:51:31,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 00:51:31,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 00:51:31,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 00:51:31,614 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;@a91431f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 00:51:31,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 00:51:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 25 states have internal predecessors, (35), 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) [2023-02-16 00:51:31,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-16 00:51:31,622 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:31,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:31,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:31,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash 943582971, now seen corresponding path program 1 times [2023-02-16 00:51:31,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:31,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567907699] [2023-02-16 00:51:31,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:31,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:31,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:31,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567907699] [2023-02-16 00:51:31,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567907699] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:51:31,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:51:31,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 00:51:31,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931029394] [2023-02-16 00:51:31,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:51:31,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 00:51:31,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 00:51:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 00:51:31,895 INFO L87 Difference]: Start difference. First operand has 27 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 25 states have internal predecessors, (35), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2023-02-16 00:51:31,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:31,919 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2023-02-16 00:51:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 00:51:31,921 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-16 00:51:31,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:31,927 INFO L225 Difference]: With dead ends: 40 [2023-02-16 00:51:31,927 INFO L226 Difference]: Without dead ends: 20 [2023-02-16 00:51:31,932 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 [2023-02-16 00:51:31,936 INFO L413 NwaCegarLoop]: 33 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, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:31,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:51:31,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-16 00:51:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-16 00:51:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-02-16 00:51:31,991 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 11 [2023-02-16 00:51:31,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:31,992 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-02-16 00:51:31,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2023-02-16 00:51:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-02-16 00:51:32,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-16 00:51:32,012 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:32,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:32,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 00:51:32,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:32,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:32,015 INFO L85 PathProgramCache]: Analyzing trace with hash 267820561, now seen corresponding path program 1 times [2023-02-16 00:51:32,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:32,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477314418] [2023-02-16 00:51:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:32,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:32,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:32,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477314418] [2023-02-16 00:51:32,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477314418] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:51:32,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:51:32,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 00:51:32,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986589302] [2023-02-16 00:51:32,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:51:32,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 00:51:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 00:51:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:51:32,373 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-02-16 00:51:32,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:32,481 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2023-02-16 00:51:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 00:51:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-16 00:51:32,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:32,484 INFO L225 Difference]: With dead ends: 44 [2023-02-16 00:51:32,485 INFO L226 Difference]: Without dead ends: 40 [2023-02-16 00:51:32,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 00:51:32,490 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:32,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 57 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:51:32,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-16 00:51:32,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2023-02-16 00:51:32,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 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) [2023-02-16 00:51:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2023-02-16 00:51:32,503 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 13 [2023-02-16 00:51:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:32,504 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2023-02-16 00:51:32,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2023-02-16 00:51:32,507 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-02-16 00:51:32,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 00:51:32,508 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:32,508 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:32,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 00:51:32,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:32,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash -273802420, now seen corresponding path program 1 times [2023-02-16 00:51:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:32,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393591935] [2023-02-16 00:51:32,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:32,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:32,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:32,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:32,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393591935] [2023-02-16 00:51:32,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393591935] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:51:32,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:51:32,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 00:51:32,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530648881] [2023-02-16 00:51:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:51:32,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 00:51:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:32,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 00:51:32,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:51:32,704 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:32,802 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2023-02-16 00:51:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 00:51:32,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-16 00:51:32,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:32,803 INFO L225 Difference]: With dead ends: 46 [2023-02-16 00:51:32,803 INFO L226 Difference]: Without dead ends: 38 [2023-02-16 00:51:32,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 00:51:32,805 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:32,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 61 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:51:32,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-16 00:51:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2023-02-16 00:51:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-16 00:51:32,810 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 15 [2023-02-16 00:51:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:32,811 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-16 00:51:32,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-16 00:51:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 00:51:32,811 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:32,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:32,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 00:51:32,812 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:32,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:32,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1517543941, now seen corresponding path program 1 times [2023-02-16 00:51:32,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:32,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460565481] [2023-02-16 