./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifncomp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifncomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6359f1f4cb6aed42e13f4959731bd90b4ed828bda061bd22e3b91472b1893854 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:43:13,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:43:13,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:43:13,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:43:13,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:43:13,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:43:13,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:43:13,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:43:13,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:43:13,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:43:13,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:43:13,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:43:13,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:43:13,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:43:13,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:43:13,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:43:13,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:43:13,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:43:13,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:43:13,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:43:13,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:43:13,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:43:13,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:43:13,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:43:13,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:43:13,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:43:13,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:43:13,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:43:13,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:43:13,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:43:13,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:43:13,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:43:13,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:43:13,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:43:13,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:43:13,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:43:13,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:43:13,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:43:13,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:43:13,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:43:13,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:43:13,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:43:13,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:43:13,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:43:13,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:43:13,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:43:13,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:43:13,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:43:13,259 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:43:13,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:43:13,260 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:43:13,260 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:43:13,261 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:43:13,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:43:13,261 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:43:13,262 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:43:13,262 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:43:13,262 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:43:13,262 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:43:13,262 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:43:13,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:43:13,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:43:13,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:43:13,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:43:13,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:43:13,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:43:13,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:43:13,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:43:13,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:43:13,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:43:13,267 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:43:13,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:43:13,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:43:13,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:43:13,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:43:13,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:43:13,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:43:13,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:43:13,268 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:43:13,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:43:13,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:43:13,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:43:13,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:43:13,269 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6359f1f4cb6aed42e13f4959731bd90b4ed828bda061bd22e3b91472b1893854 [2021-11-21 01:43:13,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:43:13,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:43:13,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:43:13,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:43:13,609 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:43:13,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/array-fpi/ifncomp.c [2021-11-21 01:43:13,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/data/a41aa09f2/85612304b1da4022b045e03f352121ad/FLAG2624e07eb [2021-11-21 01:43:14,212 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:43:14,212 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/sv-benchmarks/c/array-fpi/ifncomp.c [2021-11-21 01:43:14,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/data/a41aa09f2/85612304b1da4022b045e03f352121ad/FLAG2624e07eb [2021-11-21 01:43:14,561 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/data/a41aa09f2/85612304b1da4022b045e03f352121ad [2021-11-21 01:43:14,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:43:14,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:43:14,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:43:14,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:43:14,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:43:14,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23727c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14, skipping insertion in model container [2021-11-21 01:43:14,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:43:14,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:43:14,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/sv-benchmarks/c/array-fpi/ifncomp.c[590,603] [2021-11-21 01:43:14,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:43:14,842 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:43:14,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/sv-benchmarks/c/array-fpi/ifncomp.c[590,603] [2021-11-21 01:43:14,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:43:14,877 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:43:14,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14 WrapperNode [2021-11-21 01:43:14,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:43:14,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:43:14,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:43:14,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:43:14,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,919 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2021-11-21 01:43:14,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:43:14,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:43:14,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:43:14,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:43:14,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:43:14,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:43:14,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:43:14,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:43:14,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (1/1) ... [2021-11-21 01:43:14,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:43:15,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:15,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:43:15,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:43:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:43:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:43:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:43:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:43:15,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:43:15,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:43:15,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:43:15,140 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:43:15,142 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:43:15,321 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:43:15,417 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:43:15,417 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-21 01:43:15,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:43:15 BoogieIcfgContainer [2021-11-21 01:43:15,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:43:15,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:43:15,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:43:15,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:43:15,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:43:14" (1/3) ... [2021-11-21 01:43:15,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d85d4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:43:15, skipping insertion in model container [2021-11-21 01:43:15,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:43:14" (2/3) ... [2021-11-21 01:43:15,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d85d4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:43:15, skipping insertion in model container [2021-11-21 01:43:15,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:43:15" (3/3) ... [2021-11-21 01:43:15,428 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncomp.c [2021-11-21 01:43:15,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:43:15,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:43:15,510 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:43:15,518 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:43:15,519 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:43:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:43:15,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:43:15,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:15,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:15,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:15,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:15,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1718302181, now seen corresponding path program 1 times [2021-11-21 01:43:15,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:15,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731005904] [2021-11-21 01:43:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:15,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:43:15,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:15,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731005904] [2021-11-21 01:43:15,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731005904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:15,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:15,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:15,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509785410] [2021-11-21 01:43:15,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:15,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:15,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:15,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:15,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:15,791 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:43:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:15,878 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2021-11-21 01:43:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:43:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:15,888 INFO L225 Difference]: With dead ends: 22 [2021-11-21 01:43:15,888 INFO L226 Difference]: Without dead ends: 11 [2021-11-21 01:43:15,891 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:43:15,897 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:15,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:43:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-21 01:43:15,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-21 01:43:15,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:43:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-11-21 01:43:15,959 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2021-11-21 01:43:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:15,959 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-21 01:43:15,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:43:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-21 01:43:15,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 01:43:15,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:15,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:15,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:43:15,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:15,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash -278726234, now seen corresponding path program 1 times [2021-11-21 01:43:15,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:15,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689276552] [2021-11-21 01:43:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:15,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:16,040 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:43:16,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775737462] [2021-11-21 01:43:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:16,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:16,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:16,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:43:16,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:43:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:16,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:43:16,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:43:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:43:16,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:43:16,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:16,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689276552] [2021-11-21 01:43:16,238 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:43:16,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775737462] [2021-11-21 01:43:16,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775737462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:16,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:16,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:16,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912475608] [2021-11-21 