./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifncomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V --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-aef121e [2021-11-23 02:04:52,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:04:52,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:04:52,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:04:52,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:04:52,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:04:52,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:04:52,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:04:52,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:04:52,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:04:52,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:04:52,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:04:52,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:04:52,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:04:52,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:04:52,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:04:52,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:04:52,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:04:52,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:04:52,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:04:52,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:04:52,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:04:52,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:04:52,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:04:52,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:04:52,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:04:52,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:04:52,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:04:52,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:04:52,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:04:52,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:04:52,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:04:52,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:04:52,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:04:52,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:04:52,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:04:52,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:04:52,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:04:52,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:04:52,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:04:52,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:04:52,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:04:52,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:04:52,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:04:52,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:04:52,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:04:52,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:04:52,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:04:52,712 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:04:52,713 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:04:52,713 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:04:52,713 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:04:52,714 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:04:52,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:04:52,715 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:04:52,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:04:52,715 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:04:52,716 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:04:52,716 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:04:52,716 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:04:52,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:04:52,718 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:04:52,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:04:52,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:04:52,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:04:52,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:04:52,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:04:52,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:04:52,721 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:04:52,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:04:52,721 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:04:52,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:04:52,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:04:52,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:04:52,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:04:52,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:04:52,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:04:52,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:04:52,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:04:52,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:04:52,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:04:52,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:04:52,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:04:52,725 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_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6359f1f4cb6aed42e13f4959731bd90b4ed828bda061bd22e3b91472b1893854 [2021-11-23 02:04:52,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:04:53,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:04:53,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:04:53,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:04:53,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:04:53,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/array-fpi/ifncomp.c [2021-11-23 02:04:53,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/data/bc59191b2/82b05f8534d64548b5b48a967f8dd61e/FLAG3b03c57c3 [2021-11-23 02:04:53,679 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:04:53,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/sv-benchmarks/c/array-fpi/ifncomp.c [2021-11-23 02:04:53,693 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/data/bc59191b2/82b05f8534d64548b5b48a967f8dd61e/FLAG3b03c57c3 [2021-11-23 02:04:54,032 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/data/bc59191b2/82b05f8534d64548b5b48a967f8dd61e [2021-11-23 02:04:54,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:04:54,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:04:54,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:04:54,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:04:54,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:04:54,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ef5b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54, skipping insertion in model container [2021-11-23 02:04:54,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:04:54,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:04:54,268 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_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/sv-benchmarks/c/array-fpi/ifncomp.c[590,603] [2021-11-23 02:04:54,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:04:54,300 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:04:54,313 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_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/sv-benchmarks/c/array-fpi/ifncomp.c[590,603] [2021-11-23 02:04:54,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:04:54,338 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:04:54,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54 WrapperNode [2021-11-23 02:04:54,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:04:54,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:04:54,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:04:54,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:04:54,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,401 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2021-11-23 02:04:54,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:04:54,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:04:54,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:04:54,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:04:54,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:04:54,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:04:54,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:04:54,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:04:54,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 02:04:54,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:04:54,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:04:54,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:04:54,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:04:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:04:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:04:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:04:54,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:04:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:04:54,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:04:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:04:54,636 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:04:54,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:04:54,896 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:04:54,960 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:04:54,960 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 02:04:54,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:54 BoogieIcfgContainer [2021-11-23 02:04:54,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:04:54,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:04:54,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:04:54,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:04:54,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:54" (1/3) ... [2021-11-23 02:04:54,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3ba0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:54, skipping insertion in model container [2021-11-23 02:04:54,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (2/3) ... [2021-11-23 02:04:54,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f3ba0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:54, skipping insertion in model container [2021-11-23 02:04:54,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:54" (3/3) ... [2021-11-23 02:04:54,978 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncomp.c [2021-11-23 02:04:54,984 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:04:54,984 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:04:55,051 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:04:55,062 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 [2021-11-23 02:04:55,063 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:04:55,088 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) [2021-11-23 02:04:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:04:55,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:55,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:55,098 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:55,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:55,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1718302181, now seen corresponding path program 1 times [2021-11-23 02:04:55,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:55,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436494403] [2021-11-23 02:04:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:55,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:04:55,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:55,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436494403] [2021-11-23 02:04:55,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436494403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:55,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:55,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:55,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894831530] [2021-11-23 02:04:55,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:55,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:55,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:55,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:55,409 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) [2021-11-23 02:04:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:55,491 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2021-11-23 02:04:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:04:55,494 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 [2021-11-23 02:04:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:55,502 INFO L225 Difference]: With dead ends: 22 [2021-11-23 02:04:55,502 INFO L226 Difference]: Without dead ends: 11 [2021-11-23 02:04:55,504 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 [2021-11-23 02:04:55,508 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 [2021-11-23 02:04:55,509 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] [2021-11-23 02:04:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-23 02:04:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-23 02:04:55,538 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) [2021-11-23 02:04:55,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-11-23 02:04:55,540 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2021-11-23 02:04:55,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:55,540 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-23 02:04:55,541 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) [2021-11-23 02:04:55,541 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-23 02:04:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:04:55,542 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:55,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:55,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:04:55,542 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash -278726234, now seen corresponding path program 1 times [2021-11-23 02:04:55,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:55,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981768098] [2021-11-23 02:04:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:55,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:55,604 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:04:55,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83270956] [2021-11-23 