00:51:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:32,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:32,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:32,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460565481] [2023-02-16 00:51:32,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460565481] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:51:32,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:51:32,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 00:51:32,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531881041] [2023-02-16 00:51:32,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:51:32,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 00:51:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:32,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 00:51:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 00:51:32,899 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:32,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:32,951 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2023-02-16 00:51:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 00:51:32,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-16 00:51:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:32,952 INFO L225 Difference]: With dead ends: 44 [2023-02-16 00:51:32,952 INFO L226 Difference]: Without dead ends: 34 [2023-02-16 00:51:32,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 00:51:32,953 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:32,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:51:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-16 00:51:32,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2023-02-16 00:51:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2023-02-16 00:51:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-16 00:51:32,957 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2023-02-16 00:51:32,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:32,957 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-16 00:51:32,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-16 00:51:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 00:51:32,958 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:32,958 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:32,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 00:51:32,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:32,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1906655974, now seen corresponding path program 1 times [2023-02-16 00:51:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:32,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080769193] [2023-02-16 00:51:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:32,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080769193] [2023-02-16 00:51:32,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080769193] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:51:32,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:51:32,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 00:51:32,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311093547] [2023-02-16 00:51:32,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:51:32,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 00:51:32,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:32,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 00:51:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 00:51:32,990 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 00:51:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:33,000 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2023-02-16 00:51:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 00:51:33,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-02-16 00:51:33,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:33,001 INFO L225 Difference]: With dead ends: 50 [2023-02-16 00:51:33,001 INFO L226 Difference]: Without dead ends: 34 [2023-02-16 00:51:33,001 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 [2023-02-16 00:51:33,002 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:33,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 41 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:51:33,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-16 00:51:33,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2023-02-16 00:51:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2023-02-16 00:51:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-02-16 00:51:33,006 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2023-02-16 00:51:33,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:33,006 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-02-16 00:51:33,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 00:51:33,007 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-02-16 00:51:33,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 00:51:33,007 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:33,007 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:33,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-16 00:51:33,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:33,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1462919029, now seen corresponding path program 1 times [2023-02-16 00:51:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:33,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804980256] [2023-02-16 00:51:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:33,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:33,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804980256] [2023-02-16 00:51:33,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804980256] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:51:33,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525195991] [2023-02-16 00:51:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:33,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:33,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:33,321 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:51:33,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 00:51:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:33,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-16 00:51:33,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:51:33,477 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 [2023-02-16 00:51:33,562 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 [2023-02-16 00:51:33,603 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:51:33,604 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 [2023-02-16 00:51:33,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:51:33,671 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 [2023-02-16 00:51:33,722 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 [2023-02-16 00:51:33,747 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 [2023-02-16 00:51:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:33,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:51:33,778 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_106 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_106) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2023-02-16 00:51:33,898 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:33,898 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 [2023-02-16 00:51:33,908 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:33,909 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 [2023-02-16 00:51:33,913 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 [2023-02-16 00:51:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-16 00:51:34,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525195991] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:51:34,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 00:51:34,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2023-02-16 00:51:34,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999369557] [2023-02-16 00:51:34,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 00:51:34,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-16 00:51:34,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:34,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-16 00:51:34,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=269, Unknown=3, NotChecked=34, Total=380 [2023-02-16 00:51:34,022 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 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) [2023-02-16 00:51:34,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:34,465 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2023-02-16 00:51:34,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 00:51:34,468 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 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 19 [2023-02-16 00:51:34,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:34,469 INFO L225 Difference]: With dead ends: 59 [2023-02-16 00:51:34,469 INFO L226 Difference]: Without dead ends: 55 [2023-02-16 00:51:34,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=451, Unknown=6, NotChecked=46, Total=650 [2023-02-16 00:51:34,470 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 91 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:34,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 79 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 139 Invalid, 0 Unknown, 36 Unchecked, 0.2s Time] [2023-02-16 00:51:34,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-02-16 00:51:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 41. [2023-02-16 00:51:34,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 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) [2023-02-16 00:51:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2023-02-16 00:51:34,476 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 19 [2023-02-16 00:51:34,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:34,476 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2023-02-16 00:51:34,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 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) [2023-02-16 00:51:34,476 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-02-16 00:51:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 00:51:34,477 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:34,477 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:34,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 00:51:34,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-16 00:51:34,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:34,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:34,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1319849960, now seen corresponding path program 1 times [2023-02-16 00:51:34,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:34,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61699889] [2023-02-16 00:51:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:34,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:34,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:34,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61699889] [2023-02-16 00:51:34,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61699889] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:51:34,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876913071] [2023-02-16 00:51:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:34,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:34,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:34,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:51:34,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 00:51:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:35,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-16 00:51:35,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:51:35,050 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 [2023-02-16 00:51:35,104 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 [2023-02-16 00:51:35,145 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:51:35,145 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 [2023-02-16 00:51:35,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:51:35,191 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 [2023-02-16 00:51:35,231 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 [2023-02-16 00:51:35,256 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 [2023-02-16 00:51:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:35,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:51:35,387 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:35,387 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 [2023-02-16 00:51:35,397 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:35,398 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 [2023-02-16 00:51:35,403 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 [2023-02-16 00:51:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:35,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876913071] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:51:35,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 00:51:35,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2023-02-16 00:51:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117410688] [2023-02-16 00:51:35,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 00:51:35,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-16 00:51:35,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:35,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-16 00:51:35,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=300, Unknown=4, NotChecked=0, Total=380 [2023-02-16 00:51:35,509 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 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) [2023-02-16 00:51:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:35,836 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2023-02-16 00:51:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-16 00:51:35,837 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 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 19 [2023-02-16 00:51:35,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:35,839 INFO L225 Difference]: With dead ends: 65 [2023-02-16 00:51:35,839 INFO L226 Difference]: Without dead ends: 61 [2023-02-16 00:51:35,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=416, Unknown=4, NotChecked=0, Total=552 [2023-02-16 00:51:35,840 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 86 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:35,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 137 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 00:51:35,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-16 00:51:35,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 43. [2023-02-16 00:51:35,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 42 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2023-02-16 00:51:35,847 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 19 [2023-02-16 00:51:35,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:35,847 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2023-02-16 00:51:35,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 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) [2023-02-16 00:51:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2023-02-16 00:51:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 00:51:35,849 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:35,849 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:35,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 00:51:36,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-16 00:51:36,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:36,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:36,056 INFO L85 PathProgramCache]: Analyzing trace with hash 876113015, now seen corresponding path program 1 times [2023-02-16 00:51:36,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:36,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649530621] [2023-02-16 00:51:36,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:36,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:36,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:36,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649530621] [2023-02-16 00:51:36,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649530621] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 00:51:36,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 00:51:36,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 00:51:36,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131707175] [2023-02-16 00:51:36,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 00:51:36,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 00:51:36,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:36,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 00:51:36,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 00:51:36,089 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 00:51:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:36,099 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2023-02-16 00:51:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 00:51:36,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-02-16 00:51:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:36,101 INFO L225 Difference]: With dead ends: 53 [2023-02-16 00:51:36,101 INFO L226 Difference]: Without dead ends: 39 [2023-02-16 00:51:36,101 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 [2023-02-16 00:51:36,102 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:36,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 00:51:36,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-16 00:51:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2023-02-16 00:51:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 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) [2023-02-16 00:51:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2023-02-16 00:51:36,107 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 19 [2023-02-16 00:51:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:36,107 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2023-02-16 00:51:36,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-02-16 00:51:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-02-16 00:51:36,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-16 00:51:36,107 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:36,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:36,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-16 00:51:36,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:36,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:36,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1445257616, now seen corresponding path program 1 times [2023-02-16 00:51:36,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:36,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574397577] [2023-02-16 00:51:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:36,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:36,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:36,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574397577] [2023-02-16 00:51:36,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574397577] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:51:36,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726210661] [2023-02-16 00:51:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:36,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:36,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:36,474 