01:43:16,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:16,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:16,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:16,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:16,251 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-21 01:43:16,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:16,308 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-11-21 01:43:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:43:16,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-21 01:43:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:16,310 INFO L225 Difference]: With dead ends: 24 [2021-11-21 01:43:16,310 INFO L226 Difference]: Without dead ends: 18 [2021-11-21 01:43:16,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:16,312 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:16,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 6 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:43:16,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-21 01:43:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2021-11-21 01:43:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:43:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-21 01:43:16,326 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2021-11-21 01:43:16,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:16,326 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-21 01:43:16,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-21 01:43:16,327 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-21 01:43:16,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:43:16,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:16,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:16,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:43:16,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:16,553 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:16,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1790599809, now seen corresponding path program 1 times [2021-11-21 01:43:16,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:16,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153596052] [2021-11-21 01:43:16,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:16,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:16,589 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:43:16,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183201057] [2021-11-21 01:43:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:16,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:16,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:16,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:43:16,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:43:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:16,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 01:43:16,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:43:16,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:16,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:43:16,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:43:18,261 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-21 01:43:18,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 263 treesize of output 738 [2021-11-21 01:43:18,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:18,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:18,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:18,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:18,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:19,142 INFO L354 Elim1Store]: treesize reduction 115, result has 50.6 percent of original size [2021-11-21 01:43:19,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 307 treesize of output 360 [2021-11-21 01:43:23,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:23,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:23,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:23,757 INFO L354 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2021-11-21 01:43:23,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 296 treesize of output 284 [2021-11-21 01:43:26,290 INFO L354 Elim1Store]: treesize reduction 211, result has 19.8 percent of original size [2021-11-21 01:43:26,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 550 treesize of output 440 [2021-11-21 01:43:26,394 INFO L354 Elim1Store]: treesize reduction 211, result has 19.8 percent of original size [2021-11-21 01:43:26,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 513 treesize of output 442 [2021-11-21 01:43:26,535 INFO L354 Elim1Store]: treesize reduction 159, result has 38.6 percent of original size [2021-11-21 01:43:26,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 448 treesize of output 397 [2021-11-21 01:43:27,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:43:27,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153596052] [2021-11-21 01:43:27,452 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:43:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183201057] [2021-11-21 01:43:27,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183201057] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:43:27,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [463373697] [2021-11-21 01:43:27,484 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-21 01:43:27,485 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:43:27,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:43:27,506 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:43:27,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:43:27,761 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-21 01:43:27,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-21 01:43:28,013 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:43:28,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:43:28,176 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:28,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:28,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,351 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-21 01:43:28,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 234 treesize of output 344 [2021-11-21 01:43:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 53 [2021-11-21 01:43:28,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,500 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:43:28,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 209 treesize of output 111 [2021-11-21 01:43:28,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:28,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 37 [2021-11-21 01:43:28,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,666 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:43:28,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 216 treesize of output 116 [2021-11-21 01:43:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 39 [2021-11-21 01:43:28,823 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:28,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:28,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:43:28,856 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:28,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:29,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:29,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,215 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:43:29,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 287 treesize of output 502 [2021-11-21 01:43:29,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,402 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,410 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:29,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 170 treesize of output 108 [2021-11-21 01:43:29,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,590 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,599 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:43:29,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 200 treesize of output 129 [2021-11-21 01:43:29,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,664 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:29,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 368 treesize of output 269 [2021-11-21 01:43:29,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,744 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,750 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:29,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 358 treesize of output 272 [2021-11-21 01:43:29,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:29,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:29,818 INFO L354 Elim1Store]: treesize reduction 25, result has 10.7 percent of original size [2021-11-21 01:43:29,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 161 treesize of output 86 [2021-11-21 01:43:30,016 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:30,032 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:30,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,055 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:43:30,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:43:30,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:30,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:30,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,336 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,410 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:43:30,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:43:30,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,627 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:30,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 96 [2021-11-21 01:43:30,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,678 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:30,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 367 treesize of output 227 [2021-11-21 01:43:30,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:30,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:30,957 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:43:30,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 727 treesize of output 582 [2021-11-21 01:43:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:31,139 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:31,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 470 treesize of output 279 [2021-11-21 01:43:31,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:31,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:31,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:31,215 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:31,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 191 treesize of output 113 [2021-11-21 01:43:31,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:31,379 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:31,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:31,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:31,403 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:43:31,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:43:31,424 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:31,832 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:43:32,074 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:43:32,074 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:43:32,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-21 01:43:32,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925640981] [2021-11-21 01:43:32,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:43:32,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:43:32,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:32,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:43:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:43:32,076 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-11-21 01:43:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:32,199 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2021-11-21 01:43:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:43:32,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 11 [2021-11-21 01:43:32,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:32,201 INFO L225 Difference]: With dead ends: 30 [2021-11-21 01:43:32,201 INFO L226 Difference]: Without dead ends: 28 [2021-11-21 01:43:32,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:43:32,203 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:32,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:43:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-21 01:43:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2021-11-21 01:43:32,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2021-11-21 01:43:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-21 01:43:32,208 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 11 [2021-11-21 01:43:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:32,209 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-21 01:43:32,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-11-21 01:43:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-21 01:43:32,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 01:43:32,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:32,210 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:32,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-21 01:43:32,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:32,411 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:32,411 INFO L85 PathProgramCache]: Analyzing trace with hash 321688004, now seen corresponding path program 2 times [2021-11-21 01:43:32,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:32,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025663669] [2021-11-21 01:43:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:32,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:32,444 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:43:32,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132150361] [2021-11-21 01:43:32,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 01:43:32,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:32,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:32,446 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:43:32,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:43:32,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-21 01:43:32,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:43:32,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:43:32,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:43:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:43:32,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:43:32,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:43:32,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:32,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025663669] [2021-11-21 01:43:32,635 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:43:32,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132150361] [2021-11-21 01:43:32,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132150361] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:43:32,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [28375295] [2021-11-21 01:43:32,637 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-21 01:43:32,648 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:43:32,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:43:32,649 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:43:32,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:43:32,947 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:43:32,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:43:33,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 