02:04:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:55,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:04:55,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:04:55,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:04:55,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:04:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:55,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:04:55,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:04:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:04:55,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:04:55,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:04:55,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981768098] [2021-11-23 02:04:55,766 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:04:55,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83270956] [2021-11-23 02:04:55,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83270956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:55,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:55,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:04:55,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188134450] [2021-11-23 02:04:55,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:55,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:04:55,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:04:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:04:55,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:04:55,771 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) [2021-11-23 02:04:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:55,823 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-11-23 02:04:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:04:55,824 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 [2021-11-23 02:04:55,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:55,824 INFO L225 Difference]: With dead ends: 24 [2021-11-23 02:04:55,824 INFO L226 Difference]: Without dead ends: 18 [2021-11-23 02:04:55,825 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 [2021-11-23 02:04:55,827 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 [2021-11-23 02:04:55,827 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] [2021-11-23 02:04:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-23 02:04:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2021-11-23 02:04:55,831 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) [2021-11-23 02:04:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-23 02:04:55,832 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2021-11-23 02:04:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:55,833 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-23 02:04:55,833 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) [2021-11-23 02:04:55,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-23 02:04:55,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:04:55,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:55,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:55,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:04:56,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:04:56,058 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:04:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1790599809, now seen corresponding path program 1 times [2021-11-23 02:04:56,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:04:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947998948] [2021-11-23 02:04:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:56,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:56,094 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:04:56,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859911188] [2021-11-23 02:04:56,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:56,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:04:56,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:04:56,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:04:56,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:04:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:56,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 02:04:56,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:04:56,272 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 [2021-11-23 02:04:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:04:56,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:04:57,719 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-23 02:04:57,720 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 [2021-11-23 02:04:58,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:58,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:58,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:58,434 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:58,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:58,712 INFO L354 Elim1Store]: treesize reduction 115, result has 50.6 percent of original size [2021-11-23 02:04:58,713 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 [2021-11-23 02:05:03,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:03,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:03,401 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:03,531 INFO L354 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2021-11-23 02:05:03,532 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 [2021-11-23 02:05:05,907 INFO L354 Elim1Store]: treesize reduction 211, result has 19.8 percent of original size [2021-11-23 02:05:05,908 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 [2021-11-23 02:05:05,991 INFO L354 Elim1Store]: treesize reduction 211, result has 19.8 percent of original size [2021-11-23 02:05:05,992 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 [2021-11-23 02:05:06,143 INFO L354 Elim1Store]: treesize reduction 159, result has 38.6 percent of original size [2021-11-23 02:05:06,144 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 [2021-11-23 02:05:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:05:06,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:06,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947998948] [2021-11-23 02:05:06,956 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:05:06,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859911188] [2021-11-23 02:05:06,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859911188] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:05:06,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [278820442] [2021-11-23 02:05:06,977 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-23 02:05:06,978 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:05:06,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:05:06,988 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:05:06,989 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:05:07,175 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-23 02:05:07,175 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 [2021-11-23 02:05:07,434 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:05:07,435 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 [2021-11-23 02:05:07,496 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 [2021-11-23 02:05:07,501 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:05:07,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,600 INFO L354 Elim1Store]: treesize reduction 188, result has 13.8 percent of original size [2021-11-23 02:05:07,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 134 [2021-11-23 02:05:07,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 63 [2021-11-23 02:05:07,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:07,684 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 66 [2021-11-23 02:05:07,736 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 [2021-11-23 02:05:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,747 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 63 treesize of output 63 [2021-11-23 02:05:07,778 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 [2021-11-23 02:05:07,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:07,911 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:05:07,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 140 treesize of output 200 [2021-11-23 02:05:07,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:07,951 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:07,956 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:07,957 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 2 case distinctions, treesize of input 201 treesize of output 93 [2021-11-23 02:05:07,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:08,002 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:05:08,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 152 [2021-11-23 02:05:08,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,060 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:08,065 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:08,066 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 90 treesize of output 93 [2021-11-23 02:05:08,074 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 [2021-11-23 02:05:08,100 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 [2021-11-23 02:05:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:08,242 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:05:08,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 197 [2021-11-23 02:05:08,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:08,295 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:08,296 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 2 case distinctions, treesize of input 234 treesize of output 126 [2021-11-23 02:05:08,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:08,346 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:05:08,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 158 [2021-11-23 02:05:08,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:08,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:08,432 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:08,433 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 90 treesize of output 93 [2021-11-23 02:05:08,444 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 [2021-11-23 02:05:08,475 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:05:08,776 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '215#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:05:08,776 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:05:08,776 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:05:08,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-23 02:05:08,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176553784] [2021-11-23 02:05:08,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:05:08,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:05:08,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:08,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:05:08,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:05:08,779 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) [2021-11-23 02:05:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:08,917 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2021-11-23 02:05:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:05:08,918 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 [2021-11-23 02:05:08,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:08,919 INFO L225 Difference]: With dead ends: 30 [2021-11-23 02:05:08,919 INFO L226 Difference]: Without dead ends: 28 [2021-11-23 02:05:08,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:05:08,921 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 [2021-11-23 02:05:08,921 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] [2021-11-23 02:05:08,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-23 02:05:08,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2021-11-23 02:05:08,926 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) [2021-11-23 02:05:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-23 02:05:08,926 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 11 [2021-11-23 02:05:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:08,927 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-23 02:05:08,927 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) [2021-11-23 02:05:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-23 02:05:08,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 02:05:08,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:08,928 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:08,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:05:09,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:09,130 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:09,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash 321688004, now seen corresponding path program 2 times [2021-11-23 02:05:09,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:09,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784644023] [2021-11-23 02:05:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:09,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:09,173 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:05:09,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735531017] [2021-11-23 02:05:09,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:05:09,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:09,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:09,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:05:09,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:05:09,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 02:05:09,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:05:09,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 02:05:09,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:05:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:05:09,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:05:09,316 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:05:09,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:05:09,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784644023] [2021-11-23 02:05:09,317 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:05:09,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735531017] [2021-11-23 02:05:09,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735531017] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:05:09,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1928678226] [2021-11-23 02:05:09,320 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-23 02:05:09,320 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:05:09,321 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:05:09,321 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:05:09,321 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:05:09,508 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:05:09,508 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 [2021-11-23 02:05:09,529 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 [2021-11-23 02:05:09,567 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 [2021-11-23 