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:51:36,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 00:51:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:36,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-16 00:51:36,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:51:36,570 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 [2023-02-16 00:51:36,617 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:51:36,617 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 [2023-02-16 00:51:36,642 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 [2023-02-16 00:51:36,646 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 [2023-02-16 00:51:36,689 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 00:51:36,689 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 [2023-02-16 00:51:36,693 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 [2023-02-16 00:51:36,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-02-16 00:51:36,725 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 39 treesize of output 21 [2023-02-16 00:51:36,728 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 23 treesize of output 11 [2023-02-16 00:51:36,737 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 [2023-02-16 00:51:36,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:36,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:51:36,771 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 79 treesize of output 57 [2023-02-16 00:51:36,784 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_233 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_233) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.base|)) (forall ((v_ArrVal_231 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_231) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) |c_ULTIMATE.start_main_~p~0#1.offset|)))) is different from false [2023-02-16 00:51:36,807 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:36,807 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 [2023-02-16 00:51:36,813 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:36,814 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 [2023-02-16 00:51:36,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-02-16 00:51:36,831 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 00:51:36,831 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 [2023-02-16 00:51:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-16 00:51:36,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726210661] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:51:36,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 00:51:36,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-02-16 00:51:36,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511230906] [2023-02-16 00:51:36,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 00:51:36,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-16 00:51:36,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-16 00:51:36,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=226, Unknown=1, NotChecked=30, Total=306 [2023-02-16 00:51:36,930 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:37,234 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2023-02-16 00:51:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 00:51:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-16 00:51:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:37,236 INFO L225 Difference]: With dead ends: 69 [2023-02-16 00:51:37,236 INFO L226 Difference]: Without dead ends: 65 [2023-02-16 00:51:37,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=401, Unknown=2, NotChecked=42, Total=552 [2023-02-16 00:51:37,237 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 132 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 18 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:37,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 125 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 222 Invalid, 6 Unknown, 49 Unchecked, 0.2s Time] [2023-02-16 00:51:37,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-16 00:51:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2023-02-16 00:51:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2023-02-16 00:51:37,244 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 21 [2023-02-16 00:51:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:37,244 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2023-02-16 00:51:37,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 00:51:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2023-02-16 00:51:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-16 00:51:37,245 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:37,245 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:37,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 00:51:37,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:37,452 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:37,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1652508907, now seen corresponding path program 2 times [2023-02-16 00:51:37,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:37,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889526395] [2023-02-16 00:51:37,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:37,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:37,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889526395] [2023-02-16 00:51:37,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889526395] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:51:37,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897618024] [2023-02-16 00:51:37,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:51:37,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:37,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:37,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:51:37,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 00:51:37,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:51:37,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:51:37,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-16 00:51:37,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:51:37,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-16 00:51:37,907 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:51:37,907 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 [2023-02-16 00:51:37,939 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 [2023-02-16 00:51:37,944 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 [2023-02-16 00:51:37,991 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 00:51:37,992 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 [2023-02-16 00:51:37,997 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 [2023-02-16 00:51:38,001 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 [2023-02-16 00:51:38,030 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 39 treesize of output 21 [2023-02-16 00:51:38,033 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 23 treesize of output 11 [2023-02-16 00:51:38,044 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 [2023-02-16 00:51:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:38,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:51:38,104 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 52 treesize of output 30 [2023-02-16 00:51:38,163 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:38,163 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 [2023-02-16 00:51:38,170 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:38,171 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 38 treesize of output 31 [2023-02-16 00:51:38,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 00:51:38,191 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 00:51:38,191 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 22 treesize of output 1 [2023-02-16 00:51:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:38,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897618024] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:51:38,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 00:51:38,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2023-02-16 00:51:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291812151] [2023-02-16 00:51:38,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 00:51:38,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-16 00:51:38,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:38,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-16 00:51:38,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=318, Unknown=5, NotChecked=0, Total=380 [2023-02-16 00:51:38,295 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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) [2023-02-16 00:51:38,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:38,615 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2023-02-16 00:51:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 00:51:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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 [2023-02-16 00:51:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:38,616 INFO L225 Difference]: With dead ends: 71 [2023-02-16 00:51:38,616 INFO L226 Difference]: Without dead ends: 59 [2023-02-16 00:51:38,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=651, Unknown=5, NotChecked=0, Total=812 [2023-02-16 00:51:38,617 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 92 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:38,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 121 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:51:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-02-16 