17 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-21 01:43:33,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:43:33,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:33,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:33,822 INFO L354 Elim1Store]: treesize reduction 266, result has 12.2 percent of original size [2021-11-21 01:43:33,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 548 treesize of output 712 [2021-11-21 01:43:34,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 67 [2021-11-21 01:43:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:34,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 52 [2021-11-21 01:43:34,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 115 [2021-11-21 01:43:34,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:34,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,584 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-21 01:43:34,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 757 treesize of output 665 [2021-11-21 01:43:34,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:34,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:34,653 INFO L354 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2021-11-21 01:43:34,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 642 treesize of output 530 [2021-11-21 01:43:36,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:43:36,165 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:36,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:36,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,486 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:43:36,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 287 treesize of output 502 [2021-11-21 01:43:36,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,659 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:36,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 112 [2021-11-21 01:43:36,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,700 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,721 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:43:36,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 203 treesize of output 132 [2021-11-21 01:43:36,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,784 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:36,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 351 treesize of output 214 [2021-11-21 01:43:36,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,875 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:36,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 98 [2021-11-21 01:43:36,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:36,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:36,957 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:36,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 179 treesize of output 101 [2021-11-21 01:43:37,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:37,144 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:37,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,174 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,180 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:43:37,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:43:37,194 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:37,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:37,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,534 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:43:37,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:43:37,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,762 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:37,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 154 treesize of output 100 [2021-11-21 01:43:37,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,898 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:43:37,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 486 treesize of output 354 [2021-11-21 01:43:37,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:37,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:37,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:38,006 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:38,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 454 treesize of output 320 [2021-11-21 01:43:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:38,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:38,162 INFO L354 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2021-11-21 01:43:38,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 374 treesize of output 295 [2021-11-21 01:43:38,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:38,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:38,262 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:43:38,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 168 treesize of output 70 [2021-11-21 01:43:38,406 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:38,422 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:43:38,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:38,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:38,447 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:43:38,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:43:38,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:38,912 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:43:39,181 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:43:39,181 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:43:39,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-21 01:43:39,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293273594] [2021-11-21 01:43:39,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:43:39,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:43:39,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:39,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:43:39,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:43:39,183 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2021-11-21 01:43:39,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:39,324 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-11-21 01:43:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:43:39,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 12 [2021-11-21 01:43:39,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:39,327 INFO L225 Difference]: With dead ends: 45 [2021-11-21 01:43:39,327 INFO L226 Difference]: Without dead ends: 26 [2021-11-21 01:43:39,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:43:39,329 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:39,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 16 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:43:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-21 01:43:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2021-11-21 01:43:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 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) [2021-11-21 01:43:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-21 01:43:39,333 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 12 [2021-11-21 01:43:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:39,333 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-21 01:43:39,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2021-11-21 01:43:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-21 01:43:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 01:43:39,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:39,334 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:39,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:43:39,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:39,557 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:39,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash 944515365, now seen corresponding path program 3 times [2021-11-21 01:43:39,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:39,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202062514] [2021-11-21 01:43:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:39,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:39,623 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:43:39,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600351757] [2021-11-21 01:43:39,627 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-21 01:43:39,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:39,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:39,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:43:39,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:43:39,965 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-21 01:43:39,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:43:39,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-21 01:43:39,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:43:40,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:43:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:40,152 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:43:40,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2021-11-21 01:43:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:43:40,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:43:41,708 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-21 01:43:41,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 298 treesize of output 773 [2021-11-21 01:43:42,436 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:43:42,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 431 treesize of output 423 [2021-11-21 01:43:42,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:42,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:42,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:42,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 165 [2021-11-21 01:43:43,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:43,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 104 treesize of output 83 [2021-11-21 01:43:44,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,583 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,609 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:43:44,934 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:43:44,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 896 treesize of output 1124 [2021-11-21 01:44:08,218 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:44:08,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 808 treesize of output 792 [2021-11-21 01:44:08,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:08,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 57 [2021-11-21 01:44:08,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:08,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 57 [2021-11-21 01:44:09,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:09,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:09,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:09,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 84 [2021-11-21 01:44:09,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:09,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 57 [2021-11-21 01:44:10,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:10,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 57 [2021-11-21 01:44:11,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:11,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 127 treesize of output 106 [2021-11-21 01:44:12,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,484 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:12,719 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:44:12,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 1680 treesize of output 1562 [2021-11-21 01:44:39,628 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:44:39,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 524 treesize of output 512 [2021-11-21 01:44:39,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 64 [2021-11-21 01:44:39,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:39,972 INFO L354 Elim1Store]: treesize reduction 7, result has 56.3 percent of original size [2021-11-21 01:44:39,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 115 [2021-11-21 01:44:40,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 64 [2021-11-21 01:44:40,800 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,812 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:40,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:40,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 51 [2021-11-21 01:44:41,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:44:41,738 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:44:41,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 868 treesize of output 958 [2021-11-21 01:45:04,555 INFO L354 Elim1Store]: treesize reduction 180, result has 23.4 percent of original size [2021-11-21 01:45:04,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1390 treesize of output 1132 [2021-11-21 01:45:04,581 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:45:04,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1189 treesize of output 1113 [2021-11-21 01:45:06,702 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-21 01:45:06,750 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-21 01:45:06,768 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-21 01:45:06,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:06,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:07,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:07,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:07,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:07,398 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:07,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:07,414 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:45:07,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 93 [2021-11-21 01:45:07,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:07,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 89 treesize of output 69 [2021-11-21 01:45:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:45:07,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:07,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202062514] [2021-11-21 01:45:07,485 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:07,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600351757] [2021-11-21 01:45:07,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600351757] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:45:07,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1844691033] [2021-11-21 01:45:07,489 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-21 01:45:07,490 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:45:07,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:45:07,490 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:45:07,490 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:45:07,695 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-21 01:45:07,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-21 01:45:07,998 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:45:07,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:45:08,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:08,171 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:08,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,288 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-21 01:45:08,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 234 treesize of output 344 [2021-11-21 