02:05:09,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:09,828 INFO L354 Elim1Store]: treesize reduction 318, result has 12.4 percent of original size [2021-11-23 02:05:09,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 492 treesize of output 531 [2021-11-23 02:05:09,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:09,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:09,950 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 50 [2021-11-23 02:05:10,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,075 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:10,080 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 4 case distinctions, treesize of input 534 treesize of output 429 [2021-11-23 02:05:10,200 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 [2021-11-23 02:05:10,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,210 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 63 treesize of output 63 [2021-11-23 02:05:10,227 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 [2021-11-23 02:05:10,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,378 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:05:10,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 231 [2021-11-23 02:05:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,421 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:10,422 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 2 case distinctions, treesize of input 234 treesize of output 72 [2021-11-23 02:05:10,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,453 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:10,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 95 [2021-11-23 02:05:10,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,507 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:10,507 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 90 treesize of output 93 [2021-11-23 02:05:10,515 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 [2021-11-23 02:05:10,540 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 [2021-11-23 02:05:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,645 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:05:10,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 228 [2021-11-23 02:05:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,693 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:10,694 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 2 case distinctions, treesize of input 201 treesize of output 93 [2021-11-23 02:05:10,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,738 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:05:10,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 152 [2021-11-23 02:05:10,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:10,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:10,797 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:10,798 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 90 treesize of output 93 [2021-11-23 02:05:10,806 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 [2021-11-23 02:05:10,831 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:05:11,095 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '366#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-23 02:05:11,095 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:05:11,095 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:05:11,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-23 02:05:11,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097798341] [2021-11-23 02:05:11,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:05:11,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:05:11,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:05:11,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:05:11,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-23 02:05:11,097 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) [2021-11-23 02:05:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:05:11,223 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2021-11-23 02:05:11,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:05:11,224 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 [2021-11-23 02:05:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:05:11,224 INFO L225 Difference]: With dead ends: 45 [2021-11-23 02:05:11,224 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 02:05:11,225 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 [2021-11-23 02:05:11,226 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 [2021-11-23 02:05:11,226 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] [2021-11-23 02:05:11,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 02:05:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 16. [2021-11-23 02:05:11,230 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) [2021-11-23 02:05:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-23 02:05:11,231 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 12 [2021-11-23 02:05:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:05:11,231 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-23 02:05:11,231 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) [2021-11-23 02:05:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-23 02:05:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 02:05:11,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:05:11,232 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:05:11,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:05:11,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:11,433 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:05:11,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:05:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash 944515365, now seen corresponding path program 3 times [2021-11-23 02:05:11,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:05:11,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848335190] [2021-11-23 02:05:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:05:11,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:05:11,470 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:05:11,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319904462] [2021-11-23 02:05:11,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 02:05:11,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:05:11,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:05:11,477 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:05:11,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:05:11,789 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 02:05:11,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:05:11,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 02:05:11,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:05:11,943 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 [2021-11-23 02:05:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:11,994 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:05:11,995 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 [2021-11-23 02:05:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:05:12,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:05:13,456 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-23 02:05:13,456 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 [2021-11-23 02:05:13,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:13,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:13,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:13,920 INFO L354 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2021-11-23 02:05:13,921 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 203 treesize of output 203 [2021-11-23 02:05:35,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,082 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 321 treesize of output 209 [2021-11-23 02:05:35,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:35,545 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 321 treesize of output 209 [2021-11-23 02:05:37,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,200 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,205 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 276 treesize of output 177 [2021-11-23 02:05:37,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:37,392 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 276 treesize of output 177 [2021-11-23 02:05:39,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:39,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,767 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,768 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,778 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 321 treesize of output 196 [2021-11-23 02:05:39,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:39,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:39,887 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 321 treesize of output 196 [2021-11-23 02:05:40,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,165 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 275 treesize of output 162 [2021-11-23 02:05:40,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,469 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 275 treesize of output 162 [2021-11-23 02:05:40,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:40,946 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 230 treesize of output 130 [2021-11-23 02:05:41,369 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:41,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:41,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:41,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:41,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:41,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:41,373 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 230 treesize of output 130 [2021-11-23 02:05:42,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,304 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,304 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,309 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 273 treesize of output 160 [2021-11-23 02:05:42,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,453 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 273 treesize of output 160 [2021-11-23 02:05:42,594 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,601 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 324 treesize of output 198 [2021-11-23 02:05:42,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,731 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,734 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:42,736 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 324 treesize of output 198 [2021-11-23 02:05:43,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:43,353 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 321 treesize of output 196 [2021-11-23 02:05:43,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:43,479 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 321 treesize of output 196 [2021-11-23 02:05:43,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,595 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-23 02:05:43,595 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 366 treesize of output 228 [2021-11-23 02:05:43,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:43,804 INFO L354 Elim1Store]: treesize reduction 163, result has 0.6 percent of original size [2021-11-23 02:05:43,804 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 366 treesize of output 228 [2021-11-23 02:05:45,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:45,218 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 270 treesize of output 158 [2021-11-23 02:05:45,337 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:45,347 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 270 treesize of output 158 [2021-11-23 02:05:45,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,417 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:45,422 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 321 treesize of output 196 [2021-11-23 02:05:45,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:45,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:05:45,478 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 321 treesize of output 196 [2021-11-23 02:05:49,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,215 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 264 treesize of output 171 [2021-11-23 02:05:49,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:49,738 INFO L354 Elim1Store]: treesize reduction 141, result has 15.1 percent of original size [2021-11-23 02:05:49,739 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 306 treesize of output 226 [2021-11-23 02:05:50,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,626 INFO L354 Elim1Store]: treesize reduction 114, result has 31.3 percent of original size [2021-11-23 02:05:50,627 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 261 treesize of output 229 [2021-11-23 02:05:50,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,919 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,920 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,920 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,921 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,923 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,926 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 236 treesize of output 153 [2021-11-23 02:05:50,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,986 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:50,988 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 216 treesize of output 133 [2021-11-23 02:05:52,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,070 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 [2021-11-23 02:05:52,364 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,365 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:52,373 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 212 treesize of output 142 [2021-11-23 02:05:54,550 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:05:54,550 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 805 treesize of output 767 [2021-11-23 02:05:54,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,648 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:05:54,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 776 treesize of output 632 [2021-11-23 02:05:54,660 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,660 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:54,663 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 632 treesize of output 570 [2021-11-23 02:05:55,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,218 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,218 