00:51:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2023-02-16 00:51:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.125) internal successors, (54), 48 states have internal predecessors, (54), 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) [2023-02-16 00:51:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2023-02-16 00:51:38,623 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 23 [2023-02-16 00:51:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:38,623 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2023-02-16 00:51:38,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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) [2023-02-16 00:51:38,623 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-02-16 00:51:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-16 00:51:38,624 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:38,624 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:38,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 00:51:38,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:38,829 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1313154078, now seen corresponding path program 1 times [2023-02-16 00:51:38,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:38,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890206314] [2023-02-16 00:51:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:38,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:39,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:39,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890206314] [2023-02-16 00:51:39,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890206314] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:51:39,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291060560] [2023-02-16 00:51:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:39,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:39,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:39,093 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:51:39,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 00:51:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:39,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-16 00:51:39,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:51:39,173 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 [2023-02-16 00:51:39,222 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:51:39,222 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 [2023-02-16 00:51:39,246 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 [2023-02-16 00:51:39,250 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 [2023-02-16 00:51:39,284 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 00:51:39,285 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 [2023-02-16 00:51:39,289 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 [2023-02-16 00:51:39,292 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 [2023-02-16 00:51:39,319 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 39 treesize of output 21 [2023-02-16 00:51:39,322 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 23 treesize of output 11 [2023-02-16 00:51:39,331 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 [2023-02-16 00:51:39,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:39,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:51:39,377 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 52 treesize of output 30 [2023-02-16 00:51:39,434 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:39,437 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 [2023-02-16 00:51:39,443 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:39,444 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 [2023-02-16 00:51:39,447 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 [2023-02-16 00:51:39,462 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-02-16 00:51:39,463 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 [2023-02-16 00:51:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:39,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291060560] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:51:39,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 00:51:39,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2023-02-16 00:51:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582643626] [2023-02-16 00:51:39,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 00:51:39,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-16 00:51:39,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:39,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-16 00:51:39,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=318, Unknown=5, NotChecked=0, Total=380 [2023-02-16 00:51:39,569 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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) [2023-02-16 00:51:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:51:39,831 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2023-02-16 00:51:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 00:51:39,832 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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 [2023-02-16 00:51:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:51:39,833 INFO L225 Difference]: With dead ends: 65 [2023-02-16 00:51:39,833 INFO L226 Difference]: Without dead ends: 53 [2023-02-16 00:51:39,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=651, Unknown=5, NotChecked=0, Total=812 [2023-02-16 00:51:39,834 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 101 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 00:51:39,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 91 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 00:51:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-02-16 00:51:39,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 45. [2023-02-16 00:51:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 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) [2023-02-16 00:51:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2023-02-16 00:51:39,838 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 23 [2023-02-16 00:51:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:51:39,838 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2023-02-16 00:51:39,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.7) internal successors, (54), 20 states have internal predecessors, (54), 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) [2023-02-16 00:51:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2023-02-16 00:51:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 00:51:39,839 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:51:39,839 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:51:39,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 00:51:40,040 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,SelfDestructingSolverStorable10 [2023-02-16 00:51:40,040 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:51:40,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:51:40,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1574953317, now seen corresponding path program 3 times [2023-02-16 00:51:40,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:51:40,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762537763] [2023-02-16 00:51:40,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:51:40,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:51:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:51:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:40,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:51:40,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762537763] [2023-02-16 00:51:40,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762537763] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:51:40,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983188905] [2023-02-16 00:51:40,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 00:51:40,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:51:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:51:40,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:51:40,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 00:51:40,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-16 00:51:40,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:51:40,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 69 conjunts are in the unsatisfiable core [2023-02-16 00:51:40,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:51:40,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-16 00:51:40,859 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-16 00:51:40,860 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 [2023-02-16 00:51:40,905 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 11 treesize of output 7 [2023-02-16 00:51:40,912 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 [2023-02-16 00:51:40,960 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 00:51:40,961 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 31 treesize of output 29 [2023-02-16 00:51:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 00:51:40,972 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 [2023-02-16 00:51:40,978 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-16 00:51:41,034 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-16 00:51:41,035 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 20 treesize of output 22 [2023-02-16 00:51:41,103 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-02-16 00:51:41,103 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 141 treesize of output 103 [2023-02-16 00:51:41,110 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 41 treesize of output 36 [2023-02-16 00:51:41,113 