01:45:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 50 [2021-11-21 01:45:08,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,427 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:45:08,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 276 treesize of output 147 [2021-11-21 01:45:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 49 [2021-11-21 01:45:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,559 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:45:08,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 207 treesize of output 152 [2021-11-21 01:45:08,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:08,622 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:45:08,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 55 [2021-11-21 01:45:08,822 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:45:08,854 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:08,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:08,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:09,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,146 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:45:09,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 287 treesize of output 502 [2021-11-21 01:45:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,393 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:45:09,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 203 treesize of output 132 [2021-11-21 01:45:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,484 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:09,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 290 treesize of output 175 [2021-11-21 01:45:09,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,612 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:09,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 226 treesize of output 138 [2021-11-21 01:45:09,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,734 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,744 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:09,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 414 treesize of output 267 [2021-11-21 01:45:09,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,827 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:09,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 161 treesize of output 83 [2021-11-21 01:45:09,949 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:09,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:09,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:09,970 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:09,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:45:09,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:10,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:10,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,240 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,309 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:45:10,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:45:10,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,603 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,609 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,624 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:10,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 66 [2021-11-21 01:45:10,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,929 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:10,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 154 treesize of output 92 [2021-11-21 01:45:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,093 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:45:11,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 183 treesize of output 112 [2021-11-21 01:45:11,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,139 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:11,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 482 treesize of output 324 [2021-11-21 01:45:11,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,229 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,262 INFO L354 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2021-11-21 01:45:11,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 365 treesize of output 199 [2021-11-21 01:45:11,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:11,530 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:11,563 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:11,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:45:11,883 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:45:12,139 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:45:12,140 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:45:12,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 15 [2021-11-21 01:45:12,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320914589] [2021-11-21 01:45:12,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:45:12,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-21 01:45:12,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:12,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-21 01:45:12,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-11-21 01:45:12,141 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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) [2021-11-21 01:45:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:12,692 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-21 01:45:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 01:45:12,692 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-21 01:45:12,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:12,693 INFO L225 Difference]: With dead ends: 31 [2021-11-21 01:45:12,693 INFO L226 Difference]: Without dead ends: 29 [2021-11-21 01:45:12,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2021-11-21 01:45:12,694 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:12,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 124 Invalid, 0 Unknown, 14 Unchecked, 0.3s Time] [2021-11-21 01:45:12,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-21 01:45:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-11-21 01:45:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2021-11-21 01:45:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-21 01:45:12,703 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 14 [2021-11-21 01:45:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:12,703 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-21 01:45:12,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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) [2021-11-21 01:45:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-21 01:45:12,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 01:45:12,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:12,705 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:12,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-21 01:45:12,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:12,909 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:12,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:12,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1779510269, now seen corresponding path program 4 times [2021-11-21 01:45:12,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:12,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315951690] [2021-11-21 01:45:12,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:12,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:12,978 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:12,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955362055] [2021-11-21 01:45:12,984 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-21 01:45:12,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:12,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:12,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:12,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:45:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:13,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:45:13,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:45:13,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:45:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:45:13,162 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:13,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315951690] [2021-11-21 01:45:13,162 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:13,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955362055] [2021-11-21 01:45:13,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955362055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:45:13,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1596168281] [2021-11-21 01:45:13,165 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-21 01:45:13,165 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:45:13,166 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:45:13,166 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:45:13,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:45:13,401 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-21 01:45:13,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-21 01:45:13,660 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:45:13,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:45:13,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:13,806 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:13,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:13,923 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-21 01:45:13,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 234 treesize of output 344 [2021-11-21 01:45:14,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 50 [2021-11-21 01:45:14,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,095 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:45:14,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 70 [2021-11-21 01:45:14,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 53 [2021-11-21 01:45:14,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 37 [2021-11-21 01:45:14,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:14,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 35 [2021-11-21 01:45:14,345 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:14,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:14,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:45:14,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:14,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:14,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:14,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:14,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:14,724 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:45:14,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:45:15,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,060 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:15,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 112 [2021-11-21 01:45:15,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,280 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:45:15,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 200 treesize of output 129 [2021-11-21 01:45:15,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,356 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:15,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 422 treesize of output 307 [2021-11-21 01:45:15,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,454 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:15,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 358 treesize of output 220 [2021-11-21 01:45:15,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,508 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,509 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,519 INFO L354 Elim1Store]: treesize reduction 25, result has 10.7 percent of original size [2021-11-21 01:45:15,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 161 treesize of output 86 [2021-11-21 01:45:15,668 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:15,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,690 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:15,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:45:15,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:15,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:15,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:15,981 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:45:15,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:45:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,209 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:16,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 82 [2021-11-21 01:45:16,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,379 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:45:16,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 199 treesize of output 128 [2021-11-21 01:45:16,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,527 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,540 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:16,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 286 treesize of output 176 [2021-11-21 01:45:16,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,794 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,806 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:16,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 605 treesize of output 396 [2021-11-21 01:45:16,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,999 INFO L354 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2021-11-21 01:45:16,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 401 treesize of output 224 [2021-11-21 01:45:17,208 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:17,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:17,237 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:17,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:45:17,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:17,578 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:45:17,788 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:45:17,789 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:45:17,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-21 01:45:17,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142421364] [2021-11-21 01:45:17,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:45:17,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:45:17,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:17,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:45:17,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:45:17,790 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2021-11-21 01:45:18,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:18,220 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2021-11-21 01:45:18,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 01:45:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-21 01:45:18,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:18,223 INFO L225 Difference]: With dead ends: 67 [2021-11-21 01:45:18,223 INFO L226 Difference]: Without dead ends: 56 [2021-11-21 01:45:18,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2021-11-21 01:45:18,225 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 52 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:18,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 57 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:45:18,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-21 