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:05:55,935 INFO L354 Elim1Store]: treesize reduction 129, result has 62.6 percent of original size [2021-11-23 02:05:55,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 776 treesize of output 771 [2021-11-23 02:06:08,376 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 463 treesize of output 431 [2021-11-23 02:06:08,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,409 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:08,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:08,464 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:06:08,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 20 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 448 treesize of output 315 [2021-11-23 02:06:09,718 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 451 treesize of output 417 [2021-11-23 02:06:09,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,739 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:09,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,748 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,756 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:09,760 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:09,840 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:06:09,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 13 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 434 treesize of output 301 [2021-11-23 02:06:13,222 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:06:13,222 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 1600 treesize of output 1532 [2021-11-23 02:06:13,244 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:06:13,245 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 1532 treesize of output 1448 [2021-11-23 02:06:14,084 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:14,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:14,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:14,090 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 1327 treesize of output 1147 [2021-11-23 02:06:15,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:15,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:15,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:15,647 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 170 treesize of output 140 [2021-11-23 02:06:15,966 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:15,967 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 85 treesize of output 64 [2021-11-23 02:06:16,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:16,094 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 85 treesize of output 64 [2021-11-23 02:06:16,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:16,373 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 85 treesize of output 64 [2021-11-23 02:06:19,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:19,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:19,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:19,552 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 268 treesize of output 238 [2021-11-23 02:06:20,958 INFO L354 Elim1Store]: treesize reduction 337, result has 44.1 percent of original size [2021-11-23 02:06:20,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 916 treesize of output 911 [2021-11-23 02:06:21,453 INFO L354 Elim1Store]: treesize reduction 258, result has 43.5 percent of original size [2021-11-23 02:06:21,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 962 treesize of output 952 [2021-11-23 02:06:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:06:25,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848335190] [2021-11-23 02:06:25,231 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:06:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319904462] [2021-11-23 02:06:25,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319904462] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:06:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1427157145] [2021-11-23 02:06:25,233 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-23 02:06:25,234 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:06:25,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:06:25,234 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:06:25,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:06:25,383 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-23 02:06:25,384 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 [2021-11-23 02:06:25,590 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:06:25,590 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 [2021-11-23 02:06:25,633 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:06:25,638 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 [2021-11-23 02:06:25,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,716 INFO L354 Elim1Store]: treesize reduction 188, result has 13.8 percent of original size [2021-11-23 02:06:25,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 134 [2021-11-23 02:06:25,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 63 [2021-11-23 02:06:25,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:25,755 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:06:25,755 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 124 treesize of output 69 [2021-11-23 02:06:25,793 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 [2021-11-23 02:06:25,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,803 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 63 treesize of output 63 [2021-11-23 02:06:25,822 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 [2021-11-23 02:06:25,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:25,938 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:06:25,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 140 treesize of output 200 [2021-11-23 02:06:25,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:25,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:25,967 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:25,968 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 2 case distinctions, treesize of input 201 treesize of output 93 [2021-11-23 02:06:25,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:25,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:25,988 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:25,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 123 [2021-11-23 02:06:26,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:26,046 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:26,047 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 90 treesize of output 93 [2021-11-23 02:06:26,052 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 [2021-11-23 02:06:26,079 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 [2021-11-23 02:06:26,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:26,196 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:06:26,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 197 [2021-11-23 02:06:26,241 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:26,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:26,246 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:26,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 122 treesize of output 64 [2021-11-23 02:06:26,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:26,270 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:26,270 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 2 case distinctions, treesize of input 201 treesize of output 66 [2021-11-23 02:06:26,312 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 [2021-11-23 02:06:26,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:26,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:26,340 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:26,340 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 90 treesize of output 93 [2021-11-23 02:06:26,370 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:06:26,680 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '563#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:06:26,680 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:06:26,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:06:26,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 15 [2021-11-23 02:06:26,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996994677] [2021-11-23 02:06:26,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:06:26,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 02:06:26,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:26,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 02:06:26,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:06:26,682 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) [2021-11-23 02:06:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:27,152 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-23 02:06:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 02:06:27,153 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 [2021-11-23 02:06:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:27,153 INFO L225 Difference]: With dead ends: 31 [2021-11-23 02:06:27,153 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 02:06:27,154 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 [2021-11-23 02:06:27,155 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 [2021-11-23 02:06:27,155 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] [2021-11-23 02:06:27,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 02:06:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-11-23 02:06:27,160 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) [2021-11-23 02:06:27,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-23 02:06:27,161 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 14 [2021-11-23 02:06:27,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:27,161 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-23 02:06:27,162 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) [2021-11-23 02:06:27,162 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-23 02:06:27,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:06:27,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:27,163 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:27,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:27,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:27,376 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:06:27,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1779510269, now seen corresponding path program 4 times [2021-11-23 02:06:27,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:27,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583569443] [2021-11-23 02:06:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:27,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:27,413 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:06:27,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521293301] [2021-11-23 02:06:27,413 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-23 02:06:27,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:27,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:27,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:27,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:06:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:27,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:06:27,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:06:27,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:06:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 02:06:27,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:27,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583569443] [2021-11-23 02:06:27,611 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:06:27,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521293301] [2021-11-23 02:06:27,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521293301] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:06:27,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1243000076] [2021-11-23 02:06:27,613 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-23 02:06:27,614 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:06:27,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:06:27,614 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:06:27,614 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:06:27,752 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-23 02:06:27,753 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 [2021-11-23 02:06:27,981 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:06:27,982 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 [2021-11-23 02:06:28,011 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 [2021-11-23 02:06:28,016 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:06:28,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,116 INFO L354 Elim1Store]: treesize reduction 188, result has 13.8 percent of original size [2021-11-23 02:06:28,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 134 [2021-11-23 02:06:28,162 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:06:28,162 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 65 treesize of output 65 [2021-11-23 02:06:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 36 [2021-11-23 02:06:28,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,238 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 63 treesize of output 63 [2021-11-23 02:06:28,245 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 [2021-11-23 02:06:28,271 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 [2021-11-23 02:06:28,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,410 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:06:28,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 197 [2021-11-23 02:06:28,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,468 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:06:28,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 124 [2021-11-23 02:06:28,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,492 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,497 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:28,498 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 2 case distinctions, treesize of input 234 treesize of output 72 [2021-11-23 02:06:28,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,554 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,562 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:28,562 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 90 treesize of output 93 [2021-11-23 02:06:28,570 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 [2021-11-23 02:06:28,597 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 [2021-11-23 02:06:28,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,730 