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 115 treesize of output 93 [2023-02-16 00:51:41,209 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-16 00:51:41,209 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 174 treesize of output 145 [2023-02-16 00:51:41,227 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-02-16 00:51:41,227 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 146 treesize of output 134 [2023-02-16 00:51:41,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2023-02-16 00:51:41,343 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-02-16 00:51:41,343 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 60 [2023-02-16 00:51:41,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 26 [2023-02-16 00:51:41,401 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:51:41,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2023-02-16 00:51:41,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:41,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:51:41,674 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:41,675 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 75 treesize of output 79 [2023-02-16 00:51:41,693 INFO L321 Elim1Store]: treesize reduction 4, result has 91.7 percent of original size [2023-02-16 00:51:41,694 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 656 treesize of output 655 [2023-02-16 00:51:41,703 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:41,703 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 537 treesize of output 490 [2023-02-16 00:51:42,198 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 [2023-02-16 00:51:42,791 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 60 treesize of output 44 [2023-02-16 00:51:48,895 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:48,895 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 61 treesize of output 51 [2023-02-16 00:51:48,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:48,907 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 320 treesize of output 205 [2023-02-16 00:51:48,916 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:48,916 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 29 treesize of output 30 [2023-02-16 00:51:48,928 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:48,929 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 85 treesize of output 81 [2023-02-16 00:51:48,935 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 139 treesize of output 123 [2023-02-16 00:51:48,953 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:48,954 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 164 treesize of output 157 [2023-02-16 00:51:48,961 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 142 treesize of output 126 [2023-02-16 00:51:48,971 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:48,972 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 258 treesize of output 198 [2023-02-16 00:51:49,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,692 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 29 treesize of output 30 [2023-02-16 00:51:49,699 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,699 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 71 treesize of output 61 [2023-02-16 00:51:49,710 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,711 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 204 treesize of output 137 [2023-02-16 00:51:49,715 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:49,724 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,725 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 61 treesize of output 54 [2023-02-16 00:51:49,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,749 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 102 treesize of output 82 [2023-02-16 00:51:49,762 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,762 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 37 treesize of output 37 [2023-02-16 00:51:49,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2023-02-16 00:51:49,818 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,819 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 59 treesize of output 49 [2023-02-16 00:51:49,821 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:49,828 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,828 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 61 treesize of output 54 [2023-02-16 00:51:49,834 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,834 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 33 treesize of output 29 [2023-02-16 00:51:49,866 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,867 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 29 treesize of output 30 [2023-02-16 00:51:49,877 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,877 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 202 treesize of output 135 [2023-02-16 00:51:49,886 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,886 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 29 treesize of output 30 [2023-02-16 00:51:49,892 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 70 treesize of output 62 [2023-02-16 00:51:49,896 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:49,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,907 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 36 treesize of output 35 [2023-02-16 00:51:49,916 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,916 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 90 treesize of output 70 [2023-02-16 00:51:49,926 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,926 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 33 treesize of output 33 [2023-02-16 00:51:49,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:49,999 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 30 treesize of output 31 [2023-02-16 00:51:50,008 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,009 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 46 treesize of output 47 [2023-02-16 00:51:50,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,022 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 184 treesize of output 135 [2023-02-16 00:51:50,029 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 74 treesize of output 66 [2023-02-16 00:51:50,040 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,041 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 75 treesize of output 75 [2023-02-16 00:51:50,046 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,055 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,056 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 47 treesize of output 46 [2023-02-16 00:51:50,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,066 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 110 treesize of output 82 [2023-02-16 00:51:50,221 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,222 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 51 treesize of output 41 [2023-02-16 00:51:50,226 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,241 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,242 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 77 treesize of output 58 [2023-02-16 00:51:50,252 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,253 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 31 treesize of output 27 [2023-02-16 00:51:50,288 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,289 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 30 treesize of output 31 [2023-02-16 00:51:50,299 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,300 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 310 treesize of output 243 [2023-02-16 00:51:50,308 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,309 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 64 treesize of output 54 [2023-02-16 00:51:50,319 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,320 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 159 treesize of output 155 [2023-02-16 00:51:50,327 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 142 treesize of output 126 [2023-02-16 00:51:50,331 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,341 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,341 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 72 treesize of output 65 [2023-02-16 00:51:50,351 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,352 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 178 treesize of output 142 [2023-02-16 00:51:50,475 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,476 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 30 treesize of output 31 [2023-02-16 00:51:50,486 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,487 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 275 treesize of output 214 [2023-02-16 00:51:50,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,496 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 34 treesize of output 35 [2023-02-16 00:51:50,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 134 [2023-02-16 00:51:50,513 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,513 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 143 treesize of output 139 [2023-02-16 00:51:50,518 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,528 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 47 treesize of output 46 [2023-02-16 00:51:50,537 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,537 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 167 treesize of output 135 [2023-02-16 00:51:50,619 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,619 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 29 treesize of output 30 [2023-02-16 00:51:50,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,625 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 35 treesize of output 36 [2023-02-16 00:51:50,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,650 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 155 treesize of output 118 [2023-02-16 00:51:50,655 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 70 treesize of output 62 [2023-02-16 00:51:50,662 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,672 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,673 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 [2023-02-16 00:51:50,683 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,684 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 83 treesize of output 67 [2023-02-16 00:51:50,694 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,695 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 33 treesize of output 33 [2023-02-16 00:51:50,780 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,781 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 30 treesize of output 31 [2023-02-16 00:51:50,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,794 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 216 treesize of output 167 [2023-02-16 00:51:50,803 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,803 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 64 treesize of output 54 [2023-02-16 00:51:50,809 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 74 treesize of output 66 [2023-02-16 00:51:50,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,821 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 75 treesize of output 75 [2023-02-16 00:51:50,826 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,836 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 72 treesize of output 65 [2023-02-16 00:51:50,849 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,850 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 114 treesize of output 86 [2023-02-16 00:51:50,966 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,967 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 51 treesize of output 41 [2023-02-16 00:51:50,970 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:50,976 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,976 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 77 treesize of output 58 [2023-02-16 00:51:50,984 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:50,984 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 31 treesize of output 27 [2023-02-16 00:51:51,030 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,031 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 29 treesize of output 30 [2023-02-16 00:51:51,038 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,038 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 35 treesize of output 36 [2023-02-16 00:51:51,050 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,051 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 258 treesize of output 197 [2023-02-16 00:51:51,063 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,063 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 80 treesize of output 76 [2023-02-16 00:51:51,069 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 134 treesize of output 118 [2023-02-16 00:51:51,073 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:51,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,083 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 36 treesize of output 35 [2023-02-16 00:51:51,100 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,101 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 146 treesize of output 118 [2023-02-16 00:51:51,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,300 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 29 treesize of output 30 [2023-02-16 00:51:51,310 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,311 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 303 treesize of output 200 [2023-02-16 00:51:51,319 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,319 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 29 treesize of output 30 [2023-02-16 00:51:51,325 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 142 treesize of output 126 [2023-02-16 00:51:51,336 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,337 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 76 treesize of output 72 [2023-02-16 00:51:51,341 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:51,350 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,350 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 [2023-02-16 00:51:51,367 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,367 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 139 treesize of output 115 [2023-02-16 00:51:51,498 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,498 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 59 treesize of output 49 [2023-02-16 00:51:51,502 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:51:51,509 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,509 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 61 treesize of output 54 [2023-02-16 00:51:51,521 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:51:51,521 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 40 treesize of output 32 [2023-02-16 00:51:58,036 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:51:58,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983188905] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 00:51:58,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 00:51:58,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2023-02-16 00:51:58,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538541693] [2023-02-16 00:51:58,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 00:51:58,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-16 00:51:58,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 00:51:58,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-16 00:51:58,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=753, Unknown=5, NotChecked=0, Total=870 [2023-02-16 00:51:58,038 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 30 states, 30 states have (on average 2.1333333333333333) internal successors, (64), 30 states have internal predecessors, (64), 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) [2023-02-16 00:52:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 00:52:00,228 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2023-02-16 00:52:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-16 00:52:00,229 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1333333333333333) internal successors, (64), 30 states have internal predecessors, (64), 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 27 [2023-02-16 00:52:00,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 00:52:00,229 INFO L225 Difference]: With dead ends: 85 [2023-02-16 00:52:00,230 INFO L226 Difference]: Without dead ends: 81 [2023-02-16 00:52:00,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=347, Invalid=2098, Unknown=5, NotChecked=0, Total=2450 [2023-02-16 00:52:00,231 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 95 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 37 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-16 00:52:00,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 239 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 451 Invalid, 6 Unknown, 0 Unchecked, 1.0s Time] [2023-02-16 00:52:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-02-16 00:52:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 61. [2023-02-16 00:52:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.1166666666666667) internal successors, (67), 60 states have internal predecessors, (67), 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) [2023-02-16 00:52:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-02-16 00:52:00,238 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 27 [2023-02-16 00:52:00,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 00:52:00,239 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-02-16 00:52:00,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.1333333333333333) internal successors, (64), 30 states have internal predecessors, (64), 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) [2023-02-16 00:52:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-02-16 00:52:00,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 00:52:00,240 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 00:52:00,240 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 00:52:00,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 00:52:00,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:52:00,449 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 00:52:00,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 00:52:00,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1961532986, now seen corresponding path program 2 times [2023-02-16 00:52:00,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 00:52:00,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800559992] [2023-02-16 00:52:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 00:52:00,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 00:52:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 00:52:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:52:01,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 00:52:01,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800559992] [2023-02-16 00:52:01,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800559992] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 