01:45:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 32. [2021-11-21 01:45:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 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) [2021-11-21 01:45:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2021-11-21 01:45:18,234 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 16 [2021-11-21 01:45:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:18,235 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-11-21 01:45:18,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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) [2021-11-21 01:45:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-11-21 01:45:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 01:45:18,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:18,236 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:18,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:18,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 01:45:18,454 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:18,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:18,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1303797829, now seen corresponding path program 5 times [2021-11-21 01:45:18,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:18,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694430703] [2021-11-21 01:45:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:18,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:18,481 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:18,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093152509] [2021-11-21 01:45:18,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 01:45:18,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:18,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:18,483 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:18,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:45:18,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-21 01:45:18,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:45:18,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:45:18,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:45:18,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:45:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:45:19,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:19,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694430703] [2021-11-21 01:45:19,033 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:19,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093152509] [2021-11-21 01:45:19,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093152509] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:45:19,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1398948271] [2021-11-21 01:45:19,039 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-21 01:45:19,040 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:45:19,041 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:45:19,041 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:45:19,042 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:45:19,270 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:45:19,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:45:19,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 17 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-21 01:45:19,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:45:19,795 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:19,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:19,902 INFO L354 Elim1Store]: treesize reduction 266, result has 12.2 percent of original size [2021-11-21 01:45:19,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 545 treesize of output 709 [2021-11-21 01:45:20,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 63 [2021-11-21 01:45:20,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,335 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:20,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 49 [2021-11-21 01:45:20,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,599 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:45:20,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 239 [2021-11-21 01:45:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:20,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:20,790 INFO L354 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2021-11-21 01:45:20,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 641 treesize of output 553 [2021-11-21 01:45:21,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:21,662 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-21 01:45:21,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 485 treesize of output 354 [2021-11-21 01:45:22,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:22,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:45:22,333 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:22,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:22,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:22,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:22,681 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:45:22,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:45:22,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:22,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:22,902 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:22,903 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:22,913 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:22,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 66 [2021-11-21 01:45:23,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,174 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,184 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:23,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 154 treesize of output 92 [2021-11-21 01:45:23,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,335 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:45:23,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 519 treesize of output 392 [2021-11-21 01:45:23,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,484 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:23,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 480 treesize of output 331 [2021-11-21 01:45:23,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,602 INFO L354 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2021-11-21 01:45:23,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 340 treesize of output 189 [2021-11-21 01:45:23,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:23,823 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:23,856 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:23,863 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:23,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:45:23,888 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:24,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:24,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,264 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:45:24,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 287 treesize of output 502 [2021-11-21 01:45:24,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,435 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:24,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 156 treesize of output 94 [2021-11-21 01:45:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,491 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:45:24,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 381 treesize of output 223 [2021-11-21 01:45:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,593 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:24,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 231 treesize of output 116 [2021-11-21 01:45:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,636 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:24,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 172 treesize of output 74 [2021-11-21 01:45:24,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,746 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:24,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 82 [2021-11-21 01:45:24,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:24,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:24,872 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:24,877 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:24,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:45:24,894 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:45:25,202 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:45:25,434 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:45:25,434 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:45:25,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-11-21 01:45:25,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914040796] [2021-11-21 01:45:25,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:45:25,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 01:45:25,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 01:45:25,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2021-11-21 01:45:25,436 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 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) [2021-11-21 01:45:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:25,898 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2021-11-21 01:45:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:45:25,899 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-21 01:45:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:25,900 INFO L225 Difference]: With dead ends: 98 [2021-11-21 01:45:25,900 INFO L226 Difference]: Without dead ends: 77 [2021-11-21 01:45:25,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2021-11-21 01:45:25,902 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 106 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:25,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 58 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:45:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-21 01:45:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 46. [2021-11-21 01:45:25,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 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) [2021-11-21 01:45:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2021-11-21 01:45:25,913 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 16 [2021-11-21 01:45:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:25,913 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2021-11-21 01:45:25,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 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) [2021-11-21 01:45:25,914 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2021-11-21 01:45:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 01:45:25,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:25,915 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:25,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:26,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:26,115 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:26,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1036058177, now seen corresponding path program 6 times [2021-11-21 01:45:26,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:26,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289675389] [2021-11-21 01:45:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:26,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:26,145 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:26,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815537287] [2021-11-21 01:45:26,145 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-21 01:45:26,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:26,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:26,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:45:27,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-21 01:45:27,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:45:27,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-21 01:45:27,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:27,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:27,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:27,407 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:45:27,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2021-11-21 01:45:27,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:27,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:27,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:27,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:27,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:27,448 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:45:27,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 52 [2021-11-21 01:45:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 01:45:28,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:45:58,933 WARN L227 SmtUtils]: Spent 28.43s on a formula simplification. DAG size of input: 254 DAG size of output: 151 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:45:58,934 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-21 01:45:58,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 562 treesize of output 1037 [2021-11-21 01:46:01,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 81 [2021-11-21 01:46:01,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:01,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 81 [2021-11-21 01:46:03,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,653 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 80 [2021-11-21 01:46:03,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,862 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:03,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 80 [2021-11-21 01:46:05,298 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:05,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:05,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:05,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:06,016 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-21 01:46:06,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 112 [2021-11-21 01:46:07,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:07,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:07,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:07,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:07,255 INFO L244 Elim1Store]: Index analysis took 152 ms [2021-11-21 01:46:08,173 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-21 01:46:08,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 112 [2021-11-21 01:46:24,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:24,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:24,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:28,896 INFO L354 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2021-11-21 01:46:28,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 510 treesize of output 506 [2021-11-21 01:46:30,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 80 [2021-11-21 01:46:30,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 81 [2021-11-21 01:46:30,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:30,514 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-21 01:46:30,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 112 [2021-11-21 01:46:30,720 INFO L354 Elim1Store]: treesize reduction 211, result has 19.8 percent of original size [2021-11-21 