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:06:28,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 197 [2021-11-23 02:06:28,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,768 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:28,768 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 2 case distinctions, treesize of input 201 treesize of output 120 [2021-11-23 02:06:28,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,809 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:06:28,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 125 [2021-11-23 02:06:28,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:28,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:28,864 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:28,864 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 90 treesize of output 93 [2021-11-23 02:06:28,870 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 [2021-11-23 02:06:28,908 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:06:29,203 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '778#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:06:29,203 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:06:29,203 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:06:29,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-23 02:06:29,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204450670] [2021-11-23 02:06:29,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:06:29,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:06:29,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:29,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:06:29,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-11-23 02:06:29,205 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) [2021-11-23 02:06:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:29,561 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2021-11-23 02:06:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:06:29,562 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 [2021-11-23 02:06:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:29,563 INFO L225 Difference]: With dead ends: 67 [2021-11-23 02:06:29,563 INFO L226 Difference]: Without dead ends: 56 [2021-11-23 02:06:29,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2021-11-23 02:06:29,564 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 [2021-11-23 02:06:29,565 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] [2021-11-23 02:06:29,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-23 02:06:29,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 32. [2021-11-23 02:06:29,571 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) [2021-11-23 02:06:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2021-11-23 02:06:29,572 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 16 [2021-11-23 02:06:29,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:29,573 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-11-23 02:06:29,573 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) [2021-11-23 02:06:29,573 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2021-11-23 02:06:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:06:29,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:29,574 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:29,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:29,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:29,780 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:06:29,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1303797829, now seen corresponding path program 5 times [2021-11-23 02:06:29,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:29,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506625972] [2021-11-23 02:06:29,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:29,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:29,814 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:06:29,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650211146] [2021-11-23 02:06:29,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:06:29,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:29,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:29,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:29,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:06:30,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 02:06:30,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:06:30,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 02:06:30,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:06:30,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:06:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:06:30,333 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:30,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506625972] [2021-11-23 02:06:30,334 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:06:30,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650211146] [2021-11-23 02:06:30,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650211146] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:06:30,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010938742] [2021-11-23 02:06:30,336 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-23 02:06:30,337 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:06:30,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:06:30,337 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:06:30,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:06:30,500 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:06:30,500 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 [2021-11-23 02:06:30,516 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 [2021-11-23 02:06:30,551 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 [2021-11-23 02:06:30,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:30,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:30,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:30,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:30,736 INFO L354 Elim1Store]: treesize reduction 318, result has 12.4 percent of original size [2021-11-23 02:06:30,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 492 treesize of output 531 [2021-11-23 02:06:30,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:30,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:30,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 52 [2021-11-23 02:06:30,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:30,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:30,931 INFO L354 Elim1Store]: treesize reduction 72, result has 4.0 percent of original size [2021-11-23 02:06:30,931 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 5 case distinctions, treesize of input 482 treesize of output 430 [2021-11-23 02:06:31,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,040 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 63 treesize of output 63 [2021-11-23 02:06:31,045 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 [2021-11-23 02:06:31,062 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 [2021-11-23 02:06:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,163 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:06:31,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 168 treesize of output 228 [2021-11-23 02:06:31,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,206 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:31,207 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 2 case distinctions, treesize of input 234 treesize of output 126 [2021-11-23 02:06:31,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,241 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:06:31,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 158 [2021-11-23 02:06:31,273 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 [2021-11-23 02:06:31,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,290 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:31,290 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 90 treesize of output 93 [2021-11-23 02:06:31,305 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 [2021-11-23 02:06:31,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,427 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:06:31,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 231 [2021-11-23 02:06:31,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,468 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:31,469 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 2 case distinctions, treesize of input 201 treesize of output 120 [2021-11-23 02:06:31,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,491 INFO L354 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2021-11-23 02:06:31,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 99 [2021-11-23 02:06:31,518 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 [2021-11-23 02:06:31,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:31,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:31,541 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:31,541 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 90 treesize of output 93 [2021-11-23 02:06:31,559 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:06:31,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1064#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-23 02:06:31,788 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:06:31,788 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:06:31,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-11-23 02:06:31,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313606472] [2021-11-23 02:06:31,788 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:06:31,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-23 02:06:31,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-23 02:06:31,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2021-11-23 02:06:31,790 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) [2021-11-23 02:06:32,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:32,226 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2021-11-23 02:06:32,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:06:32,227 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 [2021-11-23 02:06:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:32,228 INFO L225 Difference]: With dead ends: 98 [2021-11-23 02:06:32,228 INFO L226 Difference]: Without dead ends: 77 [2021-11-23 02:06:32,229 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 [2021-11-23 02:06:32,229 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:32,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 58 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:06:32,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-23 02:06:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 46. [2021-11-23 02:06:32,238 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) [2021-11-23 02:06:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2021-11-23 02:06:32,239 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 16 [2021-11-23 02:06:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:32,239 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2021-11-23 02:06:32,239 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) [2021-11-23 02:06:32,239 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2021-11-23 02:06:32,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 02:06:32,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:32,240 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:32,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:32,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 02:06:32,469 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:06:32,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:32,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1036058177, now seen corresponding path program 6 times [2021-11-23 02:06:32,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:32,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409353118] [2021-11-23 02:06:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:32,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:32,500 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:06:32,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358540164] [2021-11-23 02:06:32,500 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-23 02:06:32,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:32,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:32,502 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:32,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:06:33,551 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-23 02:06:33,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:06:33,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-23 02:06:33,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:33,639 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 [2021-11-23 02:06:33,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:33,671 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:06:33,671 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 [2021-11-23 02:06:33,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:33,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:33,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:33,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:06:33,716 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:06:33,717 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 52 treesize of output 50 [2021-11-23 02:06:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 02:06:34,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:07:01,977 WARN L227 SmtUtils]: Spent 25.39s 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) [2021-11-23 02:07:01,979 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-23 02:07:01,979 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 [2021-11-23 02:07:04,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:04,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:04,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:04,103 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:10,781 WARN L227 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 50 DAG size of output: 30 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:07:10,781 INFO L354 Elim1Store]: treesize reduction 112, result has 31.7 percent of original size [2021-11-23 02:07:10,782 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 220 treesize of output 211 [2021-11-23 02:07:12,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:12,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:12,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:12,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:12,210 