00:52:01,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462383253] [2023-02-16 00:52:01,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 00:52:01,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 00:52:01,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 00:52:01,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 00:52:01,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 00:52:01,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 00:52:01,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 00:52:01,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 69 conjunts are in the unsatisfiable core [2023-02-16 00:52:01,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 00:52:01,165 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 [2023-02-16 00:52:01,218 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-16 00:52:01,219 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 [2023-02-16 00:52:01,287 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 [2023-02-16 00:52:01,291 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 11 treesize of output 7 [2023-02-16 00:52:01,352 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-02-16 00:52:01,352 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 14 treesize of output 20 [2023-02-16 00:52:01,359 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 5 treesize of output 3 [2023-02-16 00:52:01,371 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-02-16 00:52:01,371 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 31 treesize of output 29 [2023-02-16 00:52:01,384 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 [2023-02-16 00:52:01,447 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-02-16 00:52:01,447 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 20 treesize of output 22 [2023-02-16 00:52:01,520 INFO L321 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-02-16 00:52:01,520 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 141 treesize of output 103 [2023-02-16 00:52:01,528 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 41 treesize of output 36 [2023-02-16 00:52:01,533 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 115 treesize of output 93 [2023-02-16 00:52:01,635 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-02-16 00:52:01,635 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 174 treesize of output 145 [2023-02-16 00:52:01,654 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-02-16 00:52:01,654 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 146 treesize of output 134 [2023-02-16 00:52:01,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2023-02-16 00:52:01,774 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-02-16 00:52:01,774 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 60 [2023-02-16 00:52:01,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 26 [2023-02-16 00:52:01,825 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-16 00:52:01,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2023-02-16 00:52:01,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 00:52:01,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 00:52:02,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:02,154 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 75 treesize of output 79 [2023-02-16 00:52:02,178 INFO L321 Elim1Store]: treesize reduction 4, result has 91.7 percent of original size [2023-02-16 00:52:02,179 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 3172 treesize of output 3020 [2023-02-16 00:52:02,196 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:02,197 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 2062 treesize of output 1855 [2023-02-16 00:52:19,307 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 [2023-02-16 00:52:19,481 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 [2023-02-16 00:52:19,637 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 75 treesize of output 55 [2023-02-16 00:52:19,716 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 68 treesize of output 52 [2023-02-16 00:52:19,928 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 60 treesize of output 44 [2023-02-16 00:52:28,817 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 198 DAG size of output: 171 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 00:52:29,479 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,479 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 60 treesize of output 48 [2023-02-16 00:52:29,487 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,487 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 30 treesize of output 31 [2023-02-16 00:52:29,490 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:52:29,499 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,499 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 66 treesize of output 59 [2023-02-16 00:52:29,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 00:52:29,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,507 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 43 treesize of output 42 [2023-02-16 00:52:29,510 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 40 treesize of output 28 [2023-02-16 00:52:29,540 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 40 treesize of output 30 [2023-02-16 00:52:29,582 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,583 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 828 treesize of output 679 [2023-02-16 00:52:29,600 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,601 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 914 treesize of output 855 [2023-02-16 00:52:29,635 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,636 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 2882 treesize of output 2095 [2023-02-16 00:52:29,663 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,664 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 2074 treesize of output 2071 [2023-02-16 00:52:29,676 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 2062 treesize of output 2046 [2023-02-16 00:52:29,715 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,716 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 2845 treesize of output 2784 [2023-02-16 00:52:29,739 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,740 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 2768 treesize of output 2653 [2023-02-16 00:52:29,750 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 2644 treesize of output 2612 [2023-02-16 00:52:29,777 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,778 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 2612 treesize of output 2521 [2023-02-16 00:52:29,804 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,805 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 2512 treesize of output 2465 [2023-02-16 00:52:29,817 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 2456 treesize of output 2448 [2023-02-16 00:52:29,861 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,862 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 2448 treesize of output 2449 [2023-02-16 00:52:29,874 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 2440 treesize of output 2432 [2023-02-16 00:52:29,902 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,904 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 2432 treesize of output 2373 [2023-02-16 00:52:29,916 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 2364 treesize of output 2348 [2023-02-16 00:52:29,943 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:29,944 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 2348 treesize of output 2345 [2023-02-16 00:52:29,957 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 2336 treesize of output 2320 [2023-02-16 00:52:29,970 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 2320 treesize of output 2272 [2023-02-16 00:52:29,999 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,000 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 2272 treesize of output 2253 [2023-02-16 00:52:30,014 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 2244 treesize of output 2228 [2023-02-16 00:52:30,032 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 2228 treesize of output 2212 [2023-02-16 00:52:30,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,061 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 2212 treesize of output 2209 [2023-02-16 00:52:30,091 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,092 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 2200 treesize of output 2189 [2023-02-16 00:52:30,105 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 2180 treesize of output 2148 [2023-02-16 00:52:30,138 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,139 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 2148 treesize of output 2065 [2023-02-16 00:52:30,152 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 2056 treesize of output 2048 [2023-02-16 00:52:30,183 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,184 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 2048 treesize of output 2029 [2023-02-16 00:52:30,212 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,212 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 2020 treesize of output 2009 [2023-02-16 00:52:30,238 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 00:52:30,239 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 2000 treesize of output 1933 [2023-02-16 00:52:30,257 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 1924 treesize of output 1892 [2023-02-16 00:52:30,269 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 1892 treesize of output 1884 [2023-02-16 00:52:30,282 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 1884 treesize of output 1836