01:46:30,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 553 treesize of output 410 [2021-11-21 01:46:30,828 INFO L354 Elim1Store]: treesize reduction 207, result has 20.1 percent of original size [2021-11-21 01:46:30,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 513 treesize of output 425 [2021-11-21 01:46:30,998 INFO L354 Elim1Store]: treesize reduction 163, result has 38.0 percent of original size [2021-11-21 01:46:30,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 431 treesize of output 397 [2021-11-21 01:46:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:46:31,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:46:31,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289675389] [2021-11-21 01:46:31,625 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:46:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815537287] [2021-11-21 01:46:31,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815537287] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:46:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1500960117] [2021-11-21 01:46:31,627 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-21 01:46:31,627 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:46:31,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:46:31,627 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:46:31,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:46:31,865 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-21 01:46:31,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-21 01:46:32,158 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:46:32,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:46:32,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,484 INFO L354 Elim1Store]: treesize reduction 139, result has 9.7 percent of original size [2021-11-21 01:46:32,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 234 treesize of output 344 [2021-11-21 01:46:32,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 49 [2021-11-21 01:46:32,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,781 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:46:32,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 57 [2021-11-21 01:46:32,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:32,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 100 [2021-11-21 01:46:32,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:32,945 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:46:32,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 312 treesize of output 273 [2021-11-21 01:46:33,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,110 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:46:33,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 209 treesize of output 134 [2021-11-21 01:46:33,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:33,302 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:46:33,315 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:46:33,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:46:33,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:33,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:33,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:33,592 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:46:33,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:46:33,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:33,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:33,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:33,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:33,864 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:46:33,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 66 [2021-11-21 01:46:34,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,060 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:46:34,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 183 treesize of output 112 [2021-11-21 01:46:34,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,143 INFO L354 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2021-11-21 01:46:34,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 376 treesize of output 284 [2021-11-21 01:46:34,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,311 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:46:34,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 289 treesize of output 175 [2021-11-21 01:46:34,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,534 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:46:34,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 430 treesize of output 246 [2021-11-21 01:46:34,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:34,703 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:46:34,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,731 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:46:34,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:46:34,745 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:46:34,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:34,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:34,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:34,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,059 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:46:35,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 284 treesize of output 499 [2021-11-21 01:46:35,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,288 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:46:35,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 99 [2021-11-21 01:46:35,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,540 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:46:35,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 200 treesize of output 129 [2021-11-21 01:46:35,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,603 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,618 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:46:35,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 401 treesize of output 303 [2021-11-21 01:46:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,755 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:46:35,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 187 treesize of output 112 [2021-11-21 01:46:35,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,856 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:35,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:35,894 INFO L354 Elim1Store]: treesize reduction 39, result has 26.4 percent of original size [2021-11-21 01:46:35,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 363 treesize of output 197 [2021-11-21 01:46:36,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:36,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:36,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:36,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:36,108 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:46:36,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:46:36,120 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:46:36,138 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:46:36,480 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:46:36,762 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:46:36,762 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:46:36,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2021-11-21 01:46:36,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307740825] [2021-11-21 01:46:36,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:46:36,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-21 01:46:36,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:46:36,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-21 01:46:36,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=299, Unknown=1, NotChecked=0, Total=380 [2021-11-21 01:46:36,764 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 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) [2021-11-21 01:46:38,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:46:38,012 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2021-11-21 01:46:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 01:46:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 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) Word has length 17 [2021-11-21 01:46:38,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:46:38,013 INFO L225 Difference]: With dead ends: 58 [2021-11-21 01:46:38,013 INFO L226 Difference]: Without dead ends: 56 [2021-11-21 01:46:38,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=108, Invalid=443, Unknown=1, NotChecked=0, Total=552 [2021-11-21 01:46:38,015 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:46:38,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 72 Invalid, 0 Unknown, 21 Unchecked, 0.2s Time] [2021-11-21 01:46:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-21 01:46:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2021-11-21 01:46:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 48 states have internal predecessors, (58), 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) [2021-11-21 01:46:38,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2021-11-21 01:46:38,038 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 17 [2021-11-21 01:46:38,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:46:38,038 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2021-11-21 01:46:38,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 15 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) [2021-11-21 01:46:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2021-11-21 01:46:38,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 01:46:38,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:46:38,039 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:46:38,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:46:38,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:46:38,240 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:46:38,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:46:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1731625634, now seen corresponding path program 1 times [2021-11-21 01:46:38,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:46:38,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851694838] [2021-11-21 01:46:38,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:38,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:46:38,260 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:46:38,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086088566] [2021-11-21 01:46:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:38,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:46:38,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:46:38,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:46:38,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:46:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:46:38,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-21 01:46:38,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:46:38,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 12 [2021-11-21 01:46:38,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:46:38,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,620 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:46:38,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 33 [2021-11-21 01:46:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:38,700 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 01:46:38,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 43 [2021-11-21 01:46:39,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:39,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:39,263 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-21 01:46:39,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 59 treesize of output 59 [2021-11-21 01:46:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:46:39,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:46:49,141 WARN L227 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 254 DAG size of output: 151 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:46:49,142 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-21 01:46:49,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 389 treesize of output 864 [2021-11-21 01:46:50,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,298 INFO L354 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2021-11-21 01:46:50,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 153 treesize of output 153 [2021-11-21 01:46:50,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:50,731 INFO L354 Elim1Store]: treesize reduction 7, result has 56.3 percent of original size [2021-11-21 01:46:50,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 77 [2021-11-21 01:46:51,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:51,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:51,675 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:51,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 52 [2021-11-21 01:46:51,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:51,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:51,883 INFO L354 Elim1Store]: treesize reduction 82, result has 15.5 percent of original size [2021-11-21 01:46:51,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 125 treesize of output 98 [2021-11-21 01:46:52,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:52,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:52,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:52,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:52,457 INFO L354 Elim1Store]: treesize reduction 34, result has 20.9 percent of original size [2021-11-21 01:46:52,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 78 [2021-11-21 01:46:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:53,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 53 [2021-11-21 01:46:53,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,831 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,832 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:53,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 79 [2021-11-21 01:46:54,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 103 [2021-11-21 01:46:54,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,402 INFO L354 Elim1Store]: treesize reduction 141, result has 15.1 percent of original size [2021-11-21 01:46:54,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 158 [2021-11-21 01:46:54,601 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,694 INFO L354 Elim1Store]: treesize reduction 141, result has 15.1 percent of original size [2021-11-21 01:46:54,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 170 treesize of output 134 [2021-11-21 01:46:54,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:54,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 78 [2021-11-21 01:46:55,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:55,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 158 [2021-11-21 01:46:56,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,019 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:46:56,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 158 [2021-11-21 01:46:56,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,235 INFO L354 Elim1Store]: treesize reduction 140, result has 15.7 percent of original size [2021-11-21 01:46:56,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 219 treesize of output 184 [2021-11-21 01:46:56,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 84 [2021-11-21 