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:12,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:12,212 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 150 treesize of output 103 [2021-11-23 02:07:14,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:14,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:14,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:14,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:14,647 INFO L244 Elim1Store]: Index analysis took 131 ms [2021-11-23 02:07:17,619 INFO L354 Elim1Store]: treesize reduction 139, result has 15.2 percent of original size [2021-11-23 02:07:17,620 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 195 treesize of output 160 [2021-11-23 02:07:25,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:25,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:25,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:25,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:25,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:25,711 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:25,712 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 [2021-11-23 02:07:26,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:26,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:26,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:26,192 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:26,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:26,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:26,195 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 [2021-11-23 02:07:27,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:27,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:27,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:27,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:29,354 INFO L354 Elim1Store]: treesize reduction 140, result has 15.7 percent of original size [2021-11-23 02:07:29,354 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 [2021-11-23 02:07:31,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:31,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:31,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:31,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:31,644 INFO L244 Elim1Store]: Index analysis took 135 ms [2021-11-23 02:07:33,640 INFO L354 Elim1Store]: treesize reduction 140, result has 15.7 percent of original size [2021-11-23 02:07:33,640 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 [2021-11-23 02:07:43,366 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,369 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,369 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,374 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 80 [2021-11-23 02:07:43,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:43,789 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 80 [2021-11-23 02:07:49,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:49,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:49,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:07:52,563 INFO L354 Elim1Store]: treesize reduction 113, result has 32.7 percent of original size [2021-11-23 02:07:52,563 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 509 treesize of output 505 [2021-11-23 02:08:02,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,844 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 80 [2021-11-23 02:08:02,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,907 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,912 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 167 treesize of output 107 [2021-11-23 02:08:02,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:02,980 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 [2021-11-23 02:08:03,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,044 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 [2021-11-23 02:08:03,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,117 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,157 INFO L354 Elim1Store]: treesize reduction 165, result has 0.6 percent of original size [2021-11-23 02:08:03,157 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 110 [2021-11-23 02:08:03,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,247 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,342 INFO L354 Elim1Store]: treesize reduction 138, result has 15.9 percent of original size [2021-11-23 02:08:03,342 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 167 treesize of output 133 [2021-11-23 02:08:03,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:03,389 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 124 treesize of output 77 [2021-11-23 02:08:04,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:04,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:04,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:04,255 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:04,358 INFO L354 Elim1Store]: treesize reduction 114, result has 31.3 percent of original size [2021-11-23 02:08:04,359 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 265 treesize of output 218 [2021-11-23 02:08:04,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:04,429 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:04,439 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:08:04,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 36 [2021-11-23 02:08:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:08:04,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:08:04,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409353118] [2021-11-23 02:08:04,503 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:08:04,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358540164] [2021-11-23 02:08:04,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358540164] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:08:04,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [252472309] [2021-11-23 02:08:04,506 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-23 02:08:04,506 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:08:04,506 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:08:04,507 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:08:04,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:08:04,733 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-23 02:08:04,734 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 [2021-11-23 02:08:04,946 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:08:04,946 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 [2021-11-23 02:08:04,977 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:08:04,982 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 [2021-11-23 02:08:05,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,070 INFO L354 Elim1Store]: treesize reduction 188, result has 13.8 percent of original size [2021-11-23 02:08:05,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 134 [2021-11-23 02:08:05,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,116 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 34 [2021-11-23 02:08:05,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 36 [2021-11-23 02:08:05,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,184 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 63 treesize of output 63 [2021-11-23 02:08:05,191 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 [2021-11-23 02:08:05,217 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 [2021-11-23 02:08:05,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,384 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:08:05,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 197 [2021-11-23 02:08:05,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,518 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:08:05,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 124 [2021-11-23 02:08:05,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,542 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:08:05,542 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 2 case distinctions, treesize of input 234 treesize of output 72 [2021-11-23 02:08:05,591 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 [2021-11-23 02:08:05,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,626 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:08:05,626 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 90 treesize of output 93 [2021-11-23 02:08:05,648 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 [2021-11-23 02:08:05,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,766 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:08:05,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 137 treesize of output 197 [2021-11-23 02:08:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,801 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:08:05,801 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 2 case distinctions, treesize of input 201 treesize of output 93 [2021-11-23 02:08:05,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,855 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:08:05,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 208 treesize of output 152 [2021-11-23 02:08:05,889 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 [2021-11-23 02:08:05,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:05,905 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:05,912 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:08:05,912 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 90 treesize of output 93 [2021-11-23 02:08:05,942 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:08:06,330 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1425#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-23 02:08:06,330 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:08:06,330 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:08:06,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2021-11-23 02:08:06,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666577571] [2021-11-23 02:08:06,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:08:06,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 02:08:06,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:08:06,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 02:08:06,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=299, Unknown=1, NotChecked=0, Total=380 [2021-11-23 02:08:06,332 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) [2021-11-23 02:08:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:08:07,802 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2021-11-23 02:08:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 02:08:07,803 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 [2021-11-23 02:08:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:08:07,804 INFO L225 Difference]: With dead ends: 58 [2021-11-23 02:08:07,804 INFO L226 Difference]: Without dead ends: 56 [2021-11-23 02:08:07,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=108, Invalid=443, Unknown=1, NotChecked=0, Total=552 [2021-11-23 02:08:07,806 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 [2021-11-23 02:08:07,806 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] [2021-11-23 02:08:07,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-23 02:08:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2021-11-23 02:08:07,815 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) [2021-11-23 02:08:07,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2021-11-23 02:08:07,816 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 17 [2021-11-23 02:08:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:08:07,817 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2021-11-23 02:08:07,817 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) [2021-11-23 02:08:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2021-11-23 02:08:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 02:08:07,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:08:07,818 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:08:07,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-23 02:08:08,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:08,033 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:08:08,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:08:08,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1731625634, now seen corresponding path program 1 times [2021-11-23 02:08:08,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:08:08,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814537644] [2021-11-23 02:08:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:08,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:08:08,080 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:08:08,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330770111] [2021-11-23 02:08:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:08:08,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:08:08,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:08:08,081 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:08:08,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 02:08:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:08:08,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 02:08:08,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:08:08,411 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 [2021-11-23 02:08:08,475 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 [2021-11-23 02:08:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:08,508 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:08:08,508 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 [2021-11-23 02:08:08,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:08,611 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:08:08,612 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 [2021-11-23 02:08:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:09,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:09,206 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-23 02:08:09,206 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 63 treesize of output 59 [2021-11-23 02:08:09,517 INFO L354 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2021-11-23 02:08:09,517 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 89 treesize of output 53 [2021-11-23 02:08:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:08:09,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:08:22,133 WARN L227 SmtUtils]: Spent 9.86s 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) [2021-11-23 02:08:22,134 INFO L354 Elim1Store]: treesize reduction 1087, result has 37.4 percent of original size [2021-11-23 02:08:22,134 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 [2021-11-23 02:08:23,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:23,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,385 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 [2021-11-23 02:08:23,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,675 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:23,680 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 111 treesize of output 69 [2021-11-23 02:08:24,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:24,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:24,536 INFO L354 Elim1Store]: treesize reduction 76, result has 21.6 percent of original size [2021-11-23 02:08:24,536 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 104 [2021-11-23 02:08:24,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:24,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:24,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:24,866 INFO L354 Elim1Store]: treesize reduction 147, result has 12.5 percent of original size [2021-11-23 02:08:24,866 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 120 [2021-11-23 02:08:25,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,623 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 [2021-11-23 02:08:25,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:25,966 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 109 treesize of output 68 [2021-11-23 02:08:27,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,348 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 195 treesize of output 134 [2021-11-23 02:08:27,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,540 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 [2021-11-23 02:08:27,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:27,724 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 [2021-11-23 02:08:28,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,060 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,152 INFO L354 Elim1Store]: treesize reduction 141, result has 15.1 percent of original size [2021-11-23 02:08:28,152 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 [2021-11-23 02:08:28,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:28,542 INFO L354 Elim1Store]: treesize reduction 141, result has 15.1 percent of original size [2021-11-23 02:08:28,542 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 [2021-11-23 02:08:29,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:29,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,428 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,429 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 195 treesize of output 134 [2021-11-23 02:08:29,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:29,795 INFO L354 Elim1Store]: treesize reduction 118, result has 28.9 percent of original size [2021-11-23 02:08:29,795 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 195 treesize of output 181 [2021-11-23 02:08:31,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,011 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,016 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 [2021-11-23 02:08:31,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,268 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:31,270 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 [2021-11-23 02:08:32,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,139 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 151 treesize of output 103 [2021-11-23 02:08:32,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:32,267 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 151 treesize of output 103 [2021-11-23 02:08:33,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:33,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:33,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:33,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:33,950 INFO L354 Elim1Store]: treesize reduction 112, result has 31.7 percent of original size [2021-11-23 02:08:33,950 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 369 treesize of output 330 [2021-11-23 02:08:34,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:34,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,186 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 327 treesize of output 247 [2021-11-23 02:08:34,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,355 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,357 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,358 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 235 treesize of output 177 [2021-11-23 02:08:34,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:34,541 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 302 treesize of output 224 [2021-11-23 02:08:35,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:35,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,009 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,010 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 279 treesize of output 199 [2021-11-23 02:08:35,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,117 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:35,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,123 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 346 treesize of output 246 [2021-11-23 02:08:35,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,563 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,564 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 262 treesize of output 194 [2021-11-23 02:08:35,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:35,845 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 195 treesize of output 147 [2021-11-23 02:08:36,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:36,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,218 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 304 treesize of output 214 [2021-11-23 02:08:36,958 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:36,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:36,963 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 367 treesize of output 277 [2021-11-23 02:08:37,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,444 INFO L354 Elim1Store]: treesize reduction 138, result has 15.9 percent of original size [2021-11-23 02:08:37,444 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 394 treesize of output 320 [2021-11-23 02:08:37,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,893 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:37,899 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 352 treesize of output 262 [2021-11-23 02:08:38,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:38,054 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:38,055 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:38,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:38,152 INFO L354 Elim1Store]: treesize reduction 138, result has 15.9 percent of original size [2021-11-23 02:08:38,152 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 327 treesize of output 273 [2021-11-23 02:08:39,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:39,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:39,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:39,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:39,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:39,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:39,944 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 141 treesize of output 88 [2021-11-23 02:08:40,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,065 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 [2021-11-23 02:08:40,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:40,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,335 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,336 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,337 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:40,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:40,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 195 [2021-11-23 02:08:41,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,065 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,067 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 162 treesize of output 113 [2021-11-23 02:08:41,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:41,338 INFO L354 Elim1Store]: treesize reduction 164, result has 24.4 percent of original size [2021-11-23 02:08:41,339 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 509 treesize of output 396 [2021-11-23 02:08:42,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:42,176 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:42,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:42,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:42,209 INFO L354 Elim1Store]: treesize reduction 151, result has 0.7 percent of original size [2021-11-23 02:08:42,209 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 210 treesize of output 144 [2021-11-23 02:08:43,174 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,190 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 171 treesize of output 118 [2021-11-23 02:08:43,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:43,533 INFO L354 Elim1Store]: treesize reduction 115, result has 57.7 percent of original size [2021-11-23 02:08:43,534 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 11 case distinctions, treesize of input 518 treesize of output 505 [2021-11-23 02:08:48,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,594 INFO L354 Elim1Store]: treesize reduction 151, result has 0.7 percent of original size [2021-11-23 02:08:48,594 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 219 treesize of output 1 [2021-11-23 02:08:48,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:48,688 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 [2021-11-23 02:08:49,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,036 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,036 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:08:49,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,073 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:08:49,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 312 treesize of output 216 [2021-11-23 02:08:49,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:08:49,749 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 150 treesize of output 93 [2021-11-23 02:08:58,311 WARN L227 SmtUtils]: Spent 6.50s on a formula simplification. DAG size of input: 113 DAG size of output: 65 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:08:58,311 INFO L354 Elim1Store]: treesize reduction 306, result has 37.9 percent of original size [2021-11-23 02:08:58,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1688 treesize of output 1635 [2021-11-23 02:08:59,216 INFO L354 Elim1Store]: treesize reduction 337, result has 48.0 percent of original size [2021-11-23 02:08:59,217 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 1629 treesize of output 1629 [2021-11-23 02:09:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:09:39,352 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:09:39,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814537644] [2021-11-23 02:09:39,353 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:09:39,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330770111] [2021-11-23 02:09:39,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330770111] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:09:39,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2016736353] [2021-11-23 02:09:39,355 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-23 02:09:39,355 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:09:39,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:09:39,355 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:09:39,356 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:09:39,563 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-23 02:09:39,563 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 [2021-11-23 02:09:39,586 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 [2021-11-23 02:09:39,650 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 [2021-11-23 02:09:39,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:39,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:39,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:39,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:39,846 INFO L354 Elim1Store]: treesize reduction 318, result has 12.4 percent of original size [2021-11-23 02:09:39,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 492 treesize of output 531 [2021-11-23 02:09:39,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:39,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:39,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 77 [2021-11-23 02:09:39,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:39,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 86 [2021-11-23 02:09:40,064 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 [2021-11-23 02:09:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,076 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 63 treesize of output 63 [2021-11-23 02:09:40,093 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 [2021-11-23 02:09:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,228 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:09:40,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 231 [2021-11-23 02:09:40,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,268 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:09:40,269 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 2 case distinctions, treesize of input 201 treesize of output 93 [2021-11-23 02:09:40,286 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,294 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:09:40,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 123 [2021-11-23 02:09:40,324 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 [2021-11-23 02:09:40,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,350 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:09:40,350 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 90 treesize of output 93 [2021-11-23 02:09:40,367 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 [2021-11-23 02:09:40,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,555 INFO L354 Elim1Store]: treesize reduction 323, result has 15.9 percent of original size [2021-11-23 02:09:40,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 171 treesize of output 231 [2021-11-23 02:09:40,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,604 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:09:40,605 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 2 case distinctions, treesize of input 201 treesize of output 66 [2021-11-23 02:09:40,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,699 INFO L354 Elim1Store]: treesize reduction 46, result has 38.7 percent of original size [2021-11-23 02:09:40,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 93 [2021-11-23 02:09:40,753 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 [2021-11-23 02:09:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:40,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:40,789 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:09:40,790 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 90 treesize of output 93 [2021-11-23 02:09:40,891 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:09:41,550 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1736#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (+ ~N~0 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~mem17#1|) 1 0)) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-23 02:09:41,551 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:09:41,551 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:09:41,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-11-23 02:09:41,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039956922] [2021-11-23 02:09:41,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 02:09:41,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-23 02:09:41,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:09:41,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-23 02:09:41,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2021-11-23 02:09:41,556 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) [2021-11-23 02:09:41,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:09:41,796 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2021-11-23 02:09:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:09:41,796 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 [2021-11-23 02:09:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:09:41,797 INFO L225 Difference]: With dead ends: 54 [2021-11-23 02:09:41,797 INFO L226 Difference]: Without dead ends: 41 [2021-11-23 02:09:41,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2021-11-23 02:09:41,798 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:09:41,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 23 Unchecked, 0.1s Time] [2021-11-23 02:09:41,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-23 02:09:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-23 02:09:41,806 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) [2021-11-23 02:09:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2021-11-23 02:09:41,806 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 17 [2021-11-23 02:09:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:09:41,807 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2021-11-23 02:09:41,807 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) [2021-11-23 02:09:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2021-11-23 02:09:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:09:41,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:09:41,808 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:09:41,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 02:09:42,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:42,009 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:09:42,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:09:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1569018936, now seen corresponding path program 2 times [2021-11-23 02:09:42,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:09:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146906415] [2021-11-23 02:09:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:09:42,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:09:42,054 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:09:42,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794846366] [2021-11-23 02:09:42,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 02:09:42,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:09:42,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:09:42,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:09:42,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c0757df-f48d-4ba2-a65f-77f6fff0c86f/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 02:09:43,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 02:09:43,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 02:09:43,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 02:09:43,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:09:43,435 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 [2021-11-23 02:09:43,588 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 [2021-11-23 02:09:43,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,635 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:09:43,635 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 [2021-11-23 02:09:43,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,753 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:43,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:43,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:44,103 INFO L354 Elim1Store]: treesize reduction 398, result has 26.6 percent of original size [2021-11-23 02:09:44,103 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 289 treesize of output 637 [2021-11-23 02:09:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:44,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:44,711 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-23 02:09:44,711 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 [2021-11-23 02:09:45,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,168 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-23 02:09:45,168 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 163 [2021-11-23 02:09:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,355 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:09:45,356 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 228 treesize of output 155 [2021-11-23 02:09:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:45,609 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:45,675 INFO L354 Elim1Store]: treesize reduction 135, result has 9.4 percent of original size [2021-11-23 02:09:45,676 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 228 treesize of output 169 [2021-11-23 02:09:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:46,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:46,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:46,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:46,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:46,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:46,656 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:46,671 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:09:46,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 199 treesize of output 132 [2021-11-23 02:09:46,767 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:09:47,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:47,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:47,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,364 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:47,404 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-23 02:09:47,404 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 331 treesize of output 218 [2021-11-23 02:09:47,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,592 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:47,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:47,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:47,638 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-23 02:09:47,638 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 315 treesize of output 198 [2021-11-23 02:09:48,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:48,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:48,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:48,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:48,325 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 304 treesize of output 187 [2021-11-23 02:09:49,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:49,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:49,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:49,094 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:09:49,094 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 292 treesize of output 183 [2021-11-23 02:09:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,421 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:53,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:53,440 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:09:53,440 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 207 treesize of output 115 [2021-11-23 02:09:53,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:53,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:53,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:53,749 INFO L354 Elim1Store]: treesize reduction 123, result has 6.1 percent of original size [2021-11-23 02:09:53,749 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 859 treesize of output 589 [2021-11-23 02:09:54,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:54,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:54,955 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:09:54,956 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 313 treesize of output 157 [2021-11-23 02:09:55,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:55,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:55,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:55,729 INFO L354 Elim1Store]: treesize reduction 106, result has 19.1 percent of original size [2021-11-23 02:09:55,729 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 589 treesize of output 335 [2021-11-23 02:09:56,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:56,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:56,347 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:09:56,347 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 257 treesize of output 134 [2021-11-23 02:09:56,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:56,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:56,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:09:56,732 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 02:09:56,732 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 238 treesize of output 99 [2021-11-23 02:09:58,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:09:58,718 INFO L354 Elim1Store]: treesize reduction 302, result has 6.5 percent of original size [2021-11-23 02:09:58,718 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 [2021-11-23 02:10:00,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:00,514 INFO L354 Elim1Store]: treesize reduction 506, result has 7.5 percent of original size [2021-11-23 02:10:00,514 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 [2021-11-23 02:10:02,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:02,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:05,506 INFO L354 Elim1Store]: treesize reduction 3347, result has 15.5 percent of original size [2021-11-23 02:10:05,506 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 367 treesize of output 819 [2021-11-23 02:10:06,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,417 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:06,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,436 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:06,454 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:10:06,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 19 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 291 treesize of output 192 [2021-11-23 02:10:06,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:06,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:06,722 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-23 02:10:06,723 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:06,743 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:10:06,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 19 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 291 treesize of output 192 [2021-11-23 02:10:07,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:07,680 INFO L244 Elim1Store]: Index analysis took 141 ms [2021-11-23 02:10:07,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:07,708 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:10:07,709 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 291 treesize of output 192 [2021-11-23 02:10:08,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,823 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:08,836 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:10:08,836 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 379 treesize of output 246 [2021-11-23 02:10:08,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:08,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:09,072 INFO L354 Elim1Store]: treesize reduction 140, result has 0.7 percent of original size [2021-11-23 02:10:09,073 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 681 treesize of output 526 [2021-11-23 02:10:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:09,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:09,539 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-23 02:10:09,539 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 379 treesize of output 246 [2021-11-23 02:10:25,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,625 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:25,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:25,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:25,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:25,679 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-23 02:10:25,679 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 30 case distinctions, treesize of input 247 treesize of output 163 [2021-11-23 02:10:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:10:26,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:26,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:10:54,685 WARN L227 SmtUtils]: Spent 28.52s on a formula simplification. DAG size of input: 840 DAG size of output: 231 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:10:54,686 INFO L354 Elim1Store]: treesize reduction 3329, result has 16.2 percent of original size [2021-11-23 02:10:54,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 22 select indices, 22 select index equivalence classes, 5 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 204 case distinctions, treesize of input 1712 treesize of output 2123