01:46:56,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:56,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,006 INFO L354 Elim1Store]: treesize reduction 133, result has 12.5 percent of original size [2021-11-21 01:46:57,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 136 [2021-11-21 01:46:57,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 96 [2021-11-21 01:46:57,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,254 INFO L354 Elim1Store]: treesize reduction 140, result has 15.7 percent of original size [2021-11-21 01:46:57,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 188 treesize of output 153 [2021-11-21 01:46:57,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,554 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 97 [2021-11-21 01:46:57,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:57,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 85 [2021-11-21 01:46:58,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 90 [2021-11-21 01:46:58,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 89 [2021-11-21 01:46:58,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,247 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,248 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 102 [2021-11-21 01:46:58,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,374 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 101 [2021-11-21 01:46:58,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:58,548 INFO L354 Elim1Store]: treesize reduction 164, result has 20.0 percent of original size [2021-11-21 01:46:58,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 197 treesize of output 172 [2021-11-21 01:46:59,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:59,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:59,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:59,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:59,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:46:59,409 INFO L354 Elim1Store]: treesize reduction 151, result has 0.7 percent of original size [2021-11-21 01:46:59,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 180 treesize of output 1 [2021-11-21 01:47:00,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,167 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:00,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:11,412 WARN L227 SmtUtils]: Spent 11.22s on a formula simplification. DAG size of input: 99 DAG size of output: 83 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:47:11,413 INFO L354 Elim1Store]: treesize reduction 143, result has 64.8 percent of original size [2021-11-21 01:47:11,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 1061 treesize of output 1181 [2021-11-21 01:47:21,954 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,958 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,958 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:21,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:47:28,490 WARN L227 SmtUtils]: Spent 6.49s on a formula simplification. DAG size of input: 81 DAG size of output: 65 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:47:28,491 INFO L354 Elim1Store]: treesize reduction 130, result has 59.0 percent of original size [2021-11-21 01:47:28,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 1168 treesize of output 1051 [2021-11-21 01:51:23,550 INFO L354 Elim1Store]: treesize reduction 337, result has 48.0 percent of original size [2021-11-21 01:51:23,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 48376 treesize of output 37408 [2021-11-21 01:53:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:53:27,258 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:27,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851694838] [2021-11-21 01:53:27,258 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:53:27,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086088566] [2021-11-21 01:53:27,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086088566] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:53:27,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [480167013] [2021-11-21 01:53:27,261 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-21 01:53:27,261 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:53:27,261 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:53:27,261 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:53:27,262 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:53:27,527 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-21 01:53:27,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-21 01:53:27,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-21 01:53:27,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:53:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:28,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,645 INFO L354 Elim1Store]: treesize reduction 266, result has 12.2 percent of original size [2021-11-21 01:53:28,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 549 treesize of output 713 [2021-11-21 01:53:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 66 [2021-11-21 01:53:28,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:28,953 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-21 01:53:28,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 445 treesize of output 392 [2021-11-21 01:53:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,311 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:31,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:31,337 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-11-21 01:53:31,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 493 treesize of output 439 [2021-11-21 01:53:33,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:33,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:33,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:33,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:33,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 72 [2021-11-21 01:53:34,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:34,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:34,321 INFO L354 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2021-11-21 01:53:34,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 478 treesize of output 388 [2021-11-21 01:53:36,275 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:36,305 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:36,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 33 [2021-11-21 01:53:36,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:53:36,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:53:36,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:36,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:36,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:36,704 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:53:36,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 287 treesize of output 502 [2021-11-21 01:53:37,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,102 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:37,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 174 treesize of output 112 [2021-11-21 01:53:37,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,438 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-21 01:53:37,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,461 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,490 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,525 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:53:37,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 185 treesize of output 118 [2021-11-21 01:53:37,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,597 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:37,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 586 treesize of output 488 [2021-11-21 01:53:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,667 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:53:37,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 364 treesize of output 184 [2021-11-21 01:53:37,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:37,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:37,832 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:37,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 161 treesize of output 83 [2021-11-21 01:53:38,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:53:38,151 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:38,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:38,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,231 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:38,243 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:53:38,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:53:38,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:53:38,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:38,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:38,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:38,743 INFO L354 Elim1Store]: treesize reduction 222, result has 12.3 percent of original size [2021-11-21 01:53:38,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 287 treesize of output 502 [2021-11-21 01:53:39,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,064 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:39,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 156 treesize of output 94 [2021-11-21 01:53:39,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,212 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-21 01:53:39,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,307 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-21 01:53:39,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 279 treesize of output 160 [2021-11-21 01:53:39,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,566 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:39,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 173 treesize of output 110 [2021-11-21 01:53:39,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,696 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:39,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 74 [2021-11-21 01:53:39,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:39,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:39,852 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:53:39,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 136 treesize of output 82 [2021-11-21 01:53:40,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:53:40,195 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:40,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:40,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:40,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:40,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:40,290 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:53:40,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 48 [2021-11-21 01:53:43,000 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:53:43,810 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:53:43,810 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:53:43,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-11-21 01:53:43,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310025535] [2021-11-21 01:53:43,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-21 01:53:43,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-21 01:53:43,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:43,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-21 01:53:43,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2021-11-21 01:53:43,813 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 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) [2021-11-21 01:53:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:44,247 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-11-21 01:53:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:53:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-21 01:53:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:44,249 INFO L225 Difference]: With dead ends: 54 [2021-11-21 01:53:44,249 INFO L226 Difference]: Without dead ends: 41 [2021-11-21 01:53:44,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2021-11-21 01:53:44,251 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:44,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 23 Unchecked, 0.2s Time] [2021-11-21 01:53:44,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-21 01:53:44,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-21 01:53:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.225) internal successors, (49), 40 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) [2021-11-21 01:53:44,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2021-11-21 01:53:44,261 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 17 [2021-11-21 01:53:44,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:44,261 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2021-11-21 01:53:44,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 21 states have internal predecessors, (30), 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) [2021-11-21 01:53:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2021-11-21 01:53:44,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:53:44,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:44,263 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:44,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-21 01:53:44,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-21 01:53:44,489 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:53:44,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:44,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1569018936, now seen corresponding path program 2 times [2021-11-21 01:53:44,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:44,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657685029] [2021-11-21 01:53:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:44,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:44,514 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:53:44,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557390390] [2021-11-21 01:53:44,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 01:53:44,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:53:44,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:53:44,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:53:44,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7c98a2-1262-481b-9f47-bcbfb1eefcfd/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 01:53:45,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-21 01:53:45,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:53:45,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-21 01:53:45,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:53:45,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 12 [2021-11-21 01:53:46,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:53:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,217 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:53:46,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 29 [2021-11-21 01:53:46,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:46,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:46,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:46,967 INFO L354 Elim1Store]: treesize reduction 398, result has 26.6 percent of original size [2021-11-21 01:53:46,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 26 case distinctions, treesize of input 285 treesize of output 637 [2021-11-21 01:53:47,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:47,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:47,771 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-21 01:53:47,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 158 treesize of output 97 [2021-11-21 01:53:48,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:48,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:48,640 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:53:48,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 117 [2021-11-21 01:53:48,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:48,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:48,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:48,964 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:53:48,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 117 [2021-11-21 01:53:49,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 141 [2021-11-21 01:53:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,961 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-21 01:53:49,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:49,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,000 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:50,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,006 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:50,053 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-21 01:53:50,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 217 treesize of output 131 [2021-11-21 01:53:50,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:50,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:50,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:50,442 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:53:50,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 131 [2021-11-21 01:53:51,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,990 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:51,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:51,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:53:52,011 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:53:52,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 206 treesize of output 124 [2021-11-21 01:53:52,068 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:54:02,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:02,279 INFO L354 Elim1Store]: treesize reduction 126, result has 15.4 percent of original size [2021-11-21 01:54:02,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 304 treesize of output 209 [2021-11-21 01:54:02,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:02,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:02,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:02,655 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-21 01:54:02,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 540 treesize of output 423 [2021-11-21 01:54:03,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:03,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:03,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:03,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 164 [2021-11-21 01:54:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:04,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:04,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:04,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:04,305 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:54:04,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 288 treesize of output 171 [2021-11-21 01:54:07,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:07,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:07,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:07,937 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-21 01:54:07,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 855 treesize of output 627 [2021-11-21 01:54:08,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:08,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:08,465 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:54:08,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 478 treesize of output 339 [2021-11-21 01:54:09,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:09,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 467 treesize of output 332 [2021-11-21 01:54:09,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:09,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:09,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:09,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 844 treesize of output 616 [2021-11-21 01:54:10,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:10,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 92 [2021-11-21 01:54:11,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:11,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:11,093 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-21 01:54:11,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 261 treesize of output 153 [2021-11-21 01:54:11,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:11,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:11,212 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-21 01:54:11,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 467 treesize of output 254 [2021-11-21 01:54:11,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:11,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:11,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:11,528 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:54:11,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 242 treesize of output 111 [2021-11-21 01:54:14,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:14,623 INFO L354 Elim1Store]: treesize reduction 302, result has 6.5 percent of original size [2021-11-21 01:54:14,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 85 treesize of output 99 [2021-11-21 01:54:16,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:16,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:16,780 INFO L354 Elim1Store]: treesize reduction 506, result has 7.5 percent of original size [2021-11-21 01:54:16,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 104 treesize of output 101 [2021-11-21 01:54:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:18,296 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:21,203 INFO L354 Elim1Store]: treesize reduction 3347, result has 15.5 percent of original size [2021-11-21 01:54:21,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 5 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 16 new quantified variables, introduced 107 case distinctions, treesize of input 342 treesize of output 818 [2021-11-21 01:54:21,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:21,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:21,977 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:21,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 316 treesize of output 204 [2021-11-21 01:54:22,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:22,218 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:22,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 287 treesize of output 179 [2021-11-21 01:54:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:22,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:22,520 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:22,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 298 treesize of output 186 [2021-11-21 01:54:23,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:23,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:23,435 INFO L354 Elim1Store]: treesize reduction 140, result has 0.7 percent of original size [2021-11-21 01:54:23,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 18 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 298 treesize of output 186 [2021-11-21 01:54:24,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:24,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:24,892 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:24,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 276 treesize of output 172 [2021-11-21 01:54:26,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:26,548 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:26,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 19 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 372 treesize of output 237 [2021-11-21 01:54:26,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:26,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,790 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:26,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:26,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:26,820 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:26,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 12 disjoint index pairs (out of 55 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 360 treesize of output 227 [2021-11-21 01:54:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:27,175 INFO L354 Elim1Store]: treesize reduction 156, result has 0.6 percent of original size [2021-11-21 01:54:27,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 17 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 16 case distinctions, treesize of input 375 treesize of output 236 [2021-11-21 01:54:27,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:27,792 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:27,840 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:27,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 718 treesize of output 565 [2021-11-21 01:54:41,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:41,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:41,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:41,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:41,683 INFO L354 Elim1Store]: treesize reduction 402, result has 0.2 percent of original size [2021-11-21 01:54:41,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 26 case distinctions, treesize of input 481 treesize of output 289 [2021-11-21 01:54:42,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:42,319 INFO L354 Elim1Store]: treesize reduction 370, result has 0.3 percent of original size [2021-11-21 01:54:42,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 7 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 26 case distinctions, treesize of input 586 treesize of output 365 [2021-11-21 01:54:42,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:42,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:42,979 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:42,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 254 treesize of output 148 [2021-11-21 01:54:43,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:54:43,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:54:43,207 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:54:43,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 23 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 356 treesize of output 222 [2021-11-21 01:55:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:01,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:01,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:01,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:02,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:02,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:02,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:02,042 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-21 01:55:02,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 15 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 40 case distinctions, treesize of input 234 treesize of output 144 [2021-11-21 01:55:03,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:03,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:03,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:03,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:03,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:03,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:03,598 INFO L354 Elim1Store]: treesize reduction 787, result has 0.1 percent of original size [2021-11-21 01:55:03,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 4 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 54 case distinctions, treesize of input 547 treesize of output 414 [2021-11-21 01:55:04,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:04,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:04,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:04,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,506 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:04,526 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-21 01:55:04,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 15 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 40 case distinctions, treesize of input 379 treesize of output 269 [2021-11-21 01:55:04,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,760 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:04,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:04,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:04,843 INFO L354 Elim1Store]: treesize reduction 787, result has 0.1 percent of original size [2021-11-21 01:55:04,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 4 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 54 case distinctions, treesize of input 554 treesize of output 425 [2021-11-21 01:55:10,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:10,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:10,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:10,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:10,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:10,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:10,908 INFO L354 Elim1Store]: treesize reduction 592, result has 0.2 percent of original size [2021-11-21 01:55:10,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 370 treesize of output 225 [2021-11-21 01:55:11,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:11,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:11,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:11,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:11,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:11,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:11,578 INFO L354 Elim1Store]: treesize reduction 664, result has 0.2 percent of original size [2021-11-21 01:55:11,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 338 treesize of output 221 [2021-11-21 01:55:12,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,244 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:12,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:12,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,256 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:12,276 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-21 01:55:12,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 14 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 40 case distinctions, treesize of input 230 treesize of output 138 [2021-11-21 01:55:12,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:12,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:12,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:55:12,458 INFO L354 Elim1Store]: treesize reduction 592, result has 0.2 percent of original size [2021-11-21 01:55:12